In Re Bilski

United States Court of Appeals for the Federal Circuit

2007-1130
(Serial No. 08/833,892)

IN RE BERNARD L. BILSKI
and RAND A. WARSAW

David C. Hanson, The Webb Law Firm, of Pittsburgh, Pennsylvania, argued for
appellants. With him on the brief were Richard L. Byrne and Nathan J. Prepelka.

Raymond T. Chen, Associate Solicitor, Office of the Solicitor, United States Patent
and Trademark Office, of Arlington, Virginia, argued for the Director of the United States
Patent and Trademark Office. With him on the brief were James A. Toupin, General
Counsel, Stephen Walsh, Acting Solicitor, and Thomas W. Krause, Associate Solicitor. Of
counsel on the brief were Jeffrey S. Bucholtz, Acting Assistant Attorney General, John J.
Fargo, Director, Intellectual Property Staff, Commercial Branch, and Scott R. McIntosh and
Mark R. Freeman, Attorneys, Appellate Staff, Civil Division, United States Department of
Justice, of Washington, DC.

John F. Duffy, Fried, Frank, Harris, Shriver & Jacobson LLP, of Washington, DC,
argued for amicus curiae Regulatory Datacorp, Inc. Of counsel on the brief were Thomas
S. Biemer, Steven I. Wallach, and Philip J. Foret, Dilworth Paxson LLP, of Philadelphia,
Pennsylvania; and John A. Squires, Goldman, Sachs & Co., of New York, New York.

William F. Lee, Wilmer Cutler Pickering Hale and Dorr LLP, of Boston,
Massachusetts, argued for amici curiae Financial Services Industry, Bank of America, et
al., and for all other amici. With him on the brief for Financial Services Industry, Bank of
America, et al., were Randolph D. Moss, Donald R. Steinberg, and Felicia H. Ellsworth,
and Seth P. Waxman, of Washington, DC.

J. Michael Jakes, Finnegan, Henderson, Farabow, Garrett & Dunner, L.L.P., of
Washington, DC, for amicus curiae Accenture. With him on the brief were Erika H. Arner
and Ronald E. Myrick, and Denise W. DeFranco, of Cambridge, Massachusetts. Of
counsel on the brief was Wayne P. Sobon, Accenture, of San Jose, California.

Christopher A. Hansen, American Civil Liberties Union Foundation, of New York,
New York, for amicus curiae American Civil Liberties Union.
 Kenneth C. Bass, III, Sterne, Kessler, Goldstein & Fox P.L.L.C., of Washington, DC,
for amicus curiae American Express Company. With him on the brief were Robert Greene
Sterne and Michelle K. Holoubek. Of counsel on the brief was Maxine Y. Graham,
American Express Company, of New York, New York.

Kelsey I. Nix, Willkie Farr & Gallagher LLP, of New York, New York, for amicus
curiae American Institute of Certified Public Accountants. With him on the brief was
Heather M. Schneider.

Meredith Martin Addy, Brinks Hofer Gilson & Lione, of Chicago, Illinois, for amicus
curiae American Intellectual Property Law Association. With her on the briefs was Charles
M. McMahon. Of counsel on the briefs were James Pooley and Judith M. Saffer, American
Intellectual Property Law Assocation, of Arlington, Virginia, and Denise W. DeFranco,
Barbara A. Fiacco, James M. Flaherty, Jr., and Miriam Pogach, Foley Hoag LLP, of
Boston, Massachusetts.

Joseph A. Keyes, Jr., Association of American Medical Colleges, of Washington,
DC, for amicus curiae Association of American Medical Colleges.

Nancy J. Linck, Rothwell, Figg, Ernst & Manbeck, of Washington, DC, for amicus
curiae Biotechnology Industry Organization. With her on the brief were Minaksi Bhatt and
R. Elizabeth Brenner-Leifer. Of counsel on the brief was Hans Sauer, Biotechnology
Industry Organization, of Washington, DC.

Erik P. Belt, Bromberg and Sunstein LLP, of Boston, Massachusetts, for amicus
curiae Boston Patent Law Association. With him on the brief were John J. Stickevers and
Jakub M. Michna. Of counsel on the brief were Robert M. Abrahamsen, Steven J. Henry,
and Ilan N. Barzilay, Wolf, Greenfield and Sacks, P.C., of Boston, Massachusetts.

Andrew J. Pincus, Mayer Brown LLP, of Washington, DC, for amicus curiae The
Business Software Alliance. With him on the brief were Dan Himmelfarb and Brian D.
Netter.

Richard H. Stern, Kellogg, Huber, Hansen, Todd, Evans & Figel, P.L.L.C., of
Washington, DC, for amicus curiae Center for Advanced Study and Research on
Intellectual Property of the University of Washington School of Law.

Dean Alderucci, CFPH, LLC, of New York, New York, for amicus curiae CFPH, LLC.

Matthew Schruers, Computer & Communications Industry Association, of
Washington, DC, for amicus curiae Computer & Communications Industry Association.

Jason M. Schultz, University of California Berkeley School of Law, of Berkeley,
California, for amici curiae Consumers Union, et al.
 Carter G. Phillips, Sidley Austin LLP, of Washington, DC, for amici curiae Dell Inc.,
et al. With him on the brief were Jeffrey P. Kushan, and Constantine L. Trela, Jr. and
Richard A. Cederoth, of Chicago, Illinois.

James J. Kelley, Eli Lilly and Company, of Indianapolis, Indiana, for amicus curiae
Eli Lilly and Company. With him on the brief were Robert A. Armitage and Alexander
Wilson.

Jerry Cohen, Burns & Levinson, LLP, of Boston, Massachusetts, for amicus curiae
End Software Patents.

Michael J. Songer, Crowell & Moring, LLP, of Washington, DC, for amicus curiae
Federal Circuit Bar Association. Of counsel on the brief was Edward R. Reines, Federal
Circuit Bar Association, of Washington, DC.

Maxim H. Waldbaum, Schiff Hardin LLP, of New York, New York, for amicus curiae
Fédération Internationale Des Conseils En Propriété Industrielle.

Michael R. McCarthy, Parsons Behle & Latimer, of Salt Lake City, Utah, for amicus
curiae Professor Lee A. Hollaar.

Howard L. Speight, of Houston, Texas, for amicus curiae Houston Intellectual
Property Law Association.

Eric E. Bensen, Paul, Hastings, Janofsky & Walker LLP, of New York, New York, for
amicus curiae Intellectual Property Owners Association. Of counsel on the brief were
Robert P. Hayter and Steven W. Miller, Intellectual Property Owners Association, of
Washington, DC. Of counsel was Herbert C. Wamsley, Intellectual Property Owners
Association, of Washington, DC.

Christopher Landau, Kirkland & Ellis LLP, of Washington, DC, for amicus curiae
International Business Machines Corporation. With him on the brief were Gregory S.
Arovas and Timothy K. Gilman, of New York, New York. Of counsel on the brief were
David J. Kappos, IBM Corporation, of Armonk, New York, and John R. Thomas,
Georgetown University Law Center, of Washington, DC.

Jack E. Haken, Philips Intellectual Property and Standards, of Briarcliff Manor, New
York, for amicus curiae Koninklijke Philips Electronics N.V. With him on the brief was
Todd Holmbo.

Mark A. Lemley, Stanford Law School, of Stanford, California, for amici curiae law
professors John R. Allison, et al. Of counsel on the brief were Michael Risch, West
Virginia University College of Law, of Morgantown, West Virginia, and R. Polk Wagner,
University of Pennsylvania Law School, of Philadelphia, Pennsylvania.

Joshua D. Sarnoff, Washington College of Law, American University, of
Washington, DC, for amici curiae law professors Ralph D. Clifford, et al.
 Todd L. Juneau, Juneau Partners Patent & Trademark Firm, PLLC, of Alexandria,
Virginia, for amicus curiae Jason V. Morgan.

James R. Myers, Ropes & Gray LLP, of Washington, DC, for amici curiae Pacific
Life Insurance Company, et al. With him on the brief was Brandon H. Stroy, of New York,
New York.

Robert H. Tiller, Red Hat, Inc., of Raleigh, North Carolina, for amicus curiae Red
Hat, Inc. With him on the brief was Richard E. Fontana.

Charles R. Macedo, Amster, Rothstein & Ebenstein LLP, of New York, New York,
for amici curiae Reserve Management Corporation, et al. With him on the brief were
Anthony F. Lo Cicero and Jung S. Hahm.

Katherine K. Lutton, Fish & Richardson P.C., of Redwood City, California, for
amicus curiae SAP America, Inc. With her on the brief were John A. Dragseth, of
Minneapolis, Minnesota, and Christian A. Chu, of Washington, DC. Of counsel on the brief
were Kevin R. Hamel and Gerard Wissing, SAP America, Inc., of Newtown Square,
Pennsylvania.

Scott E. Bain, Software & Information Industry Association, of Washington, DC, for
amicus curiae Software & Information Industry Association.

Michael J. Swope, Woodcock Washburn LLP, of Seattle, Washington, for amicus
curiae Washington State Patent Law Association. With him on the brief was Grzegorz S.
Plichta. Of counsel on the brief were Peter J. Knudsen, Nastech Pharmaceutical Co., Inc.,
of Bothell, Washington, and Dale C. Barr, Washington State Patent Law Association, of
Seattle, Washington.

R. Carl Moy, William Mitchell College of Law, of St. Paul, Minnesota, for amicus
curiae William Mitchell College of Law Intellectual Property Institute. With him on the brief
was Jay A. Erstling.

Christopher J. Wright, Harris, Wiltshire & Grannis LLP, of Washington, DC, for amici
curiae Yahoo! Inc., et al. With him on the brief were Timothy J. Simeone and Joseph C.
Cavender.

Gregory Aharonian, of San Francisco, California, as amicus curiae, pro se.

Kevin Emerson Collins, Indiana University School of Law, Bloomington, of
Bloomington, Indiana, as amicus curiae, pro se.

Roberta J. Morris, of Menlo Park, California, as amicus curiae, pro se.

Appealed from: United States Patent and Trademark Office
Board of Patent Appeals and Interferences
 United States Court of Appeals for the Federal Circuit
2007-1130
(Serial No. 08/833,892)

IN RE BERNARD L. BILSKI
and RAND A. WARSAW

Appeal from the United States Patent and Trademark Office, Board of Patent Appeals
and Interferences.

__________________________

DECIDED: October 30, 2008
__________________________

Before MICHEL, Chief Judge, NEWMAN, MAYER, LOURIE, RADER, SCHALL,
BRYSON, GAJARSA, LINN, DYK, PROST, and MOORE, Circuit Judges.

Opinion for the court filed by Chief Judge MICHEL, in which Circuit Judges LOURIE,
SCHALL, BRYSON, GAJARSA, LINN, DYK, PROST, and MOORE join. Concurring
opinion filed by Circuit Judge DYK, in which Circuit Judge LINN joins. Dissenting
opinion filed by Circuit Judge NEWMAN. Dissenting opinion filed by Circuit Judge
MAYER. Dissenting opinion filed by Circuit Judge RADER.

MICHEL, Chief Judge.

Bernard L. Bilski and Rand A. Warsaw (collectively, "Applicants") appeal from the

final decision of the Board of Patent Appeals and Interferences ("Board") sustaining the

rejection of all eleven claims of their U.S. Patent Application Serial No. 08/833,892

("′892 application"). See Ex parte Bilski, No. 2002-2257, 2006 WL 5738364 (B.P.A.I.

Sept. 26, 2006) ("Board Decision"). Specifically, Applicants argue that the examiner

erroneously rejected the claims as not directed to patent-eligible subject matter under

35 U.S.C. § 101, and that the Board erred in upholding that rejection. The appeal was

originally argued before a panel of the court on October 1, 2007. Prior to disposition by
the panel, however, we sua sponte ordered en banc review. Oral argument before the

en banc court was held on May 8, 2008. We affirm the decision of the Board because

we conclude that Applicants' claims are not directed to patent-eligible subject matter,

and in doing so, we clarify the standards applicable in determining whether a claimed

method constitutes a statutory "process" under § 101.

I.

Applicants filed their patent application on April 10, 1997. The application

contains eleven claims, which Applicants argue together here. Claim 1 reads:

A method for managing the consumption risk costs of a commodity sold by
a commodity provider at a fixed price comprising the steps of:

(a) initiating a series of transactions between said commodity provider
and consumers of said commodity wherein said consumers
purchase said commodity at a fixed rate based upon historical
averages, said fixed rate corresponding to a risk position of said
consumer;

(b) identifying market participants for said commodity having a counter-
risk position to said consumers; and

(c) initiating a series of transactions between said commodity provider
and said market participants at a second fixed rate such that said
series of market participant transactions balances the risk position
of said series of consumer transactions

′892 application cl.1. In essence, the claim is for a method of hedging risk in the field of

commodities trading. For example, coal power plants (i.e., the "consumers") purchase

coal to produce electricity and are averse to the risk of a spike in demand for coal since

such a spike would increase the price and their costs. Conversely, coal mining

companies (i.e., the "market participants") are averse to the risk of a sudden drop in

demand for coal since such a drop would reduce their sales and depress prices. The

claimed method envisions an intermediary, the "commodity provider," that sells coal to

2007-1130 2
the power plants at a fixed price, thus isolating the power plants from the possibility of a

spike in demand increasing the price of coal above the fixed price. The same provider

buys coal from mining companies at a second fixed price, thereby isolating the mining

companies from the possibility that a drop in demand would lower prices below that

fixed price. And the provider has thus hedged its risk; if demand and prices skyrocket, it

has sold coal at a disadvantageous price but has bought coal at an advantageous price,

and vice versa if demand and prices fall. Importantly, however, the claim is not limited

to transactions involving actual commodities, and the application discloses that the

recited transactions may simply involve options, i.e., rights to purchase or sell the

commodity at a particular price within a particular timeframe. See J.A. at 86-87.

The examiner ultimately rejected claims 1-11 under 35 U.S.C. § 101, stating:

"[r]egarding . . . claims 1-11, the invention is not implemented on a specific apparatus

and merely manipulates [an] abstract idea and solves a purely mathematical problem

without any limitation to a practical application, therefore, the invention is not directed to

the technological arts." See Board Decision, slip op. at 3. The examiner noted that

Applicants had admitted their claims are not limited to operation on a computer, and he

concluded that they were not limited by any specific apparatus. See id. at 4.

On appeal, the Board held that the examiner erred to the extent he relied on a

"technological arts" test because the case law does not support such a test. Id. at 41-

42. Further, the Board held that the requirement of a specific apparatus was also

erroneous because a claim that does not recite a specific apparatus may still be

directed to patent-eligible subject matter "if there is a transformation of physical subject

matter from one state to another." Id. at 42. Elaborating further, the Board stated:

2007-1130 3
"'mixing' two elements or compounds to produce a chemical substance or mixture is

clearly a statutory transformation although no apparatus is claimed to perform the step

and although the step could be performed manually." Id. But the Board concluded that

Applicants' claims do not involve any patent-eligible transformation, holding that

transformation of "non-physical financial risks and legal liabilities of the commodity

provider, the consumer, and the market participants" is not patent-eligible subject

matter. Id. at 43. The Board also held that Applicants' claims "preempt[] any and every

possible way of performing the steps of the [claimed process], by human or by any kind

of machine or by any combination thereof," and thus concluded that they only claim an

abstract idea ineligible for patent protection. Id. at 46-47. Finally, the Board held that

Applicants' process as claimed did not produce a "useful, concrete and tangible result,"

and for this reason as well was not drawn to patent-eligible subject matter. Id. at 49-50.

Applicants timely appealed to this court under 35 U.S.C. § 141. We have

jurisdiction under 28 U.S.C. § 1295(a)(4)(A).

II.

Whether a claim is drawn to patent-eligible subject matter under § 101 is a

threshold inquiry, and any claim of an application failing the requirements of § 101 must

be rejected even if it meets all of the other legal requirements of patentability. In re

Comiskey, 499 F.3d 1365, 1371 (Fed. Cir. 2007) 1 (quoting Parker v. Flook, 437 U.S.

1
Although our decision in Comiskey may be misread by some as requiring
in every case that the examiner conduct a § 101 analysis before assessing any other
issue of patentability, we did not so hold. As with any other patentability requirement,
an examiner may reject a claim solely on the basis of § 101. Or, if the examiner deems
it appropriate, she may reject the claim on any other ground(s) without addressing
§ 101. But given that § 101 is a threshold requirement, claims that are clearly drawn to
unpatentable subject matter should be identified and rejected on that basis. Thus, an

2007-1130 4
584, 593 (1978)); In re Bergy, 596 F.2d 952, 960 (CCPA 1979), vacated as moot sub

nom. Diamond v. Chakrabarty, 444 U.S. 1028 (1980). Whether a claim is drawn to

patent-eligible subject matter under § 101 is an issue of law that we review de novo.

Comiskey, 499 F.3d at 1373; AT&T Corp. v. Excel Commc'ns, Inc., 172 F.3d 1352,

1355 (Fed. Cir. 1998). Although claim construction, which we also review de novo, is

an important first step in a § 101 analysis, see State St. Bank & Trust Co. v. Signature

Fin. Group, 149 F.3d 1368, 1370 (Fed. Cir. 1998) (noting that whether a claim is invalid

under § 101 "is a matter of both claim construction and statutory construction"), there is

no claim construction dispute in this appeal. We review issues of statutory

interpretation such as this one de novo as well. Id.

A.

As this appeal turns on whether Applicants' invention as claimed meets the

requirements set forth in § 101, we begin with the words of the statute:

Whoever invents or discovers any new and useful process, machine,
manufacture, or composition of matter, or any new and useful
improvement thereof, may obtain a patent therefor, subject to the
conditions and requirements of this title.

35 U.S.C. § 101. The statute thus recites four categories of patent-eligible subject

matter: processes, machines, manufactures, and compositions of matter. It is

undisputed that Applicants' claims are not directed to a machine, manufacture, or

composition of matter. 2 Thus, the issue before us involves what the term "process" in

examiner should generally first satisfy herself that the application's claims are drawn to
patent-eligible subject matter.
2
As a result, we decline to discuss In re Nuijten because that decision
primarily concerned whether a claim to an electronic signal was drawn to a patent-
eligible manufacture. 500 F.3d 1346, 1356-57 (Fed. Cir. 2007). We note that the PTO

2007-1130 5
§ 101 means, and how to determine whether a given claim—and Applicants' claim 1 in

particular—is a "new and useful process." 3

As several amici have argued, the term "process" is ordinarily broad in meaning,

at least in general lay usage. In 1952, at the time Congress amended § 101 to include

"process," 4 the ordinary meaning of the term was: "[a] procedure . . . [a] series of

actions, motions, or operations definitely conducing to an end, whether voluntary or

involuntary." WEBSTER'S NEW INTERNATIONAL DICTIONARY OF THE ENGLISH LANGUAGE

1972 (2d ed. 1952). There can be no dispute that Applicants' claim would meet this

definition of "process." But the Supreme Court has held that the meaning of "process"

as used in § 101 is narrower than its ordinary meaning. See Flook, 437 U.S. at 588-89

("The holding [in Benson] forecloses a purely literal reading of § 101."). Specifically, the

Court has held that a claim is not a patent-eligible "process" if it claims "laws of nature,

natural phenomena, [or] abstract ideas." Diamond v. Diehr, 450 U.S. 175, 185 (1981)

(citing Flook, 437 U.S. at 589, and Gottschalk v. Benson, 409 U.S. 63, 67 (1972)). Such

did not dispute that the process claims in Nuijten were drawn to patent-eligible subject
matter under § 101 and allowed those claims.
3
Congress provided a definition of "process" in 35 U.S.C. § 100(b): "The
term 'process' means process, art or method, and includes a new use of a known
process, machine, manufacture, composition of matter, or material." However, this
provision is unhelpful given that the definition itself uses the term "process."
4
The Patent Act of 1793 originally used the term "art" rather than "process,"
which remained unchanged until Congress enacted the current version of § 101 in
1952. But the Supreme Court has held that this change did not alter the scope of patent
eligibility over processes because "[i]n the language of the patent law, [a process] is an
art." Diamond v. Diehr, 450 U.S. 175, 182-84 (1981) (quoting Cochrane v. Deener, 94
U.S. 780, 787-88 (1877)); see also Comiskey, 499 F.3d at 1375.

2007-1130 6
fundamental principles 5 are "part of the storehouse of knowledge of all men . . . free to

all men and reserved exclusively to none." Funk Bros. Seed Co. v. Kalo Inoculant Co.,

333 U.S. 127, 130 (1948); see also Le Roy v. Tatham, 55 U.S. (14 How.) 156, 175

(1852) ("A principle, in the abstract, is a fundamental truth; an original cause; a motive;

these cannot be patented, as no one can claim in either of them an exclusive right.").

"Phenomena of nature, though just discovered, mental processes, and abstract

intellectual concepts are not patentable, as they are the basic tools of scientific and

technological work." Benson, 409 U.S. at 67; see also Comiskey, 499 F.3d at 1378-79

(holding that "mental processes," "processes of human thinking," and "systems that

depend for their operation on human intelligence alone" are not patent-eligible subject

matter under Benson).

The true issue before us then is whether Applicants are seeking to claim a

fundamental principle (such as an abstract idea) or a mental process. And the

underlying legal question thus presented is what test or set of criteria governs the

determination by the Patent and Trademark Office ("PTO") or courts as to whether a

claim to a process is patentable under § 101 or, conversely, is drawn to unpatentable

subject matter because it claims only a fundamental principle.

The Supreme Court last addressed this issue in 1981 in Diehr, which concerned

a patent application seeking to claim a process for producing cured synthetic rubber

products. 450 U.S. at 177-79. The claimed process took temperature readings during

cure and used a mathematical algorithm, the Arrhenius equation, to calculate the time

when curing would be complete. Id. Noting that a mathematical algorithm alone is

5
As used in this opinion, "fundamental principles" means "laws of nature,
natural phenomena, and abstract ideas."

2007-1130 7
unpatentable because mathematical relationships are akin to a law of nature, the Court

nevertheless held that the claimed process was patent-eligible subject matter, stating:

[The inventors] do not seek to patent a mathematical formula. Instead,
they seek patent protection for a process of curing synthetic rubber. Their
process admittedly employs a well-known mathematical equation, but they
do not seek to pre-empt the use of that equation. Rather, they seek only to
foreclose from others the use of that equation in conjunction with all of the
other steps in their claimed process.

Id. at 187 (emphasis added). 6 The Court declared that while a claim drawn to a

fundamental principle is unpatentable, "an application of a law of nature or mathematical

formula to a known structure or process may well be deserving of patent protection." Id.

(emphasis in original); see also Mackay Radio & Tel. Co. v. Radio Corp. of Am., 306

U.S. 86, 94 (1939) ("While a scientific truth, or the mathematical expression of it, is not a

patentable invention, a novel and useful structure created with the aid of knowledge of

scientific truth may be.").

The Court in Diehr thus drew a distinction between those claims that "seek to

pre-empt the use of" a fundamental principle, on the one hand, and claims that seek

only to foreclose others from using a particular "application" of that fundamental

principle, on the other. 450 U.S. at 187. Patents, by definition, grant the power to

exclude others from practicing that which the patent claims. Diehr can be understood to

suggest that whether a claim is drawn only to a fundamental principle is essentially an

inquiry into the scope of that exclusion; i.e., whether the effect of allowing the claim

6
Mathematical algorithms have, in other cases, been identified instead as
abstract ideas rather than laws of nature. See, e.g., State St., 149 F.3d at 1373.
Whether either or both views are correct is immaterial since both laws of nature and
abstract ideas are unpatentable under § 101. Diehr, 450 U.S. at 185.

2007-1130 8
would be to allow the patentee to pre-empt substantially all uses of that fundamental

principle. If so, the claim is not drawn to patent-eligible subject matter.

In Diehr, the Court held that the claims at issue did not pre-empt all uses of the

Arrhenius equation but rather claimed only "a process for curing rubber . . . which

incorporates in it a more efficient solution of the equation." 450 U.S. at 188. The

process as claimed included several specific steps to control the curing of rubber more

precisely: "These include installing rubber in a press, closing the mold, constantly

determining the temperature of the mold, constantly recalculating the appropriate cure

time through the use of the formula and a digital computer, and automatically opening

the press at the proper time." Id. at 187. Thus, one would still be able to use the

Arrhenius equation in any process not involving curing rubber, and more importantly,

even in any process to cure rubber that did not include performing "all of the other steps

in their claimed process." See id.; see also Tilghman v. Proctor, 102 U.S. 707, 729

(1880) (holding patentable a process of breaking down fat molecules into fatty acids and

glycerine in water specifically requiring both high heat and high pressure since other

processes, known or as yet unknown, using the reaction of water and fat molecules

were not claimed).

In contrast to Diehr, the earlier Benson case presented the Court with claims

drawn to a process of converting data in binary-coded decimal ("BCD") format to pure

binary format via an algorithm programmed onto a digital computer. Benson, 409 U.S.

at 65. The Court held the claims to be drawn to unpatentable subject matter:

It is conceded that one may not patent an idea. But in practical effect that
would be the result if the formula for converting BCD numerals to pure
binary numerals were patented in this case. The mathematical formula
involved here has no substantial practical application except in connection

2007-1130 9
 with a digital computer, which means that if the judgment below is
affirmed, the patent would wholly pre-empt the mathematical formula and
in practical effect would be a patent on the algorithm itself.

Id. at 71-72 (emphasis added). Because the algorithm had no uses other than those

that would be covered by the claims (i.e., any conversion of BCD to pure binary on a

digital computer), the claims pre-empted all uses of the algorithm and thus they were

effectively drawn to the algorithm itself. See also O'Reilly v. Morse, 56 U.S. (15 How.)

62, 113 (1853) (holding ineligible a claim pre-empting all uses of electromagnetism to

print characters at a distance).

The question before us then is whether Applicants' claim recites a fundamental

principle and, if so, whether it would pre-empt substantially all uses of that fundamental

principle if allowed. Unfortunately, this inquiry is hardly straightforward. How does one

determine whether a given claim would pre-empt all uses of a fundamental principle?

Analogizing to the facts of Diehr or Benson is of limited usefulness because the more

challenging process claims of the twenty-first century are seldom so clearly limited in

scope as the highly specific, plainly corporeal industrial manufacturing process of Diehr;

nor are they typically as broadly claimed or purely abstract and mathematical as the

algorithm of Benson.

The Supreme Court, however, has enunciated a definitive test to determine

whether a process claim is tailored narrowly enough to encompass only a particular

application of a fundamental principle rather than to pre-empt the principle itself. A

claimed process is surely patent-eligible under § 101 if: (1) it is tied to a particular

machine or apparatus, or (2) it transforms a particular article into a different state or

thing. See Benson, 409 U.S. at 70 ("Transformation and reduction of an article 'to a

2007-1130 10
different state or thing' is the clue to the patentability of a process claim that does not

include particular machines."); Diehr, 450 U.S. at 192 (holding that use of mathematical

formula in process "transforming or reducing an article to a different state or thing"

constitutes patent-eligible subject matter); see also Flook, 437 U.S. at 589 n.9 ("An

argument can be made [that the Supreme] Court has only recognized a process as

within the statutory definition when it either was tied to a particular apparatus or

operated to change materials to a 'different state or thing'"); Cochrane v. Deener, 94

U.S. 780, 788 (1876) ("A process is . . . an act, or a series of acts, performed upon the

subject-matter to be transformed and reduced to a different state or thing."). 7 A claimed

process involving a fundamental principle that uses a particular machine or apparatus

would not pre-empt uses of the principle that do not also use the specified machine or

apparatus in the manner claimed. And a claimed process that transforms a particular

article to a specified different state or thing by applying a fundamental principle would

not pre-empt the use of the principle to transform any other article, to transform the

same article but in a manner not covered by the claim, or to do anything other than

transform the specified article.

The process claimed in Diehr, for example, clearly met both criteria. The process

operated on a computerized rubber curing apparatus and transformed raw, uncured

rubber into molded, cured rubber products. Diehr, 450 U.S. at 184, 187. The claim at

issue in Flook, in contrast, was directed to using a particular mathematical formula to

calculate an "alarm limit"—a value that would indicate an abnormal condition during an

7
While the Court did not give explicit definitions of terms such as "tied to,"
"transforms," or "article," a careful analysis of its opinions and the subsequent
jurisprudence of this court applying those decisions, discussed infra, informs our
understanding of the Court's machine-or-transformation test.

2007-1130 11
unspecified chemical reaction. 437 U.S. at 586. The Court rejected the claim as drawn

to the formula itself because the claim did not include any limitations specifying "how to

select the appropriate margin of safety, the weighting factor, or any of the other

variables . . . the chemical processes at work, the [mechanism for] monitoring of

process variables, or the means of setting off an alarm or adjusting an alarm system."

See id. at 586, 595. The claim thus was not limited to any particular chemical (or other)

transformation; nor was it tied to any specific machine or apparatus for any of its

process steps, such as the selection or monitoring of variables or the setting off or

adjusting of the alarm. 8 See id.

A canvas of earlier Supreme Court cases reveals that the results of those

decisions were also consistent with the machine-or-transformation test later articulated

in Benson and reaffirmed in Diehr. See Tilghman, 102 U.S. at 729 (particular process

of transforming fats into constituent compounds held patentable); Cochrane, 94 U.S. at

785-88 (process transforming grain meal into purified flour held patentable); Morse, 56

U.S. (15 How.) at 113 (process of using electromagnetism to print characters at a

distance that was not transformative or tied to any particular apparatus held

unpatentable). Interestingly, Benson presents a difficult case under its own test in that

the claimed process operated on a machine, a digital computer, but was still held to be

8
To the extent it may be argued that Flook did not explicitly follow the
machine-or-transformation test first articulated in Benson, we note that the more recent
decision in Diehr reaffirmed the machine-or-transformation test. See Diehr, 450 U.S. at
191-92. Moreover, the Diehr Court explained that Flook "presented a similar situation"
to Benson and considered it consistent with the holdings of Diehr and Benson. Diehr at
186-87, 189, 191-92. We thus follow the Diehr Court's understanding of Flook.

2007-1130 12
ineligible subject matter. 9 However, in Benson, the limitations tying the process to a

computer were not actually limiting because the fundamental principle at issue, a

particular algorithm, had no utility other than operating on a digital computer. Benson,

409 U.S. at 71-72. Thus, the claim's tie to a digital computer did not reduce the pre-

emptive footprint of the claim since all uses of the algorithm were still covered by the

claim.

B.

Applicants and several amici 10 have argued that the Supreme Court did not

intend the machine-or-transformation test to be the sole test governing § 101 analyses.

As already noted, however, the Court explicitly stated in Benson that "[t]ransformation

and reduction of an article 'to a different state or thing' is the clue to the patentability of a

process claim that does not include particular machines." 11 409 U.S. at 70 (emphasis

added). And the Court itself later noted in Flook that at least so far it had "only

9
We acknowledge that the Supreme Court in Benson stated that the claims
at issue "were not limited . . . to any particular apparatus or machinery." 409 U.S. at 64.
However, the Court immediately thereafter stated: "[The claims] purported to cover any
use of the claimed method in a general-purpose digital computer of any type." Id. And,
as discussed herein, the Court relied for its holding on its understanding that the
claimed process pre-empted all uses of the recited algorithm because its only possible
use was on a digital computer. Id. at 71-72. The Diehr Court, in discussing Benson,
relied only on this latter understanding of the Benson claims. See Diehr, 450 U.S. at
185-87. We must do the same.
10
See, e.g., Br. of Amicus Curiae Am. Intellectual Prop. Law Ass'n at 17-21;
Br. of Amicus Curiae Regulatory Datacorp, Inc. at 10-15.
11
We believe that the Supreme Court spoke of the machine-or-
transformation test as the "clue" to patent-eligibility because the test is the tool used to
determine whether a claim is drawn to a statutory "process"—the statute does not itself
explicitly mention machine implementation or transformation. We do not consider the
word "clue" to indicate that the machine-or-implementation test is optional or merely
advisory. Rather, the Court described it as the clue, not merely "a" clue. See Benson,
409 U.S. at 70.

2007-1130 13
recognized a process as within the statutory definition when it either was tied to a

particular apparatus or operated to change materials to a 'different state or thing.'" 437

U.S. at 589 n.9. Finally, the Court in Diehr once again applied the machine-or-

transformation test in its most recent decision regarding the patentability of processes

under § 101. 450 U.S. at 184.

We recognize, however, that the Court was initially equivocal in first putting

forward this test in Benson. As the Applicants and several amici point out, the Court

there stated:

It is argued that a process patent must either be tied to a particular
machine or apparatus or must operate to change articles or materials to a
'different state or thing.' We do not hold that no process patent could ever
qualify if it did not meet the requirements of our prior precedents.

Benson, 409 U.S. at 71. In Flook, the Court took note that this statement had been

made in Benson but merely stated: "As in Benson, we assume that a valid process

patent may issue even if it does not meet [the machine-or-transformation test]." 437

U.S. at 589 n.9 (emphasis added). And this caveat was not repeated in Diehr when the

Court reaffirmed the machine-or-transformation test. See Diehr, 450 U.S. at 184

(quoting Benson, 409 U.S. at 70) (“Transformation and reduction of an article ‘to a

different state or thing’ is the clue to the patentability of a process claim that does not

include particular machines.”). Therefore, we believe our reliance on the Supreme

Court's machine-or-transformation test as the applicable test for § 101 analyses of

process claims is sound.

Nevertheless, we agree that future developments in technology and the sciences

may present difficult challenges to the machine-or-transformation test, just as the

widespread use of computers and the advent of the Internet has begun to challenge it in

2007-1130 14
the past decade. Thus, we recognize that the Supreme Court may ultimately decide to

alter or perhaps even set aside this test to accommodate emerging technologies. And

we certainly do not rule out the possibility that this court may in the future refine or

augment the test or how it is applied. At present, however, and certainly for the present

case, we see no need for such a departure and reaffirm that the machine-or-

transformation test, properly applied, is the governing test for determining patent

eligibility of a process under § 101. 12

C.

As a corollary, the Diehr Court also held that mere field-of-use limitations are

generally insufficient to render an otherwise ineligible process claim patent-eligible. See

450 U.S. at 191-92 (noting that ineligibility under § 101 "cannot be circumvented by

attempting to limit the use of the formula to a particular technological environment").

We recognize that tension may be seen between this consideration and the Court's

overall goal of preventing the wholesale pre-emption of fundamental principles. Why

not permit patentees to avoid overbroad pre-emption by limiting claim scope to

particular fields of use? This tension is resolved, however, by recalling the purpose

behind the Supreme Court's discussion of pre-emption, namely that pre-emption is

merely an indication that a claim seeks to cover a fundamental principle itself rather

12
The Diehr Court stated: "[W]hen a claim containing a mathematical
formula implements or applies that formula in a structure or process which, when
considered as a whole, is performing a function which the patent laws were designed to
protect (e.g., transforming or reducing an article to a different state or thing), then the
claim satisfies the requirements of § 101." 450 U.S at 192 (emphases added). When
read together with Benson and Flook, on which the Diehr Court firmly relied, we believe
this statement is consistent with the machine-or-transformation test. But as we noted in
AT&T, language such as the use of "e.g." may indicate the Supreme Court's recognition
that the machine-or-transformation test might require modification in the future. See
AT&T, 172 F.3d at 1358-59.

2007-1130 15
than only a specific application of that principle. See id. at 187; Benson, 409 U.S. at 71-

72. Pre-emption of all uses of a fundamental principle in all fields and pre-emption of all

uses of the principle in only one field both indicate that the claim is not limited to a

particular application of the principle. See Diehr, 450 U.S. at 193 n.14 ("A mathematical

formula in the abstract is nonstatutory subject matter regardless of whether the patent is

intended to cover all uses of the formula or only limited uses.") (emphasis added). In

contrast, a claim that is tied to a particular machine or brings about a particular

transformation of a particular article does not pre-empt all uses of a fundamental

principle in any field but rather is limited to a particular use, a specific application.

Therefore, it is not drawn to the principle in the abstract.

The Diehr Court also reaffirmed a second corollary to the machine-or-

transformation test by stating that "insignificant postsolution activity will not transform an

unpatentable principle into a patentable process." Id. at 191-92; see also Flook, 437

U.S. at 590 ("The notion that post-solution activity, no matter how conventional or

obvious in itself, can transform an unpatentable principle into a patentable process

exalts form over substance."). The Court in Flook reasoned:

A competent draftsman could attach some form of post-solution activity
to almost any mathematical formula; the Pythagorean theorem would not
have been patentable, or partially patentable, because a patent
application contained a final step indicating that the formula, when
solved, could be usefully applied to existing surveying techniques.

437 U.S. at 590. 13 Therefore, even if a claim recites a specific machine or a particular

transformation of a specific article, the recited machine or transformation must not

13
The example of the Pythagorean theorem applied to surveying techniques
could also be considered an example of a mere field-of-use limitation.

2007-1130 16
constitute mere "insignificant postsolution activity." 14

D.

We discern two other important aspects of the Supreme Court's § 101

jurisprudence. First, the Court has held that whether a claimed process is novel or non-

obvious is irrelevant to the § 101 analysis. Diehr, 450 U.S. at 188-91. Rather, such

considerations are governed by 35 U.S.C. § 102 (novelty) and § 103 (non-obviousness).

Diehr, 450 U.S. at 188-91. Although § 101 refers to "new and useful" processes, it is

overall "a general statement of the type of subject matter that is eligible for patent

protection 'subject to the conditions and requirements of this title.'" Diehr, 450 U.S. at

189 (quoting § 101). As the legislative history of § 101 indicates, Congress did not

intend the "new and useful" language of § 101 to constitute an independent requirement

of novelty or non-obviousness distinct from the more specific and detailed requirements

of §§ 102 and 103, respectively. Diehr, 450 U.S. at 190-91. 15 So here, it is irrelevant to

the § 101 analysis whether Applicants' claimed process is novel or non-obvious.

Second, the Court has made clear that it is inappropriate to determine the patent-

eligibility of a claim as a whole based on whether selected limitations constitute patent-

14
Although the Court spoke of "postsolution" activity, we have recognized
that the Court's reasoning is equally applicable to any insignificant extra-solution activity
regardless of where and when it appears in the claimed process. See In re Schrader,
22 F.3d 290, 294 (Fed. Cir. 1994) (holding a simple recordation step in the middle of the
claimed process incapable of imparting patent-eligibility under § 101); In re Grams, 888
F.2d 835, 839-40 (Fed. Cir. 1989) (holding a pre-solution step of gathering data
incapable of imparting patent-eligibility under § 101).
15
By the same token, considerations of adequate written description,
enablement, best mode, etc., are also irrelevant to the § 101 analysis because they,
too, are governed by other provisions of the Patent Act. Section 101 does, however,
allow for patents only on useful inventions. Brenner v. Manson, 383 U.S. 519, 532-35
(1966).

2007-1130 17
eligible subject matter. Flook, 437 U.S. at 594 ("Our approach to respondent's

application is, however, not at all inconsistent with the view that a patent claim must be

considered as a whole."); Diehr, 450 U.S. at 188 ("It is inappropriate to dissect the

claims into old and new elements and then to ignore the presence of the old elements in

the analysis."). After all, even though a fundamental principle itself is not patent-eligible,

processes incorporating a fundamental principle may be patent-eligible. Thus, it is

irrelevant that any individual step or limitation of such processes by itself would be

unpatentable under § 101. See In re Alappat, 33 F.3d 1526, 1543-44 (Fed. Cir. 1994)

(en banc) (citing Diehr, 450 U.S. at 187).

III.

In the years following the Supreme Court's decisions in Benson, Flook, and

Diehr, our predecessor court and this court have reviewed numerous cases presenting

a wide variety of process claims, some in technology areas unimaginable when those

seminal Supreme Court cases were heard. 16 Looking to these precedents, we find a

wealth of detailed guidance and helpful examples on how to determine the patent-

eligibility of process claims.

A.

Before we turn to our precedents, however, we first address the issue of whether

several other purported articulations of § 101 tests are valid and useful. The first of

these is known as the Freeman-Walter-Abele test after the three decisions of our

predecessor court that formulated and then refined the test: In re Freeman, 573 F.2d

16
We note that the PTO, too, has been active in analyzing § 101 law. See,
e.g., Ex parte Lundgren, 76 USPQ2d 1385 (B.P.A.I. 2004); Interim Guidelines for
Examination of Patent Applications for Patent Subject Matter Eligibility, Off. Gaz. Pat. &
Trademark Office, Nov. 22, 2005.

2007-1130 18
1237 (CCPA 1978); In re Walter, 618 F.2d 758 (CCPA 1980); and In re Abele, 684 F.2d

902 (CCPA 1982). This test, in its final form, had two steps: (1) determining whether

the claim recites an "algorithm" within the meaning of Benson, then (2) determining

whether that algorithm is "applied in any manner to physical elements or process steps."

Abele, 684 F.2d at 905-07.

Some may question the continued viability of this test, arguing that it appears to

conflict with the Supreme Court's proscription against dissecting a claim and evaluating

patent-eligibility on the basis of individual limitations. See Flook, 437 U.S. at 594

(requiring analysis of claim as a whole in § 101 analysis); see also AT&T, 172 F.3d at

1359; State St., 149 F.3d at 1374. In light of the present opinion, we conclude that the

Freeman-Walter-Abele test is inadequate. Indeed, we have already recognized that a

claim failing that test may nonetheless be patent-eligible. See In re Grams, 888 F.2d

835, 838-39 (Fed. Cir. 1989). Rather, the machine-or-transformation test is the

applicable test for patent-eligible subject matter. 17

The second articulation we now revisit is the "useful, concrete, and tangible

result" language associated with State Street, although first set forth in Alappat. State

St., 149 F.3d at 1373 ("Today, we hold that the transformation of data, representing

discrete dollar amounts, by a machine through a series of mathematical calculations

into a final share price, constitutes a [patent-eligible invention] because it produces 'a

useful, concrete and tangible result' . . . ."); 18 Alappat, 33 F.3d at 1544 ("This is not a

17
Therefore, in Abele, Meyer, Grams, Arrhythmia Research Technology, Inc.
v. Corazonix Corp., 958 F.2d 1053 (Fed. Cir. 1992), and other decisions, those portions
relying solely on the Freeman-Walter-Abele test should no longer be relied on.
18
In State Street, as is often forgotten, we addressed a claim drawn not to a
process but to a machine. 149 F.3d at 1371-72 (holding that the means-plus-function

2007-1130 19
disembodied mathematical concept which may be characterized as an 'abstract idea,'

but rather a specific machine to produce a useful, concrete, and tangible result."); see

also AT&T, 172 F.3d at 1357 ("Because the claimed process applies the Boolean

principle to produce a useful, concrete, tangible result without pre-empting other uses of

the mathematical principle, on its face the claimed process comfortably falls within the

scope of § 101."). The basis for this language in State Street and Alappat was that the

Supreme Court has explained that "certain types of mathematical subject matter,

standing alone, represent nothing more than abstract ideas until reduced to some type

of practical application." Alappat, 33 F.3d at 1543; see also State St., 149 F.3d at 1373.

To be sure, a process tied to a particular machine, or transforming or reducing a

particular article into a different state or thing, will generally produce a "concrete" and

"tangible" result as those terms were used in our prior decisions. But while looking for

"a useful, concrete and tangible result" may in many instances provide useful

indications of whether a claim is drawn to a fundamental principle or a practical

application of such a principle, that inquiry is insufficient to determine whether a claim is

patent-eligible under § 101. And it was certainly never intended to supplant the

Supreme Court's test. Therefore, we also conclude that the "useful, concrete and

tangible result" inquiry is inadequate and reaffirm that the machine-or-transformation

test outlined by the Supreme Court is the proper test to apply. 19

elements of the claims on appeal all corresponded to supporting structures disclosed in
the written description).
19
As a result, those portions of our opinions in State Street and AT&T
relying solely on a "useful, concrete and tangible result" analysis should no longer be
relied on.

2007-1130 20
 We next turn to the so-called "technological arts test" that some amici 20 urge us

to adopt. We perceive that the contours of such a test, however, would be unclear

because the meanings of the terms "technological arts" and "technology" are both

ambiguous and ever-changing. 21 And no such test has ever been explicitly adopted by

the Supreme Court, this court, or our predecessor court, as the Board correctly

observed here. Therefore, we decline to do so and continue to rely on the machine-or-

transformation test as articulated by the Supreme Court.

We further reject calls for categorical exclusions beyond those for fundamental

principles already identified by the Supreme Court. 22 We rejected just such an

exclusion in State Street, noting that the so-called "business method exception" was

unlawful and that business method claims (and indeed all process claims) are "subject

to the same legal requirements for patentability as applied to any other process or

method." 149 F.3d at 1375-76. We reaffirm this conclusion. 23

20
See, e.g., Br. of Amicus Curiae Consumers Union et al. at 6-10; Br. of
Amicus Curiae William Mitchell Coll. of Law Intellectual Prop. Inst. at 14-15.
21
Compare Appellee's Br. at 24-28 (arguing that patents should be reserved
only for "technological" inventions that "involve[] the application of science or
mathematics," thereby excluding "non-technological inventions" such as "activities
whose ability to achieve their claimed goals depended solely on contract formation"),
with Br. of Amicus Curiae Regulatory Datacorp, Inc. at 19-24 (arguing that "innovations
in business, finance, and other applied economic fields plainly qualify as 'technological'"
since "a fair definition of technological is 'characterized by the practical application of
knowledge in a particular field'" and because modern economics has "a closer affinity to
physics and engineering than to liberal arts like English literature").
22
See, e.g., Br. of Amicus Curiae Fin. Servs. Indus. at 20 ("[E]xtending
patent protection to pure methods of doing business . . . is contrary to the constitutional
and statutory basis for granting patent monopolies . . . .").
23
Therefore, although invited to do so by several amici, we decline to adopt
a broad exclusion over software or any other such category of subject matter beyond
the exclusion of claims drawn to fundamental principles set forth by the Supreme Court.

2007-1130 21
 Lastly, we address a possible misunderstanding of our decision in Comiskey.

Some may suggest that Comiskey implicitly applied a new § 101 test that bars any

claim reciting a mental process that lacks significant "physical steps." We did not so

hold, nor did we announce any new test at all in Comiskey. Rather, we simply

recognized that the Supreme Court has held that mental processes, like fundamental

principles, are excluded by § 101 because "'[p]henomena of nature, though just

discovered, mental processes, and abstract intellectual concepts . . . are the basic tools

of scientific and technological work.'" Comiskey, 499 F.3d at 1377 (quoting Benson,

409 U.S. at 67) (emphasis added). And we actually applied the machine-or-

transformation test to determine whether various claims at issue were drawn to patent-

eligible subject matter. 24 Id. at 1379 ("Comiskey has conceded that these claims do not

require a machine, and these claims evidently do not describe a process of manufacture

or a process for the alteration of a composition of matter."). Because those claims failed

the machine-or-transformation test, we held that they were drawn solely to a

fundamental principle, the mental process of arbitrating a dispute, and were thus not

patent-eligible under § 101. Id.

See, e.g., Br. of Amicus Curiae End Software Patents; Br. of Amicus Curiae Red Hat,
Inc. at 4-7. We also note that the process claim at issue in this appeal is not, in any
event, a software claim. Thus, the facts here would be largely unhelpful in illuminating
the distinctions between those software claims that are patent-eligible and those that
are not.
24
Our statement in Comiskey that "a claim reciting an algorithm or abstract
idea can state statutory subject matter only if, as employed in the process, it is
embodied in, operates on, transforms, or otherwise involves another class of statutory
subject matter, i.e., a machine, manufacture, or composition of matter," 499 F.3d at
1376, was simply a summarization of the Supreme Court's machine-or-transformation
test and should not be understood as altering that test.

2007-1130 22
 Further, not only did we not rely on a "physical steps" test in Comiskey, but we

have criticized such an approach to the § 101 analysis in earlier decisions. In AT&T, we

rejected a "physical limitations" test and noted that "the mere fact that a claimed

invention involves inputting numbers, calculating numbers, outputting numbers, and

storing numbers, in and of itself, would not render it nonstatutory subject matter." 172

F.3d at 1359 (quoting State St., 149 F.3d at 1374). The same reasoning applies when

the claim at issue recites fundamental principles other than mathematical algorithms.

Thus, the proper inquiry under § 101 is not whether the process claim recites sufficient

"physical steps," but rather whether the claim meets the machine-or-transformation

test. 25 As a result, even a claim that recites "physical steps" but neither recites a

particular machine or apparatus, nor transforms any article into a different state or thing,

is not drawn to patent-eligible subject matter. Conversely, a claim that purportedly lacks

any "physical steps" but is still tied to a machine or achieves an eligible transformation

passes muster under § 101. 26

B.

With these preliminary issues resolved, we now turn to how our case law

elaborates on the § 101 analysis set forth by the Supreme Court. To the extent that

some of the reasoning in these decisions relied on considerations or tests, such as

"useful, concrete and tangible result," that are no longer valid as explained above, those

aspects of the decisions should no longer be relied on. Thus, we reexamine the facts of
25
Thus, it is simply inapposite to the § 101 analysis whether process steps
performed by software on a computer are sufficiently "physical."
26
Of course, a claimed process wherein all of the process steps may be
performed entirely in the human mind is obviously not tied to any machine and does not
transform any article into a different state or thing. As a result, it would not be patent-
eligible under § 101.

2007-1130 23
certain cases under the correct test to glean greater guidance as to how to perform the

§ 101 analysis using the machine-or-transformation test.

The machine-or-transformation test is a two-branched inquiry; an applicant may

show that a process claim satisfies § 101 either by showing that his claim is tied to a

particular machine, or by showing that his claim transforms an article. See Benson, 409

U.S. at 70. Certain considerations are applicable to analysis under either branch. First,

as illustrated by Benson and discussed below, the use of a specific machine or

transformation of an article must impose meaningful limits on the claim's scope to impart

patent-eligibility. See Benson, 409 U.S. at 71-72. Second, the involvement of the

machine or transformation in the claimed process must not merely be insignificant extra-

solution activity. See Flook, 437 U.S. at 590.

As to machine implementation, Applicants themselves admit that the language of

claim 1 does not limit any process step to any specific machine or apparatus. See

Appellants' Br. at 11. As a result, issues specific to the machine implementation part of

the test are not before us today. We leave to future cases the elaboration of the precise

contours of machine implementation, as well as the answers to particular questions,

such as whether or when recitation of a computer suffices to tie a process claim to a

particular machine.

We will, however, consider some of our past cases to gain insight into the

transformation part of the test. A claimed process is patent-eligible if it transforms an

article into a different state or thing. This transformation must be central to the purpose

of the claimed process. But the main aspect of the transformation test that requires

clarification here is what sorts of things constitute "articles" such that their

2007-1130 24
transformation is sufficient to impart patent-eligibility under § 101. It is virtually self-

evident that a process for a chemical or physical transformation of physical objects or

substances is patent-eligible subject matter. As the Supreme Court stated in Benson:

[T]he arts of tanning, dyeing, making waterproof cloth, vulcanizing India
rubber, smelting ores . . . are instances, however, where the use of
chemical substances or physical acts, such as temperature control,
changes articles or materials. The chemical process or the physical acts
which transform the raw material are, however, sufficiently definite to
confine the patent monopoly within rather definite bounds.

409 U.S. at 70 (quoting Corning v. Burden, 56 U.S. (15 How.) 252, 267-68 (1854)); see

also Diehr, 450 U.S. at 184 (process of curing rubber); Tilghman, 102 U.S. at 729

(process of reducing fats into constituent acids and glycerine).

The raw materials of many information-age processes, however, are electronic

signals and electronically-manipulated data. And some so-called business methods,

such as that claimed in the present case, involve the manipulation of even more

abstract constructs such as legal obligations, organizational relationships, and business

risks. Which, if any, of these processes qualify as a transformation or reduction of an

article into a different state or thing constituting patent-eligible subject matter?

Our case law has taken a measured approach to this question, and we see no

reason here to expand the boundaries of what constitutes patent-eligible

transformations of articles.

Our predecessor court's mixed result in Abele illustrates this point. There, we

held unpatentable a broad independent claim reciting a process of graphically

displaying variances of data from average values. Abele, 684 F.2d at 909. That claim

did not specify any particular type or nature of data; nor did it specify how or from where

the data was obtained or what the data represented. Id.; see also In re Meyer, 688 F.2d

2007-1130 25
789, 792-93 (CCPA 1982) (process claim involving undefined "complex system" and

indeterminate "factors" drawn from unspecified "testing" not patent-eligible). In contrast,

we held one of Abele's dependent claims to be drawn to patent-eligible subject matter

where it specified that "said data is X-ray attenuation data produced in a two

dimensional field by a computed tomography scanner." Abele, 684 F.2d at 908-09.

This data clearly represented physical and tangible objects, namely the structure of

bones, organs, and other body tissues. Thus, the transformation of that raw data into a

particular visual depiction of a physical object on a display was sufficient to render that

more narrowly-claimed process patent-eligible.

We further note for clarity that the electronic transformation of the data itself into

a visual depiction in Abele was sufficient; the claim was not required to involve any

transformation of the underlying physical object that the data represented. We believe

this is faithful to the concern the Supreme Court articulated as the basis for the

machine-or-transformation test, namely the prevention of pre-emption of fundamental

principles. So long as the claimed process is limited to a practical application of a

fundamental principle to transform specific data, and the claim is limited to a visual

depiction that represents specific physical objects or substances, there is no danger that

the scope of the claim would wholly pre-empt all uses of the principle.

This court and our predecessor court have frequently stated that adding a data-

gathering step to an algorithm is insufficient to convert that algorithm into a patent-

eligible process. E.g., Grams, 888 F.2d at 840 (step of "deriv[ing] data for the algorithm

will not render the claim statutory"); Meyer, 688 F.2d at 794 (“[data-gathering] step[s]

cannot make an otherwise nonstatutory claim statutory”). For example, in Grams we

2007-1130 26
held unpatentable a process of performing a clinical test and, based on the data from

that test, determining if an abnormality existed and possible causes of any abnormality.

888 F.2d at 837, 841. We rejected the claim because it was merely an algorithm

combined with a data-gathering step. Id. at 839-41. We note that, at least in most

cases, gathering data would not constitute a transformation of any article. A

requirement simply that data inputs be gathered—without specifying how—is a

meaningless limit on a claim to an algorithm because every algorithm inherently

requires the gathering of data inputs. Grams, 888 F.2d at 839-40. Further, the inherent

step of gathering data can also fairly be characterized as insignificant extra-solution

activity. See Flook, 437 U.S. at 590.

Similarly, In re Schrader presented claims directed to a method of conducting an

auction of multiple items in which the winning bids were selected in a manner that

maximized the total price of all the items (rather than to the highest individual bid for

each item separately). 22 F.3d 290, 291 (Fed. Cir. 1994). We held the claims to be

drawn to unpatentable subject matter, namely a mathematical optimization algorithm.

Id. at 293-94. No specific machine or apparatus was recited. The claimed method did

require a step of recording the bids on each item, though no particular manner of

recording (e.g., on paper, on a computer) was specified. Id. But, relying on Flook, we

held that this step constituted insignificant extra-solution activity. Id. at 294.

IV.

We now turn to the facts of this case. As outlined above, the operative question

before this court is whether Applicants' claim 1 satisfies the transformation branch of the

machine-or-transformation test.

2007-1130 27
 We hold that the Applicants' process as claimed does not transform any article to

a different state or thing. Purported transformations or manipulations simply of public or

private legal obligations or relationships, business risks, or other such abstractions

cannot meet the test because they are not physical objects or substances, and they are

not representative of physical objects or substances. Applicants' process at most

incorporates only such ineligible transformations. See Appellants' Br. at 11 ("[The

claimed process] transforms the relationships between the commodity provider, the

consumers and market participants . . . ."). As discussed earlier, the process as

claimed encompasses the exchange of only options, which are simply legal rights to

purchase some commodity at a given price in a given time period. See J.A. at 86-87.

The claim only refers to "transactions" involving the exchange of these legal rights at a

"fixed rate corresponding to a risk position." See ′892 application cl.1. Thus, claim 1

does not involve the transformation of any physical object or substance, or an electronic

signal representative of any physical object or substance. Given its admitted failure to

meet the machine implementation part of the test as well, the claim entirely fails the

machine-or-transformation test and is not drawn to patent-eligible subject matter.

Applicants' arguments are unavailing because they rely on incorrect or

insufficient considerations and do not address their claim's failure to meet the

requirements of the Supreme Court's machine-or-transformation test. First, they argue

that claim 1 produces "useful, concrete and tangible results." But as already discussed,

this is insufficient to establish patent-eligibility under § 101. Applicants also argue that

their claimed process does not comprise only "steps that are totally or substantially

practiced in the mind but clearly require physical activity which have [sic] a tangible

2007-1130 28
result." Appellants' Br. at 9. But as previously discussed, the correct analysis is

whether the claim meets the machine-or-transformation test, not whether it recites

"physical steps." Even if it is true that Applicant's claim "can only be practiced by a

series of physical acts" as they argue, see id. at 9, its clear failure to satisfy the

machine-or-transformation test is fatal. Thus, while we agree with Applicants that the

only limit to patent-eligibility imposed by Congress is that the invention fall within one of

the four categories enumerated in § 101, we must apply the Supreme Court's test to

determine whether a claim to a process is drawn to a statutory "process" within the

meaning of § 101. Applied here, Applicants' claim fails that test so it is not drawn to a

"process" under § 101 as that term has been interpreted.

On the other hand, while we agree with the PTO that the machine-or-

transformation test is the correct test to apply in determining whether a process claim is

patent-eligible under § 101, we do not agree, as discussed earlier, that this amounts to

a "technological arts" test. See Appellee's Br. at 24-28. Neither the PTO nor the courts

may pay short shrift to the machine-or-transformation test by using purported

equivalents or shortcuts such as a "technological arts" requirement. Rather, the

machine-or-transformation test is the only applicable test and must be applied, in light of

the guidance provided by the Supreme Court and this court, when evaluating the

patent-eligibility of process claims. When we do so here, however, we must conclude,

as the PTO did, that Applicants' claim fails the test.

Applicants' claim is similar to the claims we held unpatentable under § 101 in

Comiskey. There, the applicant claimed a process for mandatory arbitration of disputes

regarding unilateral documents and bilateral "contractual" documents in which

2007-1130 29
arbitration was required by the language of the document, a dispute regarding the

document was arbitrated, and a binding decision resulted from the arbitration.

Comiskey, 499 F.3d at 1368-69. We held the broadest process claims unpatentable

under § 101 because "these claims do not require a machine, and these claims

evidently do not describe a process of manufacture or a process for the alteration of a

composition of matter." Id. at 1379. We concluded that the claims were instead drawn

to the "mental process" of arbitrating disputes, and that claims to such an "application of

[only] human intelligence to the solution of practical problems" is no more than a claim

to a fundamental principle. Id. at 1377-79 (quoting Benson, 409 U.S. at 67 ("[M]ental

processes, and abstract intellectual concepts are not patentable, as they are the basic

tools of scientific and technological work.")).

Just as the Comiskey claims as a whole were directed to the mental process of

arbitrating a dispute to decide its resolution, the claimed process here as a whole is

directed to the mental and mathematical process of identifying transactions that would

hedge risk. The fact that the claim requires the identified transactions actually to be

made does no more to alter the character of the claim as a whole than the fact that the

claims in Comiskey required a decision to actually be rendered in the arbitration—i.e., in

neither case do the claims require the use of any particular machine or achieve any

eligible transformation.

We have in fact consistently rejected claims like those in the present appeal and

in Comiskey. For example, in Meyer, the applicant sought to patent a method of

diagnosing the location of a malfunction in an unspecified multi-component system that

assigned a numerical value, a "factor," to each component and updated that value

2007-1130 30
based on diagnostic tests of each component. 688 F.2d at 792-93. The locations of

any malfunctions could thus be deduced from reviewing these "factors." The diagnostic

tests were not identified, and the "factors" were not tied to any particular measurement;

indeed they could be arbitrary. Id. at 790. We held that the claim was effectively drawn

only to "a mathematical algorithm representing a mental process," and we affirmed the

PTO's rejection on § 101 grounds. Id. at 796. No machine was recited in the claim, and

the only potential "transformation" was of the disembodied "factors" from one number to

another. Thus, the claim effectively sought to pre-empt the fundamental mental process

of diagnosing the location of a malfunction in a system by noticing that the condition of a

particular component had changed. And as discussed earlier, a similar claim was

rejected in Grams. 27 See 888 F.2d at 839-40 (rejecting claim to process of diagnosing

"abnormal condition" in person by identifying and noticing discrepancies in results of

unspecified clinical tests of different parts of body).

Similarly to the situations in Meyer and Grams, Applicants here seek to claim a

non-transformative process that encompasses a purely mental process of performing

requisite mathematical calculations without the aid of a computer or any other device,

mentally identifying those transactions that the calculations have revealed would hedge

each other's risks, and performing the post-solution step of consummating those

transactions. Therefore, claim 1 would effectively pre-empt any application of the

27
We note that several Justices of the Supreme Court, in a dissent to a
dismissal of a writ of certiorari, expressed their view that a similar claim in Laboratory
Corp. of America Holdings v. Metabolite Laboratories, Inc. was drawn to unpatentable
subject matter. 126 S. Ct. 2921, 2927-28 (2006) (Breyer, J., dissenting; joined by
Stevens, J., and Souter, J.). There, the claimed process only comprised the steps of:
(1) "assaying a body fluid for an elevated level of total homocysteine," and
(2) "correlating an elevated level of total homocysteine in said body fluid with a
deficiency of cobalamin or folate." Id. at 2924.

2007-1130 31
fundamental concept of hedging and mathematical calculations inherent in hedging (not

even limited to any particular mathematical formula). And while Applicants argue that

the scope of this pre-emption is limited to hedging as applied in the area of consumable

commodities, the Supreme Court's reasoning has made clear that effective pre-emption

of all applications of hedging even just within the area of consumable commodities is

impermissible. See Diehr, 450 U.S. at 191-92 (holding that field-of-use limitations are

insufficient to impart patent-eligibility to otherwise unpatentable claims drawn to

fundamental principles). Moreover, while the claimed process contains physical steps

(initiating, identifying), it does not involve transforming an article into a different state or

thing. Therefore, Applicants' claim is not drawn to patent-eligible subject matter under

§ 101.

CONCLUSION

Because the applicable test to determine whether a claim is drawn to a patent-

eligible process under § 101 is the machine-or-transformation test set forth by the

Supreme Court and clarified herein, and Applicants' claim here plainly fails that test, the

decision of the Board is

AFFIRMED.

2007-1130 32
 United States Court of Appeals for the Federal Circuit

2007-1130
(Serial No. 08/833,892)

IN RE BERNARD L. BILSKI
and RAND A. WARSAW

Appeal from the United States Patent and Trademark Office, Board of Patent Appeals
and Interferences.

DYK, Circuit Judge, with whom LINN, Circuit Judge, joins, concurring.

While I fully join the majority opinion, I write separately to respond to the claim in

the two dissents that the majority’s opinion is not grounded in the statute, but rather

“usurps the legislative role.” 1 In fact, the unpatentability of processes not involving

manufactures, machines, or compositions of matter has been firmly embedded in the

statute since the time of the Patent Act of 1793, ch. 11, 1 Stat. 318 (1793). It is our

dissenting colleagues who would legislate by expanding patentable subject matter far

beyond what is allowed by the statute.

I

Section 101 now provides:

Whoever invents or discovers any new and useful process,
machine, manufacture, or composition of matter, or any new and useful
improvement thereof, may obtain a patent therefor, subject to the
conditions and requirements of this title.

1
The dissents fault the majority for “ventur[ing] away from the statute,” Rader, J.,
dissenting op. at 6, and “usurp[ing] the legislative role,” Newman, J., dissenting op. at
41.
35 U.S.C. § 101 (emphases added).

The current version of § 101 can be traced back to the Patent Act of 1793. In

relevant part, the 1793 Act stated that a patent may be granted to any person or

persons who:

shall allege that he or they have invented any new and useful art,
machine, manufacture or composition of matter, or any new and useful
improvement on any art, machine, manufacture or composition of
matter . . . .

1 Stat. 318, 319 § 1 (1793) (emphases added). The criteria for patentability established

by the 1793 Act remained essentially unchanged until 1952, when Congress amended

§ 101 by replacing the word “art” with “process” and providing in § 100(b) a definition of

the term “process.” The Supreme Court has made clear that this change did not alter

the substantive understanding of the statute; it did not broaden the scope of patentable

subject matter. 2 Thus, our interpretation of § 101 must begin with a consideration of

what the drafters of the early patent statutes understood the patentability standard to

require in 1793. See Diehr, 450 U.S. at 182-83 (looking to the 1793 Act).

A

The patentability criteria of the 1793 Act were to a significant extent the same in

the 1790 Act. 3 The 1790 “statute was largely based on and incorporated” features of

2
See Diamond v. Diehr, 450 U.S. 175, 182 (1981) (“[A] process has
historically enjoyed patent protection because it was considered a form of ‘art’ as that
term was used in the 1793 Act.”); Diamond v. Chakrabarty, 447 U.S. 303, 309 (1980).
Rather, the 1952 Act simply affirmed the prior judicial understanding, as set forth in
Corning v. Burden, 56 U.S. (15 How.) 252 (1853), that Congress in 1793 had provided
for the patentability of a “process” under the term “art.” Diehr, 450 U.S. at 182.
3
In relevant part, the 1790 Act permitted patents upon “any useful art,
manufacture, engine, machine, or device, or any improvement therein not before known
or used.” Ch. 11, § 1, 1 Stat. 109, 110 (1790).

2007-1130 2
the English system and reveals a sophisticated knowledge of the English patent law and

practice. 4 This is reflected in Senate committee report 5 for the bill that became the

1790 Act, which expressly noted the drafters’ reliance on the English practice:

The Bill depending before the House of Representatives for the Promotion
of useful Arts is framed according to the Course of Practice in the English
Patent Office except in two Instances—

22 J. Pat. Off. Soc’y at 363 (emphasis added). 6 Likewise, the legislative history of the

1793 Patent Act reflects the same keen understanding of English patent practice.

During a debate in the House over the creation of a Patent Office, for example, the

4
Edward C. Walterscheid, To Promote the Progress of Useful Arts:
American Patent Law & Administration, 1798-1836 109 (1998) (hereinafter To Promote
the Progress); see also Edward C. Walterscheid, The Early Evolution of the United
States Patent Law: Antecedents (Part 1), 76 J. Pat. & Trademark Off. Soc’y 697, 698
(1994) (“[T]he English common law relating to patents was what was best known in the
infant United States.”).
5
Senate Committee Report Accompanying Proposed Amendments to H.R.
41, reprinted in Proceedings in Congress During the Years 1789 & 1790 Relating to the
First Patent & Copyright Laws, 22 J. Pat. Off. Soc’y 352, 363 (1940).
6
Neither of those two instances related to patentable subject matter or was
adopted in the enacted statute. The first proposed departure from the English practice
was a novelty provision protecting the inventor against those who derived their
knowledge of the invention from the true inventor; the second was in a requirement that
patentees make a “Public Advertisement” of their invention. Such a requirement was
thought necessary “in so extensive a Country as the United States.” Senate Report,
reprinted in 22 J. Pat. Off. Soc’y at 363-64.
The American statute ultimately differed in some other respects. For example,
Congress rejected the English rule that the invention need only be novel in England.
The American statute required novelty against the whole world and did not permit
“patents of importation.” See To Promote the Progress, supra n.4 at 95-97, 137-38.

2007-1130 3
Representative who introduced the bill noted that its principles were “an imitation of the

Patent System of Great Britain.” 3 Annals of Congress 855 (1793). 7

Later, Justice Story, writing for the Supreme Court, recognized the profound

influence of the English practice on these early patent laws, which in many respects

codified the common law:

It is obvious to the careful inquirer, that many of the provisions of our
patent act are derived from the principles and practice which have
prevailed in the construction of that of England. . . . The language of [the
patent clause of the Statute of Monopolies] is not, as we shall presently
see, identical with ours; but the construction of it adopted by the English
courts, and the principles and practice which have long regulated the
grants of their patents, as they must have been known and are tacitly
referred to in some of the provisions of our own statute, afford materials to
illustrate it.

Pennock v. Dialogue, 27 U.S. 1, 18 (1829) (emphases added); see also Graham v.

John Deere Co., 383 U.S. 1, 5 (1966) (noting that first patent statute was written against

the “backdrop” of English monopoly practices); Sears, Roebuck & Co. v. Stiffel Co., 376

U.S. 225, 230 n.6 (1964) (“Much American patent law derives from English patent

law.”).

While Congress departed from the English practice in certain limited respects, in

many respects Congress simply adopted the English practice without change. Both the

1790 and the 1793 Acts, for example, adopted the same 14-year patent term as in

7
Even the opposing view—urging departure from the English practice in
particular respects—recognized that the English practice provided considerable
guidance. See 3 Annals of Congress at 855-56 (“[Great Britain] had afforded, it was
true, much experience on the subject; but regulations adopted there would not exactly
comport in all respects either with the situation of this country, or with the rights of the
citizen here. The minds of some members had taken a wrong direction, he conceived,
from the view in which they had taken up the subject under its analogy with the doctrine
of patents in England.”); see also To Promote the Progress, supra n.4 at 216-17.

2007-1130 4
England. Both also required inventors to file a written specification—a requirement

recognized by the English common law courts in the mid-eighteenth century. 8 In

addition, as discussed below, the categories of patentable subject matter closely

tracked the English approach, and in certain respects reflected a deliberate choice

between competing views prevalent in England at the time.

B

The English practice in 1793, imported into the American statutes, explicitly

recognized a limit on patentable subject matter. As the Supreme Court recounted in

Graham v. John Deere, the English concern about limiting the allowable scope of

patents arose from an aversion to the odious Crown practice of granting patents on

particular types of businesses to court favorites. 383 U.S. 1, 5 (1966); see also

MacLeod, supra n.8 at 15 (“But most offensive of all was the granting of monopoly

powers in established industries, as a form of patronage, to courtiers whom the crown

could not otherwise afford to reward.”). Parliament responded to the Crown’s abuses in

1623 by passing the Statute of Monopolies, prohibiting the Crown from granting these

despised industry-type monopolies. Not all monopolies were prohibited, however: the

Statute expressly exempted invention-type patent monopolies. Section 6 of the Statute

exempted from its prohibitions “letters patent and grants of privilege for the term of

fourteen years or under, hereafter to be made, of the sole working or making of any

manner of new manufactures within this realm, to the true and first inventor and

inventors of such manufactures . . . .” 21 Jac. 1. c.3, s.6 (emphases added).

8
See Christine MacLeod, Inventing the Industrial Revolution: The English
Patent System, 1660-1800 48-49 (2002); To Promote the Progress, supra n.4 at 400,
404.

2007-1130 5
 Each of the five categories of patentable subject matter recognized by the 1793

Patent Act—(1) “manufacture,” (2) “machine,” (3) ”composition of matter,” (4) “any new

and useful improvement,” and (5) “art”—was drawn either from the Statute of

Monopolies and the common law refinement of its interpretation or resolved competing

views being debated in England at the time. See To Promote the Progress, supra n.4 at

239.

“Manufacture.” At the most basic level, the 1793 Act, like the Statute of

Monopolies, expressly provided for the patentability of “manufactures.” This language

was not accidental, but rather reflected a conscious adoption of that term as it was used

in the English practice. Id. (“It is clear that the Congress sought to incorporate into the

U.S. statutory scheme in 1793 at least as much of the common law interpretation of

‘new manufactures’ as was understood at the time.”).

“Machine.” Likewise, the category of “machines” in the 1793 Act had long been

understood to be within the term “manufactures” as used in the English statute. See id.;

see, e.g., Morris v. Bramson, 1 Carp. P.C. 30, 31 (K.B. 1776) (sustaining a patent “for

an engine or machine on which is fixed a set of working needles. . . for the making of

eyelet-holes”) (emphasis added); MacLeod, supra n.8 at 101 (noting, among numerous

other early machine patents, seven patents on “machinery to raise coal and ores”

before 1750).

“Composition of Matter.” Although the 1790 statute did not explicitly include

“compositions of matter,” this was remedied in the 1793 statute. At the time,

“compositions of matter” were already understood to be a type of manufacture

patentable under the English statute. See To Promote the Progress, supra n.4, at

2007-1130 6
224 n.4. One example is found in Liardet v. Johnson, 1 Carp. P.C. 35 (K.B. 1778), a

case involving a patent on a “composition” of stucco (a composition of matter). Lord

Mansfield’s jury instructions noted that by the time of that trial he had decided “several

cases” involving compositions: “But if . . . the specification of the composition gives no

proportions, there is an end of his patent. . . . I have determined, [in] several cases here,

the specification must state, where there is a composition, the proportions . . . .” 9

“Any new and useful improvement.” The reference to “any new and useful

improvement” in the 1793 Act also adopted a consensus recently reached by the

English courts. The common law courts had first ruled in Bircot’s Case in the early

seventeenth century that an improvement to an existing machine could not be the

proper subject of a patent under the Statute of Monopolies. See Boulton v. Bull, 2 H. Bl.

463, 488 (C.P. 1795). In 1776 that line of cases was overruled in Morris v. Bramson,

because such a reading of the statute “would go to repeal almost every patent that was

ever granted.” 10

“Art.” As the Supreme Court has recognized, a process “was considered a form

of ‘art’ as that term was used in the 1793 Act.” Diehr, 450 U.S. at 182 (citing Corning v.

Burden, 56 U.S. at 267-268). The language of the Statute of Monopolies permitted

patents on that which could be characterized as the “working or making of any manner

of new manufactures within this realm.” 21 Jac. 1. c.3, s.6. While this language plainly

9
Edward C. Walterscheid, The Nature of the Intellectual Property Clause: A
Study in Historical Perspective 55 (2002) (quoting E. Wyndham Hulme, On the History
of the Patent Laws in the Seventeenth and Eighteenth Centuries, 18 L.Q. Rev. 280, 285
(1902)).
10
Morris, 1 Carp. P.C. at 34; see also Boulton, 2 H.Bl. at 489 (“Since [Morris
v. Bramson], it has been the generally received opinion in Westminster Hall, that a
patent for an addition is good.”).

2007-1130 7
applied to tangible “new manufactures” (such as machines or compositions of matter), it

also appeared to allow patenting of manufacturing processes as the “working or making

of any manner of new manufactures.” Thus, under the Statute of Monopolies patents

could be had on the “working or making of any manner of new manufactures.”

Numerous method patents had issued by 1793, including James Watt’s famous 1769

patent on a “[m]ethod of diminishing the consumption of fuel in [steam]-engines.” 11

However, the English courts in the mid-eighteenth century had not yet resolved whether

processes for manufacturing were themselves patentable under the statute, and as

discussed below, the issue was being actively litigated in the English courts. In the

1793 Act Congress resolved this question by including the term “art” in the statute,

adopting the practice of the English law officers and the views of those in England who

favored process patents.

II

The question remains as to what processes were considered to be patentable in

England at the time of the 1793 Act. Examination of the relevant sources leads to the

conclusion that the method Bilski seeks to claim would not have been considered

patentable subject matter as a process under the English statute.

A

First, the language of the Statute of Monopolies—“working or making of any

manner of new manufactures”—suggests that only processes that related to

“manufactures” (including machines or compositions of matter) could be patented.

11
Walterscheid, supra n.9 at 355-56 (emphasis added); see also Boulton, 2
H. Bl. at 494-95 (1795) (noting that many method patents had issued).

2007-1130 8
 Second, the English patent practice before and contemporaneous with the 1793

Act confirms the notion that patentable subject matter was limited by the term

“manufacture” in the Statute of Monopolies and required a relation to the other

categories of patentable subject matter. The organization of human activity was not

within its bounds. Rather, the patents registered in England under the Statute of

Monopolies before 1793 were limited to articles of manufacture, machines for

manufacturing, compositions of matter, and related processes. A complete list of such

patents (with a few missing patents from the 17th century) was published in the mid-

1800s by Bennet Woodcroft, the first head of the English Patent Office. 12

Representative examples of patented processes at the time include: “Method of making

a more easy and perfect division in stocking frame-work manufactures,” No. 1417 to

John Webb (1784); “Making and preparing potashes and pearl-ashes of materials not

before used for the purpose,” No. 1223 to Richard Shannon (1779); “Making salt from

sea-water or brine, by steam,” No. 1006 to Daniel Scott (1772); “Milling raw hides and

skins so as to be equally good for leather as if tanned,” No. 893 to George Merchant

(1768); “Making salt, and removing the corrosive nature of the same, by a separate

preparation of the brine,” No. 416 to George Campbell (1717); and “Making good and

merchantable tough iron . . . with one-fifth of the expense of charcoal as now used,” No.

113 to Sir Phillibert Vernatt (1637).

Nothing in Woodcroft’s list suggests that any of these hundreds of patents was

on a method for organizing human activity, save for one aberrational patent discussed

12
Bennet Woodcroft, Alphabetical Index of Patentees of Inventions, from
March 2, 1617 (14 James I) to October 1, 1852 (16 Victoriae) (2d ed. 1857)).

2007-1130 9
below. Rather, the established practice reflects the understanding that only processes

related to manufacturing or “manufactures” were within the statute. The English cases

before 1793 recognized that the practice followed in issuing patents was directly

relevant to the construction of the statute. See, e.g., Morris, 1 Carp. P.C. at 34

(declining to read the statute in such a way that “would go to repeal almost every patent

that was ever granted”).

Third, nearly contemporaneous English cases following shortly after the 1793 Act

lend further insight into what processes were thought to be patentable under the English

practice at the time the statute was enacted. Although the issue of the validity of

process patents had not conclusively been settled in the English common law before

1793, the question was brought before the courts in the landmark case of Boulton v.

Bull, 2 H. Bl. 463, 465 (C.P. 1795), which involved James Watt’s patent for a “method of

lessening the consumption of steam, and consequently fuel in [steam] engines.” 13 In

1795, the court rendered a split decision, with two judges on each side. Boulton, 2 H.

Bl. at 463 (1795). Those who viewed process patents as invalid, as did Justice Buller,

urged that a method was merely an unpatentable principle: “A patent must be for some

new production from [elements of nature], and not for the elements themselves.” Id. at

485. He thought “it impossible to support a patent for a method only, without having

carried it into effect and produced some new substance.” Id. at 486. Justice Health

similarly found that the “new invented method for lessening the consumption of steam

13
The Supreme Court has in several opinions noted Boulton v. Bull in
connection with its consideration of English patent practice. See, e.g., Markman v.
Westview Instruments, Inc., 517 U.S. 370 , 381 n.6 (1996); Evans v. Eaton, 20 U.S. (7
Wheat.) 356, 388 n.2-3 (1822).

2007-1130 10
and fuel in [steam] engines” (i.e., the Watt patent), being neither “machinery” nor a

“substance[] (such as medicine[]) formed by chemical and other processes,” was not

within the Statute of Monopolies. Id. at 481-82. In contrast, Lord Chief Justice Eyres,

who believed processes had long been a valid subject of patents, urged that “two-thirds,

I believe I might say three-fourths, of all patents granted since the statute [of

Monopolies] passed, are for methods of operating and of manufacturing . . . .” Id. at

494-95 (emphasis added). He agreed that “[u]ndoubtedly there can be no patent for a

mere principle; but for a principle so far embodied and connected with corporeal

substances . . . I think there may be a patent.” Id. at 495 (emphasis added). Justice

Rooke also noted that Watt’s method was within the statute because it was connected

with machinery: “What method can there be of saving steam or fuel in engines, but by

some variation in the construction of them?” Id. at 478. The Justices who believed

process patents were valid spoke in terms of manufacturing, machines, and

compositions of matter, because the processes they believed fell within the statute were

processes that “embodied and connected with corporeal substances.” Id. at 495.

In 1799, on appeal from another case involving the same Watt patent, the validity

of such process patents were upheld. Hornblower v. Boulton (K.B. 1799), 8 T.R. 95.

There, Chief Justice Lord Kenyon stated that “it evidently appears that the patentee

claims a monopoly for an engine or machine, composed of material parts, which are to

produce the effect described; and that the mode of producing this is so described, as to

enable mechanics to produce it. . . . I have no doubt in saying, that this is a patent for a

manufacture, which I understand to be something made by the hands of man.” Id. at

99. Justice Grose agreed, finding that “Mr. Watt had invented a method of lessening

2007-1130 11
the consumption of steam and fuel in [steam] engines”, and this was “not a patent for a

mere principle, but for the working and making of a new manufacture within the words

and meaning of the statute.” Id. at 101-02. He further noted, however, that “This

method . . . if not effected or accompanied by a manufacture, I should hardly consider

as within the [statute].” Id. at 102-03 (emphasis added). Justice Lawrence similarly

found such process patents to be permissible: “Engine and method mean the same

thing, and may be the subject of a patent. ‘Method,’ properly speaking, is only placing

several things and performing several operations in the most convenient order . . . .” Id.

at 106.

There is no suggestion in any of this early consideration of process patents that

processes for organizing human activity were or ever had been patentable. Rather, the

uniform assumption was that the only processes that were patentable were processes

for using or creating manufactures, machines, and compositions of matter.

B

The dissenters here, by implication at least, appear to assume that this

consistent English practice should somehow be ignored in interpreting the current

statute because of technological change. 14 There are several responses to this.

The first of these is that the Supreme Court has made clear that when Congress

intends to codify existing law, as was the case with the 1793 statute, the law must be

interpreted in light of the practice at the time of codification. In Schmuck v. United

2007-1130 12
States, 489 U.S. 705, 718-19 (1989), for example, the Court considered the proper

interpretation of Rule 31(c) of the Federal Rules of Criminal Procedure. The rule,

“which ha[d] not been amended since its adoption in 1944,” was a restatement of an

1872 Act “codif[ying] the common law for federal criminal trials.” Because of this fact,

the Court found that the “prevailing practice at the time of the Rule’s promulgation

informs our understanding of its terms.” Id.; see also, e.g., Eldred v. Ashcroft, 537 U.S.

186, 200 n.5 (2003) (considering the English practice at the time of the enactment of the

1790 copyright act); Tome v. United States, 513 U.S. 150, 159-60, 166 (1995) (looking

to practice and noting that “a majority of common-law courts were performing [a task

required by the common law] for well over a century” in interpreting a Federal Rule of

Evidence that “was intended to carry over the common-law”); Harper & Row Publishers,

Inc. v. Nation Enters., 471 U.S. 539, 549-554 (1985) (relying on the history and practice

of copyright fair-use when statutory provision reflected the “intent of Congress to codify

the common-law doctrine”); Sprague v. Ticonic Nat’l Bank, 307 U.S. 161, 164-65 (1939)

(considering the English practice “which theretofore had been evolved in the English

Court of Chancery” at the time of the 1789 Judiciary Act in determining availability of

costs under equity jurisdiction).

14
See, e.g., Rader, J., dissenting op. at 1 (“[T]his court ties our patent
system to dicta from an industrial age decades removed from the bleeding edge.”); id.
(“[T]his court . . . links patent eligibility to the age of iron and steel at a time of subatomic
particles and terabytes . . . .”); Newman, J., dissenting op. at 5 (“[T]his court now adopts
a redefinition of ‘process’ in Section 101 that excludes forms of information-based and
software-implemented inventions arising from new technological capabilities . . . .”).

2007-1130 13
 Second, the Supreme Court language upon which the dissents rely 15 offers no

warrant for rewriting the 1793 Act. To be sure, Congress intended the courts to have

some latitude in interpreting § 101 to cover emerging technologies, Chakrabarty, 447

U.S. at 316, and the categorical terms chosen are sufficiently broad to encompass a

wide range of new technologies. But there is no evidence that Congress intended to

confer upon the courts latitude to extend the categories of patentable subject matter in a

significant way. To the contrary, the Supreme Court made clear that “Congress has

performed its constitutional role in defining patentable subject matter in § 101; we

perform ours in construing the language Congress has employed. In so doing, our

obligation is to take statutes as we find them, guided, if ambiguity appears, by the

legislative history and statutory purpose.” Id. at 315. In Benson, the Court rejected the

argument that its decision would “freeze process patents to old technologies, leaving no

room for the revelations of the new, onrushing technology.” Gottschalk v. Benson, 409

U.S. 63, 71 (1972). Instead, the Court explained that it “may be that the patent laws

should be extended to cover [such onrushing technology], a policy matter to which we

are not competent to speak” but that “considered action by the Congress is needed.” Id.

at 72-73.

Third, we are not dealing here with a type of subject matter unknown in 1793.

One commentator has noted:

15
See, e.g., Newman, J., dissenting op. at 10 (“‘[C]ourts should not read into
the patent laws limitations and conditions which the legislature has not expressed.’”
(quoting Diehr, 450 U.S. at 182)); Rader, J., dissenting op. at 3 (same).

2007-1130 14
 The absence of business method patents cannot be explained by
an absence of entrepreneurial creativity in Great Britain during the century
before the American Revolution. On the contrary, 1720 is widely hailed as
the beginning of a new era in English public finance and the beginning of
major innovations in business organization.

Malla Pollack, The Multiple Unconstitutionality of Business Method Patents, 28 Rutgers

Computer & Tech. L.J. 61, 96 (2002) (footnotes omitted). 16 In the hundreds of patents

in Woodcroft’s exhaustive list of English patents granted from 1612 to 1793, there

appears to be only a single patent akin to the type of method Bilski seeks to claim. That

sole exception was a patent granted to John Knox in 1778 on a “Plan for assurances on

lives of persons from 10 to 80 years of age.” 17 Later commentators have viewed this

single patent as clearly contrary to the Statute of Monopolies:

Such protection of an idea should be impossible . . . . It is difficult to
understand how Knox’s plan for insuring lives could be regarded as ‘a new
manner of manufacture’; perhaps the Law Officer was in a very good
humour that day, or perhaps he had forgotten the wording of the statute;
most likely he was concerned only with the promised ‘very considerable
Consumption of [Revenue] Stamps’ which, Knox declared, would
‘contribute to the increase of the Public Revenues.’

Renn, supra n.16 at 285. There is no indication that Knox’s patent was ever enforced or

its validity tested, or that this example led to other patents or efforts to patent similar

activities. But the existence of the Knox patent suggests that as of 1793 the potential

advantage of patenting such activities was well-understood.

In short, the need to accommodate technological change in no way suggests that

16
Similarly, another commentator states: “it might be wondered why none of the
many ingenious schemes of insurance has ever been protected by patenting it.” D.F.
Renn, John Knox’s Plan for Insuring Lives: A Patent of Invention in 1778, 101 J. Inst.
Actuaries 285 (1974), available at http://www.actuaries.org.uk/__data/assets/
pdf_file/0006/25278/0285-0289.pdf (last visited Oct. 3, 2008).

2007-1130 15
the judiciary is charged with rewriting the statute to include methods for organizing

human activity that do not involve manufactures, machines, or compositions of matter.

C

Since the 1793 statute was reenacted in 1952, it is finally important also to

inquire whether between 1793 and 1952 the U.S. Patent Office and the courts in this

country had departed from the English practice and allowed patents such as those

sought by Bilski. In fact, the U.S. Patent Office operating under the 1793 Act hewed

closely to the original understanding of the statute. As in the English practice of the

time, there is no evidence that patents were granted under the 1793 Act on methods of

organizing human activity not involving manufactures, machines or the creation of

compositions of matter. The amicus briefs have addressed the early American practice,

and some of them claim that human activity patents were allowed in the early period.

To the contrary, the patents cited in the briefs are plainly distinguishable.

The earliest claimed human activity patent cited in the briefs issued in 1840,

entitled “Improvement in the Mathematical Operation of Drawing Lottery-Schemes.” Br.

of Amicus Curiae Regulatory Datacorp 23 n.54. But that patent is fundamentally unlike

the Bilski claim, since it does not claim a method of organizing human activity not

involving manufactures, machines or the creation of compositions of matter. See U.S.

Patent No. 1700 (issued July 18, 1840). Rather, it is directed to a scheme of combining

different combinations of numbers onto a large number of physical lottery tickets (i.e., a

17
Woodcroft, supra n.12 at 324.

2007-1130 16
method for manufacturing lottery tickets). Id. col.1. The other early-issued patents cited

in the amicus briefs are similarly distinguishable. 18

Likewise, Supreme Court decisions before the 1952 Patent Act assumed that the

only processes that were patentable were those involving other types of patentable

subject matter. In later cases the Supreme Court has recognized that these cases set

forth the standard for process patents in the pre-1952 period. Diehr, 450 U.S. at 182-

84; Gottschalk, 409 U.S. at 69-70. The leading case is Corning v. Burden, 56 U.S. 252

(1853). There, the Supreme Court discussed the patentability of processes:

A process, eo nomine, is not made the subject of a patent in our act
of Congress. It is included under the general term ‘useful art.’ An art may
require one or more processes or machines in order to produce a certain
result or manufacture. The term machine includes every mechanical
device or combination of mechanical powers and devices to perform some
function and produce a certain effect or result. But where the result or
effect is produced by chemical action, by the operation or application of
some element or power of nature, or of one substance to another, such
modes, methods, or operations, are called ‘processes.’ A new process is
usually the result of discovery; a machine, of invention. The arts of
tanning, dyeing, making water-proof cloth, vulcanizing India rubber,
smelting ores, and numerous others are usually carried on by processes,
as distinguished from machines. . . . It is for the discovery or invention of

18
See, e.g., Complemental Accident Insurance Policy, U.S. Patent No.
389,818 (issued Sept. 18, 1888) (claiming a “complemental insurance policy” as an
apparatus consisting of two separate cards secured together); Insurance System, U.S.
Patent No. 853,852 (issued May 14, 1907) (claiming a “two-part insurance policy” as “an
article of manufacture”).
A number of the amici also refer to the discussion and the patents cited in “A
USPTO White Paper” (the “White Paper”) to establish the historical foundation of
business method patents. See, e.g., Br. of Amicus Curiae Accenture 14-15 n. 11. As
Judge Mayer notes, dissenting op. at 7 n.4, the White Paper does not show this
proposition. As the White Paper itself recognizes, the early financial patents it
discusses were largely mechanical products and methods related to financial paper, not
methods for organizing human activity. White Paper at 2. Thus, while the White Paper
shows that inventions in the business realm of finance and management historically
enjoyed patent protection, it does little to establish that business methods directed to
the organization of human activity not involving manufactures, machines or the creation
of compositions of matter were similarly patentable.

2007-1130 17
 some practicable method or means of producing a beneficial result or
effect that a patent is granted, and not for the result or effect itself. It is
when the term process is used to represent the means or method of
producing a result that it is patentable, and it will include all methods or
means which are not effected by mechanism or mechanical combinations.

Id. at 267-68 (emphases added). In Cochrane v. Deener, the Court clarified its

understanding of a patentable “process”:

That a process may be patentable, irrespective of the particular
form of the instrumentalities used, cannot be disputed. . . . A process is a
mode of treatment of certain materials to produce a given result. It is an
act, or a series of acts, performed upon the subject-matter to be
transformed and reduced to a different state or thing. If new and useful, it
is just as patentable as is a piece of machinery. In the language of the
patent law, it is an art. The machinery pointed out as suitable to perform
the process may or may not be new or patentable; whilst the process itself
may be altogether new, and produce an entirely new result. The process
requires that certain things should be done with certain substances, and in
a certain order; but the tools to be used in doing this may be of secondary
consequence.

94 U.S. 780, 787-88 (1876) (emphases added). Finally, in Tilghman v. Proctor, 102

U.S. 707, 722 (1880), the Court noted:

That a patent can be granted for a process there can be no doubt.
The patent law is not confined to new machines and new compositions of
matter, but extends to any new and useful art or manufacture. A
manufacturing process is clearly an art, within the meaning of the law.

(Emphasis added). The Court’s definition of a patentable process was well-accepted

and consistently applied by the courts of appeals. See, e.g., P.E. Sharpless Co. v.

Crawford Farms, 287 F. 655, 658-59 (2nd Cir. 1923); Chicago Sugar-Refining Co. v.

Charles Pope Glucose Co., 84 F. 977, 982 (7th Cir. 1898).

Finally, nothing in the legislative history of the 1952 Act suggests that Congress

intended to enlarge the category of patentable subject matter to include patents such as

the method Bilski attempts to claim. As discussed above, the only change made by the

2007-1130 18
1952 Act was in replacing the word “art” with the word “process.” The Supreme Court

has already concluded that this change did not alter the substantive understanding of

the statute. See Diehr, 450 U.S. at 182 (“[A] process has historically enjoyed patent

protection because it was considered a form of ‘art’ as that term was used in the 1793

Act.”).

The House Report accompanying the 1952 bill includes the now-famous

reference to “anything under the sun made by man”:

A person may have “invented” a machine or a manufacture, which may
include anything under the sun made by man, but it is not necessarily
patentable under section 101 unless the conditions of the title are fulfilled.

H.R. 1923 at 7. Although this passage has been used by our court in past cases to

justify a broad interpretation of patentable subject matter, I agree with Judge Mayer that,

when read in context, the statement undercuts the notion that Congress intended to

expand the scope of § 101. See Mayer, J., dissenting op. at 5-6. It refers to things

“made by man,” not to methods of organizing human activity. In this respect, the

language is reminiscent of the 1799 use of the phrase “something made by the hands of

man” by Chief Justice Lord Kenyon as a limitation on patentable subject matter under

the Statute of Monopolies. The idea that an invention must be “made by man” was

used to distinguish “a philosophical principle only, neither organized or capable of being

organized” from a patentable manufacture. Hornblower, 8 T.R. at 98. Lord Kenyon

held that the patent before him was not based on a mere principle, but was rather “a

patent for a manufacture, which I understand to be something made by the hands of

man.” Id. at 98 (emphases added); accord American Fruit Growers v. Brogdex Co., 283

2007-1130 19
U.S. 1, 11 (1931) (giving “anything made for use from raw or prepared materials” as one

definition of “manufacture”).

In short, the history of § 101 fully supports the majority’s holding that Bilski’s

claim does not recite patentable subject matter. Our decision does not reflect

“legislative” work, but rather careful and respectful adherence to the Congressional

purpose.

2007-1130 20
 United States Court of Appeals for the Federal Circuit

2007-1130
(Serial No. 08/883,892)

IN RE BERNARD L. BILSKI
and RAND A. WARSAW

Appeal from the United States Patent and Trademark Office, Board of Patent Appeals
and Interferences.

NEWMAN, Circuit Judge, dissenting.

The court today acts en banc to impose a new and far-reaching restriction on the

kinds of inventions that are eligible to participate in the patent system. The court

achieves this result by redefining the word “process” in the patent statute, to exclude all

processes that do not transform physical matter or that are not performed by machines.

The court thus excludes many of the kinds of inventions that apply today’s electronic

and photonic technologies, as well as other processes that handle data and information

in novel ways. Such processes have long been patent eligible, and contribute to the

vigor and variety of today’s Information Age. This exclusion of process inventions is

contrary to statute, contrary to precedent, and a negation of the constitutional mandate.

Its impact on the future, as well as on the thousands of patents already granted, is

unknown.

This exclusion is imposed at the threshold, before it is determined whether the

excluded process is new, non-obvious, enabled, described, particularly claimed, etc.;

that is, before the new process is examined for patentability. For example, we do not
know whether the Bilski process would be found patentable under the statutory criteria,

for they were never applied.

The innovations of the “knowledge economy”—of “digital prosperity”—have been

dominant contributors to today’s economic growth and societal change. Revision of the

commercial structure affecting major aspects of today’s industry should be approached

with care, for there has been significant reliance on the law as it has existed, as many

amici curiae pointed out. Indeed, the full reach of today’s change of law is not clear,

and the majority opinion states that many existing situations may require reassessment

under the new criteria.

Uncertainty is the enemy of innovation. These new uncertainties not only

diminish the incentives available to new enterprise, but disrupt the settled expectations

of those who relied on the law as it existed. I respectfully dissent.

DISCUSSION

The court’s exclusion of specified process inventions from access to the patent

system is achieved by redefining the word “process” in the patent statute. However, the

court’s redefinition is contrary to statute and to explicit rulings of the Supreme Court and

this court. I start with the statute:

Section 101 is the statement of statutory eligibility

From the first United States patent act in 1790, the subject matter of the “useful

arts” has been stated broadly, lest advance restraints inhibit the unknown future.

The nature of patent-eligible subject matter has received judicial attention over the

years, as new issues arose with advances in science and technology. The Supreme

Court has consistently confirmed the constitutional and legislative purpose of providing

2007-1130 2
a broadly applicable incentive to commerce and creativity, through this system of limited

exclusivity. Concurrently, the Court early explained the limits of patentable subject

matter, in that “fundamental truths” were not intended to be included in a system of

exclusive rights, for they are the general foundations of knowledge. Thus laws of

nature, natural phenomena, and abstract ideas are not subject to patenting. Several

rulings of the Court have reviewed patent eligibility in light of these fundamentals.

However, the Court explicitly negated today’s restrictions. My colleagues in the majority

are mistaken in finding that decisions of the Court require the per se limits to patent

eligibility that the Federal Circuit today imposes. The patent statute and the Court’s

decisions neither establish nor support the exclusionary criteria now adopted.

The court today holds that any process that does not transform physical matter or

require performance by machine is not within the definition of “process” in any of the

patent statutes since 1790. All of the statutes contained a broad definition of patent-

eligible subject matter, like that in the current Patent Act of 1952:

35 U.S.C §101 Whoever invents or discovers any new and useful
process, machine, manufacture, or composition of matter, or any new and
useful improvement thereof, may obtain a patent therefor, subject to the
conditions and requirements of this title.

In Diamond v. Diehr, 450 U.S. 175 (1981) the Court explained that Section 101 is not an

independent condition of patentability, but a general statement of subject matter

eligibility. The Court stated:

Section 101, however, is a general statement of the type of subject matter
that is eligible for patent protection “subject to the conditions and
requirements of this title.” Specific conditions for patentability follow and
§102 covers in detail the conditions relating to novelty. The question
therefore of whether a particular invention is novel is “wholly apart from
whether the invention falls in a category of statutory subject matter.”

2007-1130 3
Id. at 189-90 (footnote omitted) (quoting In re Bergy, 596 F.2d 952, 961 (C.C.P.A.

1979)).

“Process” is defined in the 1952 statute as follows:

35 U.S.C. §100(b) The term “process” means process, art or method, and
includes a new use of a known process, machine, manufacture,
composition of matter, or material.

The 1952 Patent Act replaced the word “art” in prior statutes with the word

“process,” while the rest of Section 101 was unchanged from earlier statutes.

The legislative history for the 1952 Act explained that “art” had been “interpreted

by courts to be practically synonymous with process or method.” S. Rep. No. 82-

1979 (1952), reprinted in 1952 U.S.C.C.A.N. 2394, 2398, 2409-10. In Diehr the

Court explained that a process “has historically enjoyed patent protection

because it was considered a form of ‘art’ as that term was used in the 1793 Act.”

450 U.S. at 182.

The definition of “process” provided at 35 U.S.C. §100(b) is not “unhelpful,” as

this court now states, maj. op. at 6 n.3, but rather points up the errors in the court’s new

statutory interpretation. Section 100(b) incorporates the prior usage “art” and the term

“method,” and places no restriction on the definition. This court’s redefinition of

“process” as limiting access to the patent system to those processes that use specific

machinery or that transform matter, is contrary to two centuries of statutory definition.

The breadth of Section 101 and its predecessor provisions reflects the legislative

intention to accommodate not only known fields of creativity, but also the unknown

future. The Court has consistently refrained from imposing unwarranted restrictions on

statutory eligibility, and for computer-implemented processes the Court has explicitly

2007-1130 4
rejected the direction now taken. Nonetheless, this court now adopts a redefinition of

“process” in Section 101 that excludes forms of information-based and software-

implemented inventions arising from new technological capabilities, stating that this

result is required by the Court’s computer-related cases, starting with Gottschalk v.

Benson, 409 U.S. 63 (1972). However, the Court in Benson rejected the restriction that

is imposed today:

This court’s new definition of “process” was rejected in Gottschalk v. Benson

In Benson the claimed invention was a mathematical process for converting

binary-coded decimal numerals into pure binary numbers. The Court explained that a

mathematical formula unlimited to a specific use was simply an abstract idea of the

nature of “fundamental truths,” “phenomena of nature,” and “abstract intellectual

concepts,” as have traditionally been outside of patent systems. 409 U.S. at 67.

However, the Court explicitly declined to limit patent-eligible processes in the manner

now adopted by this court, stating:

It is argued that a process patent must either be tied to a particular
machine or apparatus or must operate to change articles or materials to a
“different state or thing.” We do not hold that no process patent could ever
qualify if it did not meet the requirements of our prior precedents. It is said
that the decision precludes a patent for any program servicing a computer.
We do not so hold.

Id. at 71. The Court explained that “the requirements of our prior precedents” did not

preclude patents on computer programs, despite the statement drawn from Cochrane v.

Deener, 94 U.S. 780, 787-88 (1876), that “[t]ransformation and reduction of an article ‘to

a different state or thing’ is the clue to the patentability of a process claim that does not

include particular machines.” Benson, 409 U.S. at 70. Although this same statement is

now relied upon by this court as requiring its present ruling, maj. op at 13 & n.11, the

2007-1130 5
Court in Benson was explicit that: “We do not hold that no process patent could ever

qualify if it did not meet [the Court’s] prior precedents.” The Court recognized that

Cochrane’s statement was made in the context of a mechanical process and a past era,

and protested:

It is said we freeze process patents to old technologies, leaving no room
for the revelations of the new, onrushing technology. Such is not our
purpose.

Benson, 409 U.S. at 71. Instead, the Court made clear that it was not barring patents

on computer programs, and rejected the “argu[ment] that a process patent must either

be tied to a particular machine or apparatus or must operate to change articles or

materials to a ‘different state or thing’” in order to satisfy Section 101. Id. Although my

colleagues now describe these statements as “equivocal,” maj. op. at 14, there is

nothing equivocal about “We do not so hold.” Benson, 409 U.S. at 71. Nonetheless,

this court now so holds.

In Parker v. Flook the Court again rejected today’s restrictions

The eligibility of mathematical processes next reached the Court in Parker v.

Flook, 437 U.S. 584 (1978), where the Court held that the “process” category of Section

101 was not met by a claim to a mathematical formula for calculation of alarm limits for

use in connection with catalytic conversion of hydrocarbons and, as in Benson, the

claim was essentially for the mathematical formula. The Court later summarized its

Flook holding, stating in Diamond v.Diehr that:

The [Flook] application, however, did not purport to explain how these
other variables were to be determined, nor did it purport “to contain any
disclosure relating to the chemical processes at work, the monitoring of
the process variables, nor the means of setting off an alarm or adjusting
an alarm system. All that it provides is a formula for computing an
updated alarm limit.”

2007-1130 6
Diehr, 450 U.S. at 186-87 (quoting Flook, 437 U.S. at 586).

The Court explained in Flook that a field-of-use restriction to catalytic conversion

did not distinguish Flook’s mathematical process from that in Benson. However, the

Court reiterated that patent eligibility of computer-directed processes is not controlled by

the “qualifications of our earlier precedents,” again negating any limiting effect of the

usages of the past, on which this court now places heavy reliance. The Court stated:

The statutory definition of “process” is broad. An argument can be made,
however, that this Court has only recognized a process as within the
statutory definition when it either was tied to a particular apparatus or
operated to change materials to a “different state or thing.” As in Benson,
we assume that a valid process patent may issue even if it does not meet
one of these qualifications of our earlier precedents.[ 1 ]

Flook, 437 U.S. at 589 n.9 (quoting Cochrane, 94 U.S. at 787). This statement directly

contravenes this court’s new requirement that all processes must meet the court’s

“machine-or-transformation test” or be barred from access to the patent system.

The Court in Flook discussed that abstractions and fundamental principles have

never been subject to patenting, but recognized the “unclear line” between an abstract

principle and the application of such principle:

The line between a patentable “process” and an unpatentable “principle” is
not always clear. Both are “conception[s] of the mind, seen only by [their]
effects when being executed or performed.”

Flook, 437 U.S. at 589 (alterations in original) (quoting Tilghman v. Proctor, 102 U.S.

707, 728 (1880)).

1
My colleagues cite only part of this quotation as the Court’s holding in
Flook, maj. op. at 13, ignoring the qualifying words “[a]n argument can be made” as well
as the next sentence clarifying that this argument was rejected by the Court in Benson
and is now again rejected in Flook.

2007-1130 7
 The decision in Flook has been recognized as a step in the evolution of the

Court’s thinking about computers. See Arrhythmia Res. Tech., Inc. v. Corazonix Corp.,

958 F.2d 1053, 1057 n.4 (Fed. Cir. 1992) (“it appears to be generally agreed that these

decisions represent evolving views of the Court”) (citing R.L. Gable & J.B. Leaheey, The

Strength of Patent Protection for Computer Products, 17 Rutgers Computer & Tech. L.J.

87 (1991); D. Chisum, The Patentability of Algorithms, 47 U. Pitt. L. Rev. 959 (1986)).

That Flook does not support today’s per se exclusion of forms of process inventions

from access to the patent system is reinforced in the next Section 101 case decided by

the Court:

In Diamond v. Chakrabarty the Court again rejected per se exclusions of subject
matter from Section 101

In Diamond v. Chakrabarty, 447 U.S. 303 (1980), the scope of Section 101 was

challenged as applied to the new fields of biotechnology and genetic engineering, with

respect to the patent eligibility of a new bacterial “life form.” The Court explained the

reason for the broad terms of Section 101:

The subject-matter provisions of the patent law have been cast in broad
terms to fulfill the constitutional and statutory goal of promoting “the
Progress of Science and the useful Arts” with all that means for the social
and economic benefits envisioned by Jefferson. Broad general language
is not necessarily ambiguous when congressional objectives require broad
terms.

Id. at 315 (quoting U.S. Const., art. I, §8). The Court referred to the use of “any” in

Section 101 (“Whoever invents or discovers any new and useful process . . . or any new

and useful improvement thereof, may obtain a patent therefor, subject to the conditions

and requirements of this title”), and reiterated that the statutory language shows that

Congress “plainly contemplated that the patent laws would be given wide scope.” Id. at

2007-1130 8
308. The Court referred to the legislative intent to include within the scope of Section

101 “anything under the sun that is made by man,” id. at 309 (citing S. Rep. 82-1979, at

5; H.R. Rep. 82-1923, at 6 (1952)), and stated that the unforeseeable future should not

be inhibited by judicial restriction of the “broad general language” of Section 101:

A rule that unanticipated inventions are without protection would conflict
with the core concept of the patent law that anticipation undermines
patentability. Mr. Justice Douglas reminded that the inventions most
benefiting mankind are those that push back the frontiers of chemistry,
physics, and the like. Congress employed broad general language in
drafting §101 precisely because such inventions are often unforeseeable.

Id. at 315-16 (citations and internal quotation marks omitted). The Court emphasized

that its precedents did not alter this understanding of Section 101’s breadth, stating that

“Flook did not announce a new principle that inventions in areas not contemplated by

Congress when the patent laws were enacted are unpatentable per se.” Id. at 315.

Whether the applications of physics and chemistry that are manifested in

advances in computer hardware and software were more or less foreseeable than the

advances in biology and biotechnology is debatable, but it is not debatable that these

fields of endeavor have become primary contributors to today’s economy and culture,

as well as offering an untold potential for future advances. My colleagues offer no

reason now to adopt a policy of exclusion of the unknown future from the subject matter

now embraced in Section 101.

Soon after Chakrabarty was decided, the Court returned to patentability issues

arising from computer capabilities:

In Diamond v. Diehr the Court directly held that computer-implemented processes
are included in Section 101

2007-1130 9
 The invention presented to the Court in Diehr was a “physical and chemical

process for molding precision synthetic rubber products” where the process steps

included using a mathematical formula. The Court held that the invention fit the

“process” category of Section 101 although mathematical calculations were involved,

and repeated its observation in Chakrabarty that “courts should not read into the patent

laws limitations and conditions which the legislature has not expressed.” Diehr, 450

U.S. at 182 (internal quotation marks omitted) (citing Chakrabarty, 447 U.S. at 308).

The Court distinguished a claim that would cover all uses of a mathematical

formula and thus is an abstract construct, as in Benson, from a claim that applies a

mathematical calculation for a specified purpose, as in Diehr. The Court stated that “a

claim drawn to subject matter otherwise statutory does not become nonstatutory simply

because it uses a mathematical formula, computer program, or digital computer,” id. at

187, and explained that the line between statutory and nonstatutory processes depends

on whether the process is directed to a specific purpose, see id. (“It is now

commonplace that an application of a law of nature or mathematical formula to a known

structure or process may well be deserving of patent protection.” (emphasis in

original)). The Court clarified that Flook did not hold that claims may be dissected into

old and new parts to assess their patent eligibility. Id. at 189 n.12.

However, the Court did not propose the “machine-or-transformation” test that this

court now insists was “enunciated” in Diehr as a specific limit to Section 101. Maj. op.

at 10. In Diehr there was no issue of machine or transformation, for the Diehr process

both employed a machine and produced a chemical transformation: the process was

conducted in “an openable rubber molding press,” and it cured the rubber. In

2007-1130 10
discussing the known mathematical formula used by Diehr to calculate the relation

between temperature and the rate of a chemical reaction, the Court recited the

traditional exceptions of “laws of nature, natural phenomena, and abstract ideas,” 450

U.S. at 185, and explained that the entirety of the process must be considered, not an

individual mathematical step.

The Court characterized the holdings in Benson and Flook as standing for no

more than the continued relevance of these “long-established” judicial exclusions, id.,

and repeated that a practical application of pure science or mathematics may be

patentable, citing Mackay Radio & Telegraph Co. v. Radio Corp. of America, 306 U.S.

86, 94 (1939) (“While a scientific truth, or the mathematical expression of it, is not a

patentable invention, a novel and useful structure created with the aid of knowledge and

scientific truth may be.”). The Court explained that the presence of a mathematical

formula does not preclude patentability when the structure or process is performing a

function within the scope of the patent system, stating:

[W]hen a claim containing a mathematical formula implements or applies
that formula in a structure or process which, when considered as a whole,
is performing a function which the patent laws were designed to protect
(e.g., transforming or reducing an article to a different state or thing), then
the claim satisfies the requirements of §101.

450 U.S. at 192. This statement’s parenthetical “e.g.” is relied on by the majority for its

statement that Diehr requires today’s “machine-or-transformation” test. However, this

“e.g.” does not purport to state the only “function which the patent laws were designed

to protect.” Id. This “e.g.” indeed describes the process in Diehr, but it does not

exclude all other processes from access to patenting.

2007-1130 11
 It cannot be inferred that the Court intended, by this “e.g.” parenthetical, to

require the far-reaching exclusions now attributed to it. To the contrary, the Court in

Diehr was explicit that “an application of a law of nature or mathematical formula” may

merit patent protection, 450 U.S. at 187 (emphasis in original), and that the claimed

process must be considered as a whole, id. at 188. The Court recognized that a

process claim may combine steps that were separately known, and that abstract ideas

such as mathematical formulae may be combined with other steps to produce a

patentable process. Id. at 187. The steps are not to be “dissect[ed]” into new and old

steps; it is the entire process that frames the Section 101 inquiry. Id. at 188.

The Diehr Court did not hold, as the majority opinion states, that transformation

of physical state is a requirement of eligibility set by Section 101 unless the process is

performed by a machine. It cannot be inferred that the Court silently imposed such a

rule. See maj. op. at 14 (relying on lack of repetition in Diehr of the Benson and Flook

disclaimers of requiring machine or transformation, as an implicit rejection of these

disclaimers and tacit adoption of the requirement). There was no issue in Diehr of the

need for either machine or transformation, for both were undisputedly present in the

process of curing rubber. It cannot be said that the Court “enunciated” today’s

“definitive test” in Diehr. 2

Subsequent Supreme Court authority reinforced the breadth of Section 101

2
Many amici curiae pointed out that the Supreme Court did not adopt the
test that this court now attributes to it. See, e.g., Br. of Amicus Curiae Am. Intellectual
Property Law Ass’n at 18 & n.16; Br. of Amicus Curiae Biotechnology Industry Org. at
17-21; Br. of Amicus Curiae Boston Patent Law Ass’n at 6-8; Br. of Amicus Curiae
Business Software Alliance at 13; Br. of Amicus Curiae Federal Circuit Bar Ass’n at 21;
Br. of Amicus Curiae Regulatory Datacorp, Inc. at 12-13; Br. of Amicus Curiae
Accenture at 16-17; Br. of Amicus Curiae Washington State Patent Law Ass’n at 10-11.

2007-1130 12
 In J.E.M. Ag Supply, Inc. v. Pioneer Hi-Bred International, Inc., 534 U.S. 124

(2001), the Court described Section 101 as a “dynamic provision designed to

encompass new and unforeseen inventions,” id. at 135, that case arising in the context

of eligibility of newly developed plant varieties for patenting. The Court stated: “As in

Chakrabarty, we decline to narrow the reach of §101 where Congress has given us no

indication that it intends this result.” Id. at 145-46. The Court reiterated that “Congress

plainly contemplated that the patent laws would be given wide scope,” id. at 130

(quoting Chakrabarty, 447 U.S. at 308), and that the language of Section 101 is

“extremely broad,” id. This is not language of restriction, and it reflects the statutory

policy and purpose of inclusion, not exclusion, in Section 101.

The Court’s decisions of an earlier age do not support this court’s restrictions of
Section 101

My colleagues also find support for their restrictions on patent-eligible “process”

inventions in the pre-Section 101 decisions O’Reilly v. Morse, 56 U.S. (15 How.) 62

(1853), Cochrane v. Deener, 94 U.S. 780 (1876), and Tilghman v. Proctor, 102 U.S. 707

(1880). Although the Court in Benson and in Flook took care to state that these early

decisions do not require the restrictions that the Court was rejecting, this court now

places heavy reliance on these early decisions, which this court describes as

“consistent with the machine-or-transformation test later articulated in Benson and

reaffirmed in Diehr.” Maj. op. at 12. As I have discussed, no such test was “articulated

in Benson” and “reaffirmed in Diehr.”

However, these early cases do show, contrary to the majority opinion, that a

“process” has always been a distinct category of patentable invention, and not tied to

either apparatus or transformation, as this court now holds. For example, in Tilghman v.

2007-1130 13
Proctor the Court considered a patent on a process for separating fats and oils, and

held that the process was not restricted to any particular apparatus. The Court held that

a process is an independent category of invention, and stated:

That a patent can be granted for a process, there can be no doubt. The
patent law is not confined to new machines and new compositions of
matter, but extends to any new and useful art or manufacture.

102 U.S. at 722; see also Corning v. Burden, 56 U.S. (15 How.) 252, 268 (1853) (“It is

for the discovery or invention of some practical method or means of producing a

beneficial result or effect, that a patent is granted, and not for the result or effect itself.”)

The difference between a process and the other categories of patent-eligible subject

matter does not deprive process inventions of the independent status accorded by

statute, by precedent, and by logic, all of which negate the court’s new rule that a

process must be tied to a particular machine or must transform physical matter.

The majority also relies on O’Reilly v. Morse, citing the Court’s rejection of

Morse’s Claim 8 for “the use of the motive power of the electro or galvanic current,

which I call electromagnetism, however developed, for making or printing intelligible

characters, signs or letters at any distances . . . .” The Court explained:

In fine he claims an exclusive right to use a manner and process which he
has not described and indeed had not invented, and therefore could not
describe when he obtained his patent. The Court is of the opinion that the
claim is too broad, and not warranted by law.

56 U.S. (15 How.) at 113. However, the claims that were directed to the communication

system that was described by Morse were held patentable, although no machine,

transformation, or manufacture was required. See Morse’s Claim 5 (“The system of

signs, consisting of dots and spaces, and horizontal lines, for numerals, letters, words,

or sentences, substantially as herein set forth and illustrated, for telegraphic

2007-1130 14
purposes.”). I cannot discern how the Court’s rejection of Morse’s Claim 8 on what

would now be Section 112 grounds, or the allowance of his other claims, supports this

court’s ruling today. Indeed, Morse’s claim 5, to a system of signs, is no more “tangible”

than the systems held patentable in Alappat and State Street Bank, discussed post and

now cast into doubt, or the Bilski system here held ineligible for access to patenting.

The majority opinion also relies on Cochrane v. Deener, particularly on certain

words quoted in subsequent opinions of the Court. In Cochrane the invention was a

method for bolting flour, described as a series of mechanical steps in the processing of

flour meal. The question before the Court was whether the patented process would be

infringed if the same steps were performed using different machinery. The answer was

“that a process may be patentable, irrespective of the particular form of the

instrumentalities used.” 94 U.S. at 788. The Court stressed the independence of a

process from the tools that perform it:

A process is a mode of treatment of certain materials to produce a given
result. It is an act, or series of acts, performed upon the subject-matter to
be transformed and reduced to a different state or thing. If new and
useful, it is just as patentable as is a piece of machinery. In the language
of the patent law, it is an art. The machinery pointed out as suitable to
perform the process may or may not be new or patentable; whilst the
process itself may be altogether new, and produce an entirely new result.
The process requires that certain things should be done with certain
substances, and in a certain order; but the tools to be used in doing this
may be of secondary consequence.

94 U.S. at 788. The Court did not restrict the kinds of patentable processes; the issue

in Cochrane was whether the process must be tied to the machinery that the patentee

used to perform it.

This court now cites Cochrane’s description of a process as “acts performed

upon subject-matter to be transformed and reduced to a different state or thing,” id., this

2007-1130 15
court stating that unless there is transformation there is no patentable process. That is

not what this passage means. In earlier opinions this court and its predecessor court

stated the correct view of this passage, as has the Supreme Court. The Court of

Customs and Patent Appeals observed:

[This Cochrane passage] has sometimes been misconstrued as a ‘rule’ or
‘definition’ requiring that all processes, to be patentable, must operate
physically on substances. Such a result misapprehends the nature of the
passage quoted as dictum, in its context, and the question being
discussed by the author of the opinion. To deduce such a rule from the
statement would be contrary to its intendment which was not to limit
process patentability but to point out that a process is not limited to the
means used in performing it.

In re Prater, 415 F.2d 1393, 1403 (C.C.P.A. 1969). Again in In re Schrader, 22 F.3d

290, 295 n.12 (Fed. Cir. 1994) this court noted that Cochrane did not limit patent eligible

subject matter to physical transformation, and that transformation of “intangibles” could

qualify for patenting. In AT&T Corp. v. Excel Communications, Inc., 172 F.3d 1352,

1358 (Fed. Cir. 1999), this court described physical transformation as “merely one

example of how a mathematical algorithm may bring about a useful application.”

The Court saw the Cochrane decision in its proper perspective. Both Flook and

Benson rejected the idea that Cochrane imposed the requirement of either specific

machinery or the transformation of matter, as discussed ante. See Flook, 437 U.S. at

588 n.9; Benson, 409 U.S. at 71. Non-transformative processes were not at issue in

either Cochrane or Diehr, and there is no endorsement in Diehr of a “machine-or-

transformation” requirement for patentable processes.

These early cases cannot be held now to require exclusion, from the Section 101

definition of “process,” of all processes that deal with data and information, whose only

2007-1130 16
machinery is electrons, photons, or waves, or whose product is not a transformed

physical substance.

The English Statute of Monopolies and English common law do not limit
“process” in Section 101

I comment on this aspect in view of the proposal in the concurring opinion that

this court’s new two-prong test for Section 101 process inventions was implicit in United

States law starting with the Act of 1790, because of Congress’s knowledge of and

importation of English common law and the English Statute of Monopolies of 1623. The

full history of patent law in England is too ambitious to be achieved within the confines

of Bilski’s appeal, 3 and the concurring opinion’s selective treatment of this history may

propagate misunderstanding.

The concurrence places primary reliance on the Statute of Monopolies, which

was enacted in response to the monarchy’s grant of monopolies “to court favorites in

goods or businesses which had long before been enjoyed by the public.” Graham v.

John Deere Co., 383 U.S. 1, 5 (1966) (citing Peter Meinhardt, Inventions, Patents and

3
Scholarly histories include M. Frumkin, The Origin of Patents, 27 J.P.O.S.
143 (1945); E. Wyndham Hulme, Privy Council Law and Practice of Letters Patent for
Invention from the Restoration to 1794, 33 L.Q. Rev. 63 (Part I), 180 (Part II) (1917);
Hulme, On the History of Patent Law in the Seventeenth and Eighteenth Centuries, 18
L.Q. Rev. 280 (1902); Hulme, The History of the Patent System Under the Prerogative
and at Common Law, 12 L.Q. Rev. 141 (1896); Ramon A. Klitzke, Historical
Background of the English Patent Law, 41 J.P.O.S 615 (1959); Christine MacLeod,
Inventing the Industrial Revolution: The English Patent System 1660-1800 (1988);
Frank D. Prager, Historic Background and Foundation of American Patent Law, 5 Am. J.
Legal Hist. 309 (1961); Brad Sherman & Lionel Bently, The Making of Modern
Intellectual Property Law: The British Experience , 1760-1911 (1999); Edward C.
Walterscheid, The Early Evolution of the United States Patent Law: Antecedents,
printed serially at J. Pat. & Trademark Off. Soc’y (“J.P.T.O.S.”) 76:697 (1994) (Part 1);
76:849 (1994) (Part 2); 77:771, 847 (1995) (Part 3); 78:77 (1996) (Part 4); 78:615
(1996) (Part 5, part I); and 78:665 (1996) (Part 5, part II) (hereinafter “Early Evolution”);
and Edward C. Walterscheid, To Promote the Progress of Useful Arts: American Patent
Law and Administration, 1798-1836 (1998).

2007-1130 17
Monopoly 30-35 (1946)). The Statute of Monopolies outlawed these “odious

monopolies” or favors of the Crown, but, contrary to the concurring opinion, the Statute

had nothing whatever to do with narrowing or eliminating categories of inventive subject

matter eligible for a British patent. See Prager, Historical Background and Foundation

of American Patent Law, 5 Am. J. Legal Hist. at 313 (“The statute [of Monopolies] said

nothing about meritorious functions of patents, nothing about patent disclosures, and

nothing about patent procedures; it was only directed against patent abuses.”).

Patents for inventions had been granted by the Crown long before 1623. See

Hulme, The History of the Patent System Under the Prerogative and at Common Law,

12 L.Q. Rev. at 143 (the first patent grant to the “introducer of a newly-invented

process” was in 1440); Klitzke, Historical Background of the English Patent Law, 41

J.P.O.S. at 626-27 (discussing first patents for “invention” in England in the fifteenth

century). That practice was unaffected by the terms of the Statute of Monopolies, which

rendered “utterly void” all “Monopolies and all Commissions, Grants, Licenses, Charters

and Letters Patent” that were directed to “the sole Buying, Selling, Making, Working or

Using any Thing within this Realm,” 21 Jac. 1, c.3, §I (Eng.), but which specifically

excepted Letters Patent for inventions from that exclusion, id. §VI. The only new

limitation on patents for invention was a fourteen-year limit on the term of exclusivity.

See Klitzke, Historical Background of the English Patent Law, 41 J.P.O.S. at 649.

The usage “Letters Patent” described one of the forms of document whereby the

Crown granted various rights, whether the grant was for an odious monopoly that the

Statute of Monopolies eliminated, or for rights to an invention new to England. That

usage was not changed by the Statute of Monopolies. Nor were other aspects of the

2007-1130 18
British practice which differed from that enacted in the United States, particularly the

aspect whereby a British patent could be granted to a person who imported something

that was new to England, whether or not the import was previously known or the

importer was the inventor thereof. In England, “[t]he rights of the inventor are derived

from those of the importer, and not vice versa as is commonly supposed.” Hulme, The

History of the Patent System Under the Prerogative and at Common Law, 12 L.Q.R. at

152; see also MacLeod, Inventing the Industrial Revolution 13 (“The rights of the first

inventor were understood to derive from those of the first importer of the invention.”).

In contrast, in the United States the patent right has never been predicated upon

importation, and has never been limited to “manufactures.” See, e.g., Walterscheid, To

Promote the Progress of Useful Arts 93, 137-38, 224; see also Prager, Historic

Background and Foundation of American Patent Law, 5 Am. J. Legal Hist. at 309 (“The

American Revolution destroyed many of the ancient customs; it brought a sweeping

reorientation of patent law, with new forms, new rules, new concepts, and new ideals.”).

The differences between the American and English patent law at this nation’s founding

were marked, and English judicial decisions interpreting the English statute are of

limited use in interpreting the United States statute. In all events, no English decision

supports this court’s new restrictive definition of “process.”

The concurrence proposes that the Statute of Monopolies provides a binding

definition of the terms “manufacture,” “machine,” “composition of matter,” and “process”

in Section 101 of the U.S. Patent Act. See concurring op. at 5-8. The only one of these

terms that appears in the Statute of Monopolies is “manufacture”, a broad term that

reflects the usage of the period. Even at the time of this country’s founding, the usage

2007-1130 19
was broad, as set forth in Samuel Johnson’s Dictionary of the English Language (3d.

ed. 1768), which defines “manufacture” as “any thing made by art,” and defines “art” as

“the power of doing something not taught by nature and instinct”; “a science”; “a trade”;

“artfulness”; “skill”; “dexterity.” Historians explain that England’s primary motive for

patenting was to promote “[a]cquisition of superior Continental technology” at a time

when England lagged behind, see MacLeod, Inventing the Industrial Revolution 11; this

cannot be interpreted to mean that England and perforce the United States intended to

eliminate “processes” from this incentive system. It is inconceivable that on this

background the Framers, and again the enactors of the first United States patent

statutes in 1790 and 1793, intended sub silentio to impose the limitations on “process”

now created by this court.

Congress’ earliest known draft patent bill included the terms “art, manufacture,

engine, machine, invention or device, or any improvement upon the same.”

Walterscheid, To Promote the Progress of Useful Arts 92. The 1793 Act explicitly

stated “any new and useful art,” §1, 1 Stat. 318 (1793), a usage that was carried

forward until “art” was replaced with “process” in 35 U.S.C. §101 and defined in §100(b).

Historians discuss that Congress’ inclusion of any “art” or “process” in the patent system

was a deliberate clarification of the English practice. See Walterscheid, To Promote the

Progress of Useful Arts 93 (“[The first patent bill] appears to be an obvious attempt to

deal legislatively with issues that were beginning to be addressed by the English

courts. . . . [I]t states unequivocally that improvement inventions are patentable and

expands the definition of invention or discovery beyond simply ‘manufacture.’”); Karl B.

Lutz, Patents and Science: A Clarification of the Patent Clause of the U.S. Constitution,

2007-1130 20
32 J.P.O.S. 83, 86 (1950) (“By the year 1787 it was being recognized even in Great

Britain that the phrase ‘new manufactures’ was an unduly limited object for a patent

system, since it seems to exclude new processes. . . . [This question was] resolved in

the United States Constitution by broadening the field from ‘new manufactures’ to

‘useful arts’ . . . .”).

In interpreting a statute, it is the language selected by Congress that occupies

center stage: “[O]ur obligation is to take statutes as we find them, guided, if ambiguity

appears, by the legislative history and statutory purpose.” Chakrabarty, 447 U.S. at

315. The Court has “perceive[d] no ambiguity” in Section 101, leaving no need for

foreign assistance. Id. The legislative choice to afford the patent system “wide scope,”

id. at 308, including “process” inventions, evolved in the United States independent of

later developments of the common law in England.

The concurrence concludes that the Statute of Monopolies foreclosed the future

patenting of anything that the concurrence calls a “business method”—the term is not

defined—whether or not the method is new, inventive, and useful. But the Statute of

Monopolies only foreclosed “odious” monopolies, illustrated by historical reports that

Queen Elizabeth had granted monopolies on salt, ale, saltpeter, white soap, dredging

machines, playing cards, and rape seed oil, and on processes and services such as

Spanish leather-making, mining of various metals and ores, dying and dressing cloth,

and iron tempering. See Walterscheid, Early Evolution (Part 2), 76 J.P.T.O.S. at 854

n.14; Klitzke, Historical Background of the English Patent Law, 41 J.P.O.S. at 634-35.

These and other grants, many of which were implemented by Letters Patent, were the

“odious monopolies” that were rendered illegal. They included several classes of known

2007-1130 21
activity, product and process, and had nothing to do with new “inventions.” The Statute

of Monopolies cannot be held to have restricted the kinds of new processes that can

today be eligible for patenting in the United States, merely because it outlawed patents

on non-novel businesses in England. The presence or absence of “organizing human

activity,” a vague term created by the concurrence, has no connection or relevance to

Parliament’s elimination of monopoly patronage grants for old, established arts. The

Statute of Monopolies neither excluded nor included inventions that involve human

activity, although the words “the sole working or making in any manner of new

manufactures” presuppose human activity. 21 Jac. 1, c.3, §VI (emphases added). We

are directed to no authority for the proposition that a new and inventive process

involving “human activity” has historically been treated differently from other processes;

indeed, most inventions involve human activity.

The concurrence has provided hints of the complexity of the evolution of patent

law in England, as in the United States, as the Industrial Revolution took hold.

Historians have recognized these complexities. See, e.g., Walterscheid, To Promote

the Progress of Useful Arts 5 (“[T]he American patent law almost from its inception

departed from its common law counterpart in the interpretation that would be given to

the definition of novelty . . . .”); Klitzke, Historical Background of the English Patent Law,

41 J.P.O.S. at 638 (noting that in Elizabethan times, novelty only required a showing

that “the industry had not been carried on within the realm within a reasonable period of

time, while today “the proof of a single public sale of an article” or a “printed publication”

can negate patentability).

2007-1130 22
 I caution against over-simplification, particularly in view of the uncertainties in

English common law at the time of this country’s founding. See Boulton v. Bull, 2 H. Bl.

463, 491 (C.P. 1795) (Eyre, C.J.) (“Patent rights are no where that I can find accurately

discussed in our books.”); MacLeod, Inventing the Industrial Revolution 61 (“It was only

from the time when the Privy Council relinquished jurisdiction that a case law on patents

began to develop. . . . But it was a slow process and even the spate of hard-fought

patent cases at the end of the eighteenth century did little to establish a solid core of

judicial wisdom.”). The English judicial opinions of the eighteenth century were not as

limiting on the United States as my colleagues suggest. See Walterscheid, The Nature

of the Intellectual Property Clause: A Study in Historical Perspective 355 (2002) (“In the

eighteenth century, patentees and those who gave advice concerning patents were

certainly of the view that the Statute did not preclude the patenting of general principles

of operation.”); see also MacLeod, Inventing the Industrial Revolution 63-64.

It is reported that in the century and a half following enactment of the Statute of

Monopolies, the English patent registers were replete with inventions claimed as

“processes.” See Walterscheid, Early Evolution (Part 3), 77 J.P.T.O.S. at 856 (“As one

of the earliest texts on the patent law stated in 1806: ‘most of the patents now taken out,

are by name, for the method of doing particular things . . . .”). The concurrence agrees;

but it is also reported that because patents were not litigated in the common law courts

until the Privy Council authorized such suits in 1752, judicial interpretation of various

aspects of patent law were essentially absent until about the time this country achieved

independence, leading to the variety of views expressed in Boulton v. Bull. The

legislators in the new United States cannot now be assigned the straightjacket of law

2007-1130 23
not yet developed in England. Indeed, the first patent granted by President

Washington, upon examination by Secretary of State Jefferson, was for a method of

“making Pot-ash and Pearl-ash,” a process patent granted during the period that the

concurrence states was fraught with English uncertainty about process patents. See

The First United States Patent, 36 J.P.O.S. 615, 616-17 (1954).

The concurrence lists some English process patents predating the United States’

1793 Patent Act, and argues that processes not sufficiently “like” these archaic

inventions should not now be eligible for patenting. I refer simply to Flook, 437 U.S. at

588 n.9, where the Court stated: “As in Benson, we assume that a valid process patent

may issue even if it does not meet one of the qualifications of our earlier precedents.”

Similarly, the Chakrabarty Court stated: “[A] statute is not to be confined to the particular

applications . . . contemplated by the legislators. This is especially true in the field of

patent law.” Chakrabarty, 447 U.S. at 315-16 (citing Barr v. United States, 324 U.S. 83,

90 (1945); Browder v. United States, 312 U.S. 335, 339 (1941); Puerto Rico v. Shell

Co., 302 U.S. 253, 257 (1937)). The meaning of the statutory term “process” is not

limited by particular examples from more than two hundred years ago.

However, I cannot resist pointing to the “business method” patents on

Woodcroft’s list. See concurring op. at 15 (citing No. 1197 to John Knox (July 21, 1778)

(“Plan for assurances on lives of persons from 10 to 80 years of age.”)). Several other

process patents on Woodcroft’s list appear to involve financial subject matter, and to

require primarily human activity. See, e.g., No. 1170 to John Molesworth (Sept. 29,

1777) (“Securing to the purchasers of shares and chances of state-lottery tickets any

prize drawn in their favor.”); No. 1159 to William Nicholson (July 14, 1777) (“Securing

2007-1130 24
the property of persons purchasing shares of State-lottery tickets.”), cited in Bennet

Woodcroft, Alphabetical Index of Patentees of Inventions 383, 410 (U.S. ed. 1969).

Other English process patents from the several decades following 1793 can aptly be

described as “business methods,” although not performed with the aid of computers.

E.g., No. 10,367 to George Robert D’Harcourt (Oct. 29, 1844) (“Ascertaining and

checking the number of checks or tickets which have been used and marked, applicable

for railway officers.”).

While most patents of an earlier era reflect the dominant mechanical and

chemical technologies of that era, modern processes reflect the dramatic advances in

telecommunications and computing that have occurred since the time of George III.

See USPTO White Paper, Automated Financial or Management Data Processing

Methods (Business Methods) 4 (2000), available at

http://www.uspto.gov/web/menu/busmethp/whitepaper.pdf (hereinafter USPTO White

Paper) (“The full arrival of electricity as a component in business data processing

system[s] was a watershed event.”). It is apparent that economic, or “business

method,” or “human activity” patents were neither explicitly nor implicitly foreclosed from

access to the English patent system.

Evolution of process patents in the United States

The United States’ history of patenting establishes the same point. The PTO has

located various patents predating modern computer usages that can be described as

financial or business methods. The USPTO White Paper at 3-4 and appendix A

describes the history of financial apparatus and method patents dating back to 1799,

including patents on bank notes, bills of credit, bills of exchange, check blanks,

2007-1130 25
detecting and preventing counterfeiting, coin counting, interest calculation tables, and

lotteries, all within the first fifty years of the United States patent system. It is a

distortion of these patents to describe the processes as “tied to” another statutory

category—that is, paper and pencil. Concurring op. at 16-17 & n.18. Replacement of

paper with a computer screen, and pencil with electrons, does not “untie” the process.

Fairly considered, the many older financial and business-oriented patents that the PTO

and many of the amici have identified are of the same type as the Bilski claims; they

were surely not rendered patent-eligible solely because they used “paper” to instantiate

the financial strategies and transactions that comprised their contribution.

I do not disagree with the general suggestion that statutes intended to codify the

existing common law are to be interpreted in light of then-contemporary practice,

including, if relevant, the English cases. See concurring op. at 12-13. However, the

court must be scrupulous in assessing the relevance of decisions that were formulated

on particularized facts involving the technology of the period. The United States

Supreme Court has never held that “process” inventions suffered a second-class status

under our statutes, achieving patent eligibility only derivatively through an explicit “tie” to

another statutory category. The Court has repeatedly disparaged efforts to read in

restrictions not based on statutory language. See Diehr, 450 U.S. at 182; Chakrabarty,

447 U.S. at 308. Yet second-class status is today engrafted on “process” inventions.

There is plainly no basis for such restriction, which is a direct path to the “gloomy

thought” that concerned Senator O.H. Platt in his Remarks in Congress at the

Centennial Proceedings of the United States Patent System:

For one, I cannot entertain the gloomy thought that we have come to that
century in the world’s life in which new and grander achievements are

2007-1130 26
 impossible. . . . Invention is a prolific mother; every inventive triumph
stimulates new effort. Man never is and never will be content with
success, and the great secrets of nature are as yet largely undiscovered.

Invention and Advancement (1891), reprinted in United States Bicentennial

Commemorative Edition of Proceedings and Addresses: Celebration of the Beginning of

the Second Century of the American Patent System 75-76 (1990).

In sum, history does not support the retrogression sponsored by the

concurrence.

This court now rejects its own CCPA and Federal Circuit precedent

The majority opinion holds that there is a Supreme Court restriction on process

patents, “enunciated” in Benson, Flook, and Diehr; and that this restriction was

improperly ignored by the Federal Circuit and the Court of Customs and Patent

Appeals, leading us into error which we must now correct. Thus this court announces

that our prior decisions may no longer be relied upon. Maj. op. at 19-20 & nn.17, 19.

The effect on the patents and businesses that did rely on them is not considered.

The Court’s decisions in Benson, Flook, and Diehr all reached the Supreme

Court by way of the CCPA, and the CCPA successively implemented the Court’s

guidance in establishing the Freeman/Walter/Abele test for eligibility under Section 101.

The Federal Circuit continued to consider computer-facilitated processes, as in

Arrhythmia Research Technology, 958 F.2d at 1059-60, where patent-eligibility was

confirmed for a computer-assisted mathematical analysis of electrocardiograph signals

that determined the likelihood of recurrence of heart attack. This court now rules that

this precedent “should no longer be relied on.” Maj. op. at 19 n.17.

2007-1130 27
 In In re Alappat, 33 F.3d 1526 (Fed. Cir. 1994) (en banc) the question was the

eligibility for patent of a rasterizer that mathematically transforms data to eliminate

aliasing in a digital oscilloscope. The court held that a computer-implemented system

that produces a “useful, concrete, and tangible result” is Section 101 subject matter. Id.

at 1544. This court now rules that “a ‘useful, concrete and tangible result’ analysis

should no longer be relied on.” Maj. op. at 20 n.19.

The Alappat court stressed the intent, embodied in the language of the statute,

that the patent system be broadly available to new and useful inventions:

The use of the expansive term “any” in §101 represents Congress’s intent
not to place any restrictions on the subject matter for which a patent may
be obtained beyond those specifically recited in §101 and other parts of
Title 35.

33 F.3d at 1542. This court looked to the Supreme Court’s guidance in its Section 101

decisions, and explained:

A close analysis of Diehr, Flook, and Benson reveals that the Supreme
Court never intended to create an overly broad, fourth category of
[mathematical] subject matter excluded from §101. Rather, at the core of
the Court’s analysis in each of these cases lies an attempt by the Court to
explain a rather straightforward concept, namely, that certain types of
mathematical subject matter, standing alone, represent nothing more than
abstract ideas until reduced to some type of practical application, and thus
that subject matter is not, in and of itself, entitled to patent protection.

Id. at 1543 (emphasis in original). The court cited the Supreme Court’s distinction

between abstract ideas and their practical application, and stated of the claimed

rasterizer: “This is not a disembodied mathematical concept which may be

characterized as an ‘abstract idea,’ but rather a specific machine to produce a useful,

concrete, and tangible result.” Id. at 1544.

2007-1130 28
 This principle was applied to a computer-implemented data processing system

for managing pooled mutual fund assets in State Street Bank & Trust Co. v. Signature

Financial Group, Inc., 149 F.3d 1368 (Fed. Cir. 1998), and to a method for recording

and processing telephone data in AT&T v. Excel. The court explained that processes

that include mathematical calculations in a practical application can produce a useful,

concrete, and tangible result, which in State Street Bank was “expressed in numbers,

such as price, profit, percentage, cost, or loss.” 149 F.3d at 1375. In AT&T v. Excel the

court applied State Street Bank and Diehr, and stated that “physical transformation . . .

is not an invariable requirement, but merely one example of how a mathematical

algorithm may bring about a useful application” and thus achieve a useful, concrete, and

tangible result. 172 F.3d at 1358. This analysis, too, can no longer be relied on. Maj.

op. at 20 n.19.

The now-discarded criterion of a “useful, concrete, and tangible result” has

proved to be of ready and comprehensible applicability in a large variety of processes of

the information and digital ages. The court in State Street Bank reinforced the thesis

that there is no reason, in statute or policy, to exclude computer-implemented and

information-based inventions from access to patentability. The holdings and reasoning

of Alappat and State Street Bank guided the inventions of the electronic age into the

patent system, while remaining faithful to the Diehr distinction between abstract ideas

such as mathematical formulae and their application in a particular process for a

specified purpose. And patentability has always required compliance with all of the

requirements of the statute, including novelty, non-obviousness, utility, and the

provisions of Section 112.

2007-1130 29
The public has relied on the rulings of this court and of the Supreme Court

The decisions in Alappat and State Street Bank confirmed the patent eligibility of

many evolving areas of commerce, as inventors and investors explored new

technological capabilities. The public and the economy have experienced extraordinary

advances in information-based and computer-managed processes, supported by an

enlarging patent base. The PTO reports that in Class 705, the examination

classification associated with “business methods” and most likely to receive inventions

that may not use machinery or transform physical matter, there were almost 10,000

patent applications filed in FY 2006 alone, and over 40,000 applications filed since FY

98 when State Street Bank was decided. See Wynn W. Coggins, USPTO, Update on

Business Methods for the Business Methods Partnership Meeting 6 (2007) (hereinafter

“PTO Report”), available at http://www.uspto.gov/web/menu/pbmethod/partnership.pps.

An amicus in the present case reports that over 15,000 patents classified in Class 705

have issued. See Br. of Amicus Curiae Accenture, at 22 n.20. 4 The industries

identified with information-based and data-handling processes, as several amici curiae

explain and illustrate, include fields as diverse as banking and finance, insurance, data

processing, industrial engineering, and medicine.

Stable law, on which industry can rely, is a foundation of commercial advance

into new products and processes. Inventiveness in the computer and information

services fields has placed the United States in a position of technological and

commercial preeminence. The information technology industry is reported to be “the

4
The PTO recognizes that patents on “business methods” have been
eligible subject matter for two centuries. See USPTO White Paper 2 (“Financial patents
in the paper-based technologies have been granted continuously for over two hundred
years.”).
2007-1130 30
key factor responsible for reversing the 20-year productivity slow-down from the mid-

1970s to the mid-1990s and in driving today’s robust productivity growth.” R.D.

Atkinson & A.S. McKay, Digital Prosperity: Understanding the Economic Benefits of the

Information Technology Revolution 10 (Info. Tech. & Innovation Found. 2007), available

at http://www.itif.org/files/digital_prosperity.pdf. By revenue estimates, in 2005 the

software and information sectors constituted the fourth largest industry in the United

States, with significantly faster growth than the overall U.S. economy. Software & Info.

Indus. Ass’n, Software and Information: Driving the Knowledge Economy 7-8 (2008),

http://www.siia.net/estore/globecon-08.pdf. A Congressional Report in 2006 stated:

As recently as 1978, intangible assets, such as intellectual property,
accounted for 20 percent of corporate assets with the vast majority of
value (80 percent) attributed to tangible assets such as facilities and
equipment. By 1997, the trend reversed; 73 percent of corporate assets
were intangible and only 27 percent were tangible.

H.R. Rep. No. 109-673 (accompanying a bill concerning judicial resources).

This powerful economic move toward “intangibles” is a challenge to the

backward-looking change of this court’s ruling today. Until the shift represented by

today’s decision, statute and precedent have provided stability in the rapidly moving and

commercially vibrant fields of the Information Age. Despite the economic importance of

these interests, the consequences of our decision have not been considered. I don’t

know how much human creativity and commercial activity will be devalued by today’s

change in law; but neither do my colleagues.

The Section 101 interpretation that is now uprooted has the authority of years of

reliance, and ought not be disturbed absent the most compelling reasons.

“Considerations of stare decisis have special force in the area of statutory interpretation,

2007-1130 31
for here, unlike in the context of constitutional interpretation, the legislative power is

implicated, and Congress remains free to alter what [the courts] have done.” Shepard

v. United States, 544 U.S. 13, 23 (2005) (quoting Patterson v. McLean Credit Union,

491 U.S. 164, 172-73 (1989)); see also Hilton v. S.C. Pub. Res. Comm’n, 502 U.S. 197,

205 (1991) (in cases of statutory interpretation the importance of adhering to prior

rulings is “most compelling”). Where, as here, Congress has not acted to modify the

statute in the many years since Diehr and the decisions of this court, the force of stare

decisis is even stronger. See Shepard, 544 U.S. at 23.

Adherence to settled law, resulting in settled expectations, is of particular

importance “in cases involving property and contract rights, where reliance interests are

involved.” Payne v. Tennessee, 501 U.S. 808, 828 (1991); see also United States v.

Title Ins. & Trust Co., 265 U.S. 472, 486 (1924) (declining to overrule precedent where

prior ruling “has become a rule of property, and to disturb it now would be fraught with

many injurious results”). This rationale is given no weight by my colleagues, as this

court gratuitously disrupts decades of law underlying our own rulings. The only

announced support for today’s change appears to be the strained new reading of

Supreme Court quotations. But this court has previously read these decades-old

opinions differently, without objection by either Congress or the Court. My colleagues

do not state a reason for their change of heart. See Benjamin N. Cardozo, The Nature

of the Judicial Process 149 (1921) (“[T]he labor of judges would be increased almost to

the breaking point if every past decision could be reopened in every case, and one

could not lay one’s own course of bricks on the secure foundation of the courses laid by

others who had gone before him.”).

2007-1130 32
 It is the legislature’s role to change the law if the public interest so requires. In

Chakrabarty the Court stated: “The choice we are urged to make is a matter of high

policy for resolution within the legislative process after the kind of investigation,

examination, and study that legislative bodies can provide and courts cannot.” 447 U.S.

at 317; see also Flook, 437 U.S. 595 (“Difficult questions of policy concerning the kinds

of programs that may be appropriate for patent protection and the form and duration of

such protection can be answered by Congress on the basis of current empirical data not

equally available to this tribunal.”).

It is, however, the judicial obligation to assure a correct, just, and reliable judicial

process, and particularly to respect the principles of stare decisis in an area in which

prior and repeated statutory interpretations have been relied upon by others. See, e.g.,

Shepard, 544 U.S. at 23 (“[T]he claim to adhere to case law is generally powerful once

a decision has settled statutory meaning.”); Hilton, 502 U.S. at 202 (“Adherence to

precedent promotes stability, predictability, and respect for judicial authority.”); Payne,

501 U.S. at 827 (“Stare decisis is the preferred course because it promotes the

evenhanded, predictable, and consistent development of legal principles, fosters

reliance on judicial decisions, and contributes to the actual and perceived integrity of the

judicial process.”). These considerations appear to be abandoned.

Uncertain guidance for the future

Not only past expectations, but future hopes, are disrupted by uncertainty as to

application of the new restrictions on patent eligibility. For example, the court states

that even if a process is “tied to” a machine or transforms matter, the machine or

transformation must impose “meaningful limits” and cannot constitute “insignificant

2007-1130 33
extra-solution activity”. Maj. op. at 24. We are advised that transformation must be

“central to the purpose of the claimed process,” id., although we are not told what kinds

of transformations may qualify, id. at 25-26. These concepts raise new conflicts with

precedent.

This court and the Supreme Court have stated that “there is no legally

recognizable or protected ‘essential’ element, ‘gist’ or ‘heart’ of the invention in a

combination patent.” Allen Eng’g Corp. v. Bartell Industries, Inc., 299 F.3d 1336, 1345

(Fed. Cir. 2002) (quoting Aro Mfg. Co. v. Convertible Top Replacement Co., 365 U.S.

336, 345 (1961)). This rule applies with equal force to process patents, see W.L. Gore

& Associates, Inc. v. Garlock, Inc., 721 F.2d 1540, 1548 (Fed. Cir. 1983) (there is no

gist of the invention rule for process patents), and is in accord with the rule that the

invention must be considered as a whole, rather than “dissected,” in assessing its

patent eligibility under Section 101, see Diehr, 450 U.S. at 188. It is difficult to predict

an adjudicator’s view of the “invention as a whole,” now that patent examiners and

judges are instructed to weigh the different process components for their “centrality” and

the “significance” of their “extra-solution activity” in a Section 101 inquiry.

As for whether machine implementation will impose “meaningful limits in a

particular case,” the “meaningfulness” of computer usage in the great variety of

technical and informational subject matter that is computer-facilitated is apparently now

a flexible parameter of Section 101. Each patent examination center, each trial court,

each panel of this court, will have a blank slate on which to uphold or invalidate claims

based on whether there are sufficient “meaningful limits”, or whether a transformation is

adequately “central,” or the “significance” of process steps. These qualifiers, appended

2007-1130 34
to a novel test which itself is neither suggested nor supported by statutory text,

legislative history, or judicial precedent, raise more questions than they answer. These

new standards add delay, uncertainty, and cost, but do not add confidence in reliable

standards for Section 101.

Other aspects of the changes of law also contribute uncertainty. We aren’t told

when, or if, software instructions implemented on a general purpose computer are

deemed “tied” to a “particular machine,” for if Alappat’s guidance that software converts

a general purpose computer into a special purpose machine remains applicable, there

is no need for the present ruling. For the thousands of inventors who obtained patents

under the court’s now-discarded criteria, their property rights are now vulnerable.

The court also avoids saying whether the State Street Bank and AT&T v. Excel

inventions would pass the new test. The drafting of claims in machine or process form

was not determinative in those cases, for “we consider the scope of §101 to be the

same regardless of the form—machine or process—in which a particular claim is

drafted.” AT&T v. Excel, 172 F.3d at 1357. From either the machine or the

transformation viewpoint, the processing of data representing “price, profit, percentage,

cost, or loss” in State Street Bank is not materially different from the processing of the

Bilski data representing commodity purchase and sale prices, market transactions, and

risk positions; yet Bilski is held to fail our new test, while State Street is left hanging.

The uncertainty is illustrated in the contemporaneous decision of In re Comiskey, 499

F.3d 1365, 1378-79 (Fed. Cir. 2007), where the court held that “systems that depend for

their operation on human intelligence alone” to solve practical problems are not within

the scope of Section 101; and In re Nuijten, 500 F.3d 1346, 1353-54 (Fed. Cir. 2007),

2007-1130 35
where the court held that claims to a signal with an embedded digital watermark

encoded according to a given encoding process were not directed to statutory subject

matter under Section 101, although the claims included “physical but transitory forms of

signal transmission such as radio broadcasts, electrical signals through a wire, and light

pluses through a fiber-optic cable.”

Although this uncertainty may invite some to try their luck in court, the wider

effect will be a disincentive to innovation-based commerce. For inventors, investors,

competitors, and the public, the most grievous consequence is the effect on inventions

not made or not developed because of uncertainty as to patent protection. Only the

successes need the patent right.

The Bilski invention has not been examined for patentability

To be patentable, Bilski’s invention must be novel and non-obvious, and the

specification and claims must meet the requirements of enablement, description,

specificity, best mode, etc. See 35 U.S.C. §101 (“Whoever invents or discovers a new

and useful process . . . may obtain a patent therefor, subject to the conditions and

requirements of this title.”); Diehr, 490 U.S. at 190 (the question of whether an invention

is novel is distinct from whether the subject matter is statutory); State Street Bank, 149

F.3d at 1377 (“Whether the patent’s claims are too broad to be patentable is not to be

judged under §101, but rather under §§102, 103, and 112.”). I don’t know whether

Bilski can meet these requirements—but neither does this court, for the claims have not

been examined for patentability, and no rejections apart from Section 101 are included

in this appeal.

2007-1130 36
 Instead, the court states the “true issue before us” is “whether Applicants are

seeking to claim a fundamental principle (such as an abstract idea) or mental process,”

maj. op. at 7, and answers “yes.” With respect, that is the wrong question, and the

wrong answer. Bilski’s patent application describes his process of analyzing the effects

of supply and demand on commodity prices and the use of a coupled transaction

strategy to hedge against these risks; this is not a fundamental principle or an abstract

idea; it is not a mental process or a law of nature. It is a “process,” set out in successive

steps, for obtaining and analyzing information and carrying out a series of commercial

transactions for the purpose of “managing the consumption risk costs of a commodity

sold by a commodity provider at a fixed price.” Claim 1, preamble.

Because the process Bilski describes employs complex mathematical

calculations to assess various elements of risk, any practicable embodiment would be

conducted with the aid of a machine—a programmed computer—but the court holds

that since computer-implementation is not recited in claim 1, for that reason alone the

process fails the “machine” part of the court’s machine-or-transformation test. Maj. op.

at 24. And the court holds that since Bilski’s process involves the processing of data

concerning commodity prices and supply and demand and other risk factors, the

process fails the “transformation” test because no “physical objects or substances” are

transformed. Maj. op. at 28-29. The court then concludes that because Bilski’s Claim 1

fails the machine-or-transformation test it ipso facto preempts a “fundamental principle”

and is thereby barred from the patent system under Section 101: an illogical leap that

displays the flaws in the court’s analysis.

2007-1130 37
 If a claim is unduly broad, or if it fails to include sufficient specificity, the

appropriate ground of rejection is Section 112, for claims must “particularly point out and

distinctly claim[]” the invention. See In re Vaeck, 947 F.2d 488, 495-96 (Fed. Cir. 1991)

(affirming rejection under Section 112 where “[t]here is no reasonable correlation

between the narrow disclosure in applicant’s specification and the broad scope of

protection sought in the claims”); In re Foster, 438 F.2d 1011, 1016 (C.C.P.A. 1971)

(claims “not commensurate with appellants’ own definition of what they are seeking to

cover” are rejected under Section 112, rather than Section 101); In re Prater, 415 F.2d

at 1403-04 (applying Section 112 to claims that included mental steps). The filing of a

broader claim than is supported in the specification does not convert the invention into

an abstraction and evict the application from eligibility for examination. A broad first

claim in a patent application is routine; it is not the crisis event postulated in the court’s

opinion.

The role of examination is to determine the scope of the claims to which the

applicant is entitled. See 37 C.F.R. §1.104(a). The PTO’s regulations provide:

On taking up an application for examination or a patent in a reexamination
proceeding, the examiner shall make a thorough study thereof and shall
make a thorough investigation of the available prior art relating to the
subject matter of the claimed invention. The examination shall be
complete with respect to both compliance of the application or patent
under reexamination with the applicable statutes and rules and to the
patentability of the invention as claimed, as well as with respect to matters
of form, unless otherwise indicated.

Id. §1.104(a)(1). The Manual of Patent Examining Procedure (MPEP) similarly instructs

the examiners to conduct a “thorough search of the prior art” before evaluating the

invention under Section 101. MPEP §2106(III) (8th ed., rev. 7, July. 2008) (“Prior to

evaluating the claimed invention under 35 U.S.C. §101, USPTO personnel are expected

2007-1130 38
to conduct a thorough search of the prior art.”). The MPEP also requires examiners to

identify all grounds of rejection in the first official PTO action to avoid unnecessary

delays in examination. Id. §2106(II) (“Under the principles of compact prosecution,

each claim should be reviewed for compliance with every statutory requirement for

patentability in the initial review of the application, even if one or more claims are found

to be deficient with respect to some statutory requirement.”). I note that this

requirement does not appear to have been here met.

Several amici curiae referred to the difficulties that the PTO has reported in

examining patents in areas where the practice has been to preserve secrecy, for

published prior art is sparse. The Federal Trade Commission recognized that the

problem of “questionable” patents stems mostly from “the difficulty patent examiners

can have in considering all the relevant prior art in the field and staying informed about

the rapid advance of computer science.” FTC, To Promote Innovation: The Proper

Balance of Competition & Patent Law and Policy at ch. 3, pp. 44 (Oct. 2003), available

at http://www.ftc.gov/os/2003/10/innovationrpt.pdf. However, this problem seems to be

remedied, for the PTO reported in 2007 that for Class 705, “[t]he cases the examiners

are now working on have noticeably narrower claims” than the cases filed in or before

FY 2000. PTO Report at 9. The PTO reports that its search fields have been enlarged,

staff added, and supervision augmented. FTC Report at ch. 1, p. 30. (“Since the PTO

introduced [these changes] the allowance rate for business method patents has

decreased, and the PTO believes that this decreased allowance rate indicates improved

PTO searches for prior art.”). If this court’s purpose now is to improve the quality of

2007-1130 39
issued patents by eliminating access to patenting for large classes of past, present, and

future inventions, the remedy would appear to be excessive.

A straightforward, efficient, and ultimately fair approach to the evaluation of “new

and useful” processes—quoting Section 101—is to recognize that a process invention

that is not clearly a “fundamental truth, law of nature, or abstract idea” is eligible for

examination for patentability. I do not suggest that basic scientific discoveries are a

proper subject matter of patents (the Court in Chakrabarty mentioned E=mc2 and the

law of gravity), and I do not attempt an all-purpose definition of the boundary between

scientific theory and technological application. But it is rare indeed that a question

arises at the boundary of basic science; more usual is the situation illustrated by

Samuel Morse’s telegraph, in which the Court simply held that Morse’s general claim

was “too broad,” exceeding the scope of his practical application.

Bilski’s process for determining risk in commodity transactions does not become

an abstraction because it is broadly claimed in his first claim. It may be claimed so

broadly that it reads on the prior art, but it is neither a fundamental truth nor an

abstraction. Bilski’s ten other claims contain further details and limitations, removing

them farther from abstraction. Although claim 1 may have been deemed

“representative” with respect to Section 101, the differences among the claims may be

significant with respect to Sections 102, 103, and 112. Bilski’s application, now pending

for eleven years, has yet to be examined for patentability.

CONCLUSION

In sum, the text of Section 101, its statutory history, its interpretation by the

Supreme Court, and its application by the courts, contravene this court's redefinition of

2007-1130 40
the statutory term “process.” The court’s decision affects present and future rights and

incentives, and usurps the legislative role. The judicial role is to support stability and

predictability in the law, with fidelity to statue and precedent, and respect for the

principles of stare decisis.

Patents provide an incentive to invest in and work in new directions. In United

States v. Line Materials Co., 333 U.S. 287, 332 (1948), Justice Burton, joined by Chief

Justice Vinson and Justice Frankfurter, remarked that “the frontiers of science have

expanded until civilization now depends largely upon discoveries on those frontiers to

meet the infinite needs of the future. The United States, thus far, has taken a leading

part in making those discoveries and in putting them to use.” This remains true today.

It is antithetical to this incentive to restrict eligibility for patenting to what has been done

in the past, and to foreclose what might be done in the future.

2007-1130 41
 UNITED STATES COURT OF APPEALS FOR THE FEDERAL CIRCUIT

2007-1130
(Serial No. 08/833,892)

IN RE BERNARD L. BILSKI
and RAND A. WARSAW

Appeal from the United States Patent and Trademark Office, Board of Patent Appeals
and Interferences.

MAYER, Circuit Judge, dissenting.

The en banc order in this case asked: “Whether it is appropriate to reconsider

State Street Bank & Trust Co. v. Signature Financial Group, Inc., 149 F.3d 1368 (Fed.

Cir. 1998), and AT&T Corp. v. Excel Communications, Inc., 172 F.3d 1352 (Fed. Cir.

1999), in this case and, if so, whether those cases should be overruled in any respect?”

I would answer that question with an emphatic “yes.” The patent system is intended to

protect and promote advances in science and technology, not ideas about how to

structure commercial transactions. Claim 1 of the application of Bernard L. Bilski and

Rand A. Warsaw (“Bilski”) is not eligible for patent protection because it is directed to a

method of conducting business. Affording patent protection to business methods lacks

constitutional and statutory support, serves to hinder rather than promote innovation

and usurps that which rightfully belongs in the public domain. State Street and AT&T

should be overruled.
 I.

In discussing the scope of copyright protection, the Supreme Court has noted

that “‘a page of history is worth a volume of logic.’” Eldred v. Ashcroft, 537 U.S. 186,

200 (2003) (quoting New York Trust Co. v. Eisner, 256 U.S. 345, 349 (1921)). The

same holds true with respect to patent protection. From a historical perspective, it is

highly unlikely that the framers of the Constitution’s intellectual property clause intended

to grant patent protection to methods of conducting business. To the contrary, “those

who formulated the Constitution were familiar with the long struggle over monopolies so

prominent in English history, where exclusive rights to engage even in ordinary

business activities were granted so frequently by the Crown for the financial benefits

accruing to the Crown only.” In re Yuan, 188 F.2d 377, 380 (CCPA 1951). The Statute

of Monopolies, 1 enacted in 1624, curtailed the Crown’s ability to grant “monopolies to

court favorites in goods or businesses which had long before been enjoyed by the

public.” Graham v. John Deere Co., 383 U.S. 1, 5 (1966). When drafting the

Constitution, the framers were well aware of the abuses that led to the English Statute

of Monopolies and therefore “consciously acted to bar Congress from granting letters

patent in particular types of business.” In re Comiskey, 499 F.3d 1365, 1375 (Fed. Cir.

2007); see also Malla Pollack, The Multiple Unconstitutionality of Business Method

Patents: Common Sense, Congressional Consideration, and Constitutional History, 28

Rutgers Computer & Tech. L.J. 61, 90 (2002) (“[T]he ratifying generation did not agree

1
The Statute of Monopolies “grew out of abuses in the grant of exclusive
franchises in various lines of business such as trading cards, alehouses and various
staple products.” Robert P. Merges, As Many as Six Impossible Patents Before
Breakfast: Property Rights for Business Concepts and Patent System Reform, 14
Berkeley Tech. L.J. 577, 585 (1999).

2007-1130 2
to invention patents on advances in trade itself, because trade monopolies were

odious.”).

There is nothing in the early patent statutes to indicate that Congress intended

business methods to constitute patentable subject matter. See Patent Act of 1790 § 4,

1 Stat. 109, 111 (1790); Patent Act of 1793 § 1, 1 Stat. 318, 319 (1793); Pollack, supra

at 106 (“[I]f any nation was ripe for invention patents on business methods, it was the

newly freed colonies of British North America. . . . [H]owever, no business method

patents seem to have been granted.”). As early as 1869, the Commissioner of Patents

said that “[i]t is contrary . . . to the spirit of the law, as construed by the office for many

years, to grant patents for methods of book-keeping,” Ex parte Abraham, 1869 Dec.

Comm'r Pat. 59, 59 (1869), and by 1893 the courts had concluded that “a method of

transacting common business . . . does not seem to be patentable as an art,” United

States Credit Sys. Co. v. Am. Credit Indem. Co., 53 F. 818, 819 (C.C.S.D.N.Y. 1893),

aff'd on other grounds, 59 F. 139 (2d Cir. 1893). By 1952, when Congress enacted the

current Patent Act, it was widely acknowledged that methods of doing business were

ineligible for patent protection. See, e.g., Loew’s Drive-In Theatres, Inc. v. Park-In

Theatres, Inc., 174 F.2d 547, 552 (1st Cir. 1949) (“[A] system for the transaction of

business . . . however novel, useful, or commercially successful is not patentable apart

from the means for making the system practically useful, or carrying it out.”); In re

Patton, 127 F.2d 324 (CCPA 1942) (noting that “a system of transacting business, apart

from the means for carrying out such system” is not patentable); Hotel Sec. Checking

Co. v. Lorraine Co., 160 F. 467, 469 (2d Cir. 1908) (“A system of transacting business

disconnected from the means for carrying out the system is not, within the most liberal

2007-1130 3
interpretation of the term, an art.”); In re Moeser, 27 App. D.C. 307, 310 (1906) (holding

that a system for burial insurance contracts was not patentable because “contracts or

proposals for contracts, devised or adopted as a method of transacting a particular

class of . . . business, [are] not patentable as an art”); see also 145 Cong. Rec. H6,947

(Aug. 3, 1999) (statement of Rep. Manzullo) (“Before the State Street Bank and Trust

case . . . it was universally thought that methods of doing or conducting business were

not patentable items.”).

In passing the 1952 Act, Congress re-enacted statutory language that had long

existed, 2 thus signaling its intent to carry forward the body of case law that had

developed under prior versions of the statute. Because there is nothing in the language

of the 1952 Act, or its legislative history, to indicate that Congress intended to modify

the rule against patenting business methods, we must presume that no change in the

rule was intended. See, e.g., Astoria Fed. Sav. & Loan Ass’n v. Solimino, 501 U.S. 104,

108 (1991) (“[W]here a common-law principle is well established . . . the courts may

take it as given that Congress has legislated with an expectation that the principle will

apply except when a statutory purpose to the contrary is evident.” (citations and internal

quotation marks omitted)); Isbrandtsen Co. v. Johnson, 343 U.S. 779, 783 (1952)

(“Statutes which invade the common law . . . are to be read with a presumption favoring

the retention of long-established and familiar principles, except when a statutory

purpose to the contrary is evident.”); see also In re Schrader, 22 F.3d 290, 295 (Fed.

Cir. 1994) (“When Congress approved the addition of the term ‘process’ to the

2
Congress did substitute the word “process” for “art” in the 1952 Act, but
“[a]nalysis of the eligibility of a claim of patent protection for a ‘process’ did not change
with the addition of that term to § 101.” Diamond v. Diehr, 450 U.S. 175, 184 (1981).

2007-1130 4
categories of patentable subject matter in 1952, it incorporated the definition of ‘process’

that had evolved in the courts.” (footnote omitted)). If Congress had wished to change

the established practice of disallowing patents on business methods, it was quite

capable of doing so explicitly. See Parker v. Flook, 437 U.S. 584, 596 (1978) (stressing

that courts “must proceed cautiously when . . . asked to extend patent rights into areas

wholly unforeseen by Congress”).

State Street’s decision to jettison the prohibition against patenting methods of

doing business contravenes congressional intent. Because (1) “the framers consciously

acted to bar Congress from granting letters patent in particular types of business,”

Comiskey, 499 F.3d at 1375, and (2) Congress evidenced no intent to modify the long-

established rule against business method patents when it enacted the 1952 Patent Act,

it is hard to fathom how the issuance of patents on business methods can be supported.

II.

Business method patents have been justified, in significant measure, by a

misapprehension of the legislative history of the 1952 Patent Act. In particular,

proponents of such patents have asserted that the Act’s legislative history states that

Congress intended statutory subject matter to “include anything under the sun that is

made by man.” AT&T, 172 F.3d at 1355 (Fed. Cir. 1999) (citations and internal

quotation marks omitted); see also Diamond v. Chakrabarty, 447 U.S. 303, 309 (1980).

Read in context, however, the legislative history says no such thing. The full statement

from the committee report reads: “A person may have ‘invented’ a machine or a

manufacture, which may include anything under the sun that is made by man, but it is

not necessarily patentable under section 101 unless the conditions of the title are

2007-1130 5
fulfilled.” S. Rep. No. 1979, 82d Cong., 2d Sess. 5 (1952) (emphasis added); H.R. Rep.

No. 1923, 82d Cong., 2d Sess. 6 (1952) (emphasis added).

This statement does not support the contention that Congress intended “anything

under the sun” to be patentable. To the contrary, the language supports the opposite

view: a person may have “invented” anything under the sun, but it is “not necessarily

patentable” unless the statutory requirements for patentability have been satisfied.

Thus, the legislative history oft-cited to support business method patents undercuts,

rather than supports, the notion that Congress intended to extend the scope of section

101 to encompass such methods.

Moreover, the cited legislative history is not discussing process claims at all. The

quoted language is discussing “machines” and “manufactures;” it is therefore surprising

that it has been thought a fit basis for allowing patents on business processes.

III.

The Constitution does not grant Congress unfettered authority to issue patents.

See U.S. Const. art. I, § 8. 3 Instead, the patent power is a “qualified authority . . .

[which] is limited to the promotion of advances in the ‘useful arts.’” Graham, 383 U.S. at

5; see also KSR Int’l Co. v. Teleflex Inc., 127 S. Ct. 1727, 1746 (2007) (reaffirming that

patents are designed to promote “the progress of useful arts”). What the framers

described as “useful arts,” we in modern times call “technology.” Paulik v. Rizkalla, 760

F.2d 1270, 1276 (Fed. Cir. 1985) (en banc). Therefore, by mandating that patents

3
Article I, § 8 provides that “The Congress shall have Power . . . To promote the
Progress of Science and useful Arts by securing for limited Times to Authors and
Inventors the exclusive Right to their respective Writings and Discoveries.” The patent
power “is the only one of the several powers conferred upon the Congress which is
accompanied by a specific statement of the reason for it.” Yaun, 188 F.2d at 380.

2007-1130 6
advance the useful arts, “[t]he Constitution explicitly limited patentability to . . . ‘the

process today called technological innovation.’” Comiskey, 499 F.3d at 1375 (quoting

Paulik, 760 F.2d at 1276); see also In re Foster, 438 F.2d 1011 (CCPA 1971) (“All that

is necessary . . . to make a sequence of operational steps a statutory ‘process’ within

35 U.S.C. § 101 is that it be in the technological arts.”); Karl B. Lutz, Patents and

Science: A Clarification of the Patent Clause of the U.S. Constitution, 18 Geo. Wash. L.

Rev. 50, 54 (1949) (“The term ‘useful arts’ as used in the Constitution . . . is best

represented in modern language by the word ‘technology.’”); James S. Sfekas,

Controlling Business Method Patents: How the Japanese Standard for Patenting

Software Could Bring Reasonable Limitations to Business Method Patents in the United

States, 16 Pac. Rim. L. & Pol’y J. 197, 214 (2007) (At the time the Patent Clause was

adopted, “the term ‘useful arts’ was commonly used in contrast to the ideas of the

‘liberal arts’ and the ‘fine arts,’ which were well-known ideas in the eighteenth century.”).

Before State Street led us down the wrong path, this court had rightly concluded

that patents were designed to protect technological innovations, not ideas about the

best way to run a business. 4 We had thus rejected as unpatentable a method for

4
“[D]espite the assertions in State Street and Schrader, very few in the patent
community believe that business methods have always been patentable. To the
contrary, the dominant view is that the law has changed, and that the definition of
patentable subject matter is now wider than it once was.” R. Carl Moy, Subjecting
Rembrandt to the Rule of Law: Rule-Based Solutions for Determining the Patentability
of Business Methods, 28 Wm. Mitchell L. Rev. 1047, 1060 (2002) (footnotes omitted);
see also Rochelle Cooper Dreyfuss, Are Business Method Patents Bad for Business?,
16 Santa Clara Computer & High Tech. L.J. 263, 265-66 (2000) (State Street gave
“judicial recognition to business method patents.”). Over the course of two centuries, a
few patents issued on what could arguably be deemed methods of doing business, see,
e.g., U.S. Patent No. 5,664,115 (“Interactive Computer System to Match Buyers and
Sellers of Real Estate, Businesses and Other Property Using the Internet”), but these
patents were aberrations and the general rule, prior to State Street, was that methods of

2007-1130 7
coordinating firefighting efforts, Patton, 127 F.2d at 326-27, a method for deciding how

salesmen should best handle customers, In re Maucorps, 609 F.2d 481 (CCPA 1979),

and a computerized method for aiding a neurologist in diagnosing patients, In re Meyer,

688 F.2d 789 (CCPA 1982). 5 We stated that patentable processes must “be in the

technological arts so as to be in consonance with the Constitutional purpose to promote

engaging in business were ineligible for patent protection. See Comiskey, 499 F.3d at
1374 (noting that “[a]t one time, ‘[t]hough seemingly within the category of process or
method, a method of doing business [was] rejected as not being within the statutory
classes.’” (quoting State Street, 149 F.3d at 1377)). One commentator has noted that
although the United States Patent and Trademark Office (“USPTO”) “in an attempt to
deflect criticism [has] issued an apologia . . . asserting that business method patents are
as old as the United States patent system,” this document is fundamentally flawed. See
Pollack, supra at 73-75. She explains:

The USPTO wants us to believe that it found no records of patents whose
points of invention were business methods, because no one had time to
invent any new business methods until the human race had run its
mechanical ingenuity to the peak of computer software; seemingly we
were all too busy inventing the computer to think about anything else—
especially new ways of doing business. I thought that we granted patents
because, otherwise, people would be too busy making money by running
businesses to take time out to invent anything except business methods.
The USPTO [document], furthermore, is eliding the printed matter
exception to patentable subject matter with the business method
exception.

Id. at 75 (footnote omitted).
5
The claims in Patton were explicitly rejected on the basis that they were
directed to a business method, while the claims in Maucorps and Meyer were rejected
as attempts to patent mathematical algorithms. Subsequently, however, this court
stated that the claimed processes in Maucorps and Meyer were directed toward
business systems and should therefore not be considered patent eligible. In re Alappat,
33 F.3d 1526, 1541 (Fed. Cir. 1994) (en banc). We noted that “Maucorps dealt with a
business methodology for deciding how salesmen should best handle respective
customers and Meyer involved a ‘system’ for aiding a neurologist in diagnosing patients.
Clearly, neither of the alleged ‘inventions’ in those cases falls within any § 101
category.” Id.

2007-1130 8
the progress of ‘useful arts.’” In re Musgrave, 431 F.2d 882, 893 (CCPA 1970)

(emphasis added).

Business method patents do not promote the “useful arts” because they are not

directed to any technological or scientific innovation. Although business method

applications may use technology—such as computers—to accomplish desired results,

the innovative aspect of the claimed method is an entrepreneurial rather than a

technological one. Thus, although Bilski’s claimed hedging method could theoretically

be implemented on a computer, that alone does not render it patentable. See Diehr,

450 U.S. at 192 n.14 (Patentability cannot be established by the “token” use of

technology.); Gottschalk v. Benson, 409 U.S. 63, 64-66 (1972) (finding unpatentable a

method of programming a general purpose digital computer to convert signals from

binary-coded decimal to pure binary form). Where a claimed business method simply

uses a known machine to do what it was designed to do, such as using a computer to

gather data or perform calculations, use of that machine will not bring otherwise

unpatentable subject matter within the ambit of section 101. See Benson, 409 U.S. at

67 (finding a process unpatentable where “[t]he mathematical procedures [could] be

carried out in existing computers long in use, no new machinery being necessary”).

Although the Supreme Court has not directly addressed the patentability of

business methods, several of its decisions implicitly tether patentability to technological

innovation. See Pfaff v. Wells Elecs., Inc., 525 U.S. 55, 63 (1998) (“[T]he patent system

represents a carefully crafted bargain that encourages both the creation and the public

disclosure of new and useful advances in technology, in return for an exclusive

monopoly for a limited period of time.” (emphasis added)); Markman v. Westview

2007-1130 9
Instruments, Inc., 517 U.S. 370, 390 (1996) (“Congress created the Court of Appeals for

the Federal Circuit as an exclusive appellate court for patent cases . . . observing that

increased uniformity would strengthen the United States patent system in such a way as

to foster technological growth and industrial innovation.” (citations and internal quotation

marks omitted) (emphasis added)); Benson, 409 U.S. at 71 (refusing to “freeze [the

patentability of] process patents to old technologies, leaving no room for the revelations

of the new, onrushing technology” (emphases added)). Indeed, the Supreme Court has

repeatedly emphasized that what renders subject matter patentable is “the application

of the law of nature to a new and useful end.” Funk Bros. Seed Co. v. Kalo Inoculant

Co., 333 U.S. 127, 130 (1948); see Diehr, 450 U.S. at 188 n.11; Benson, 409 U.S. at
6
67. Applying laws of nature to new and useful ends is nothing other than

“technology.” 7 See, e.g., Microsoft Computer Dictionary 513 (5th ed. 2002) (The

definition of “technology” is the “application of science and engineering to the

6
Laws of nature are those laws pertaining to the “natural sciences,” such as
biology, chemistry, or physics. See, e.g., Webster’s New International Dictionary 1507
(3d ed. 2002) (“Natural sciences” are the “branches of science ([such] as physics,
chemistry, [or] biology) that deal with matter, energy, and their interrelations and
transformations or with objectively measured phenomena.”). They must be
distinguished from other types of law, such as laws of economics or statutory
enactments. Laws of nature do not involve “judgments on human conduct, ethics,
morals, economics, politics, law, aesthetics, etc.” Musgrave, 431 F.2d at 890; see also
Joy Y. Xiang, How Wide Should the Gate of “Technology” Be? Patentability of
Business Methods in China, 11 Pac. Rim L. & Pol’y J. 795, 807 (2002) (noting that
State Street’s “‘useful, concrete and tangible result’ test is inconsistent with the
‘application of the law of nature’ patent eligibility scope outlined by the U.S. Supreme
Court and [the Federal Circuit prior to State Street].”).
7
One commentator notes that both Japan and the Republic of Korea explicitly
define an “invention” as the application of a law of nature, and argues that the United
States should follow a similar approach to patentability. See Andrew A. Schwartz, The
Patent Office Meets the Poison Pill: Why Legal Methods Cannot be Patented, 20 Harv.
J. Law & Tech. 333, 357 (2007).

2007-1130 10
development of machines and procedures in order to enhance or improve human

conditions.’’); American Heritage Dictionary of the English Language 1777 (4th ed.

2000) (“Technology” is the “application of science, especially to industrial or commercial

objectives.”); see also Sfekas, supra at 214-15 (“The [Supreme] Court’s holdings in

Benson and Diehr are really stating a requirement that inventions must be

technological.”); Schwartz, supra at 357 (The “clear and consistent body of Supreme

Court case law establishes that the term ‘invention’ encompasses anything made by

man that utilizes or harnesses one or more ‘laws of nature’ for human benefit.”). As the

Supreme Court has made clear, “the act of invention . . . consists neither in finding out

the laws of nature, nor in fruitful research as to the operation of natural laws, but in

discovering how those laws may be utilized or applied for some beneficial purpose, by a

process, a device or a machine.” United States v. Dubilier Condenser Corp., 289 U.S.

178, 188 (1933).

Methods of doing business do not apply “the law of nature to a new and useful

end.” Because the innovative aspect of such methods is an entrepreneurial rather than

a technological one, they should be deemed ineligible for patent protection. See, e.g.,

John R. Thomas, The Patenting of the Liberal Professions, 40 B.C. L. Rev. 1139 (1999)

(arguing that affording patentability to business methods opens the door to obtaining

patent protection for all aspects of human thought and behavior, and that patents should

remain grounded in science and technology) (hereinafter “Thomas (1999)”). “[T]he

primary purpose of our patent laws is not the creation of private fortunes for the owners

of patents but is ‘to promote the progress of science and useful arts.’” Motion Picture

Patents Co. v. Universal Film Mfg. Co., 243 U.S. 502, 511 (1917). Although business

2007-1130 11
method patents may do much to enrich their owners, they do little to promote scientific

research and technological innovation.

IV.

State Street has launched a legal tsunami, inundating the patent office with

applications seeking protection for common business practices. 8 Applications for Class

705 (business method) patents increased from fewer than 1,000 applications in 1997 to

more than 11,000 applications in 2007. See United States Patent and Trademark

Office, Class 705 Application Filings and Patents Issued Data, available at

http://www.uspto.gov/web/menu/pbmethod/applicationfiling.htm (information available

as of Jan. 2008); see Douglas L. Price, Assessing the Patentability of Financial Services

and Products, 3 J. High Tech. L. 141, 153 (2004) (“The State Street case has opened

the floodgates on business method patents.”).

Patents granted in the wake of State Street have ranged from the somewhat

ridiculous to the truly absurd. See, e.g., U.S. Patent No. 5,851,117 (method of training

janitors to dust and vacuum using video displays); U.S. Patent No. 5,862,223 (method

for selling expert advice); U.S. Patent No. 6,014,643 (method for trading securities);

U.S. Patent No. 6,119,099 (method of enticing customers to order additional food at a

8
Congress has acted to ameliorate some of the negative effects of granting
patents on methods of doing business. It passed the American Inventors Protection Act
(commonly referred to as the First Inventor Defense Act) which provides an affirmative
defense against a business method patent infringement action if the defendant “acting
in good faith, actually reduced the subject matter to practice at least 1 year before the
effective filing date of such patent, and commercially used the subject matter before the
effective filing date of such patent.” See 35 U.S.C. § 273. Even where a defendant
may qualify for this defense, however, he “still must engage in expensive litigation
where [he] bears the burden of affirmatively raising and proving the defense.” See
Nicholas A. Smith, Business Method Patents and Their Limits: Justifications, History,
and the Emergence of A Claim Construction Jurisprudence, 9 Mich. Telecomm. & Tech.
L. Rev. 171, 199 (2002).

2007-1130 12
fast food restaurant); U.S. Patent No. 6,329,919 (system for toilet reservations); U.S.

Patent No. 7,255,277 (method of using color-coded bracelets to designate dating status

in order to limit “the embarrassment of rejection”). There has even been a patent issued

on a method for obtaining a patent. See U.S. Patent No. 6,049,811. Not surprisingly,

State Street and its progeny have generated a thundering chorus of criticism. See Leo

J. Raskind, The State Street Bank Decision: The Bad Business of Unlimited Patent

Protection for Methods of Doing Business, 10 Fordham Intell. Prop. Media & Ent. L.J.

61, 61 (1999) (“The Federal Circuit’s recent endorsement of patent protection for

methods of doing business marks so sweeping a departure from precedent as to invite

a search for its justification.”); Pollack, supra at 119-20 (arguing that State Street was

based upon a misinterpretation of both the legislative history and the language of

section 101 and that “business method patents are problematical both socially and

constitutionally”); Price, supra at 155 (“The fall out from State Street has created a gold-

rush mentality toward patents and litigation in which companies . . . . gobble up patents

on anything and everything . . . . It is a mad rush to get as many dumb patents as

possible.” (citations and internal quotation marks omitted)); Thomas (1999), supra at

1160 (“After State Street, it is hardly an exaggeration to say that if you can name it, you

can claim it.”); Sfekas, supra at 226 (“[T]he U.S. courts have set too broad a standard

for patenting business methods. . . . These business method patents tend to be of

lower quality and are unnecessary to achieve the goal of encouraging innovation in

business.”); William Krause, Sweeping the E-Commerce Patent Minefield: The Need for

a Workable Business Method Exception, 24 Seattle U. L. Rev. 79, 101 (2000) (State

Street “opened up a world of unlimited possession to anyone quick enough to take a

2007-1130 13
business method and put it to use via computer software before anyone else.”); Moy,

supra at 1051 (“To call [the situation following State Street] distressing is an

understatement. The consensus . . . appears to be that patents should not be issuing

for new business methods.”).

There are a host of difficulties associated with allowing patents to issue on

methods of conducting business. Not only do such patents tend to impede rather than

promote innovation, they are frequently of poor quality. Most fundamentally, they raise

significant First Amendment concerns by imposing broad restrictions on speech and the

free flow of ideas.

A.

“[T]he underlying policy of the patent system [is] that ‘the things which are worth

to the public the embarrassment of an exclusive patent,’ . . . must outweigh the

restrictive effect of the limited patent monopoly.” Graham, 383 U.S. at 10-11 (quoting

letter from Thomas Jefferson to Isaac McPherson (Aug. 1813)). Thus, Congress may

not expand the scope of “the patent monopoly without regard to the . . . advancement

or social benefit gained thereby.” Id. at 6.

Patents should be granted to those inventions “which would not be disclosed or

devised but for the inducement of a patent.” Id. at 11. Methods of doing business have

existed since the earliest days of the Patent Act and have flourished even in the

absence of patent protection. See Brian P. Biddinger, Limiting the Business Method

Patent: A Comparison and Proposed Alignment of European, Japanese and United

States Patent Law, 69 Fordham L. Rev. 2523, 2544-50 (2001). Commentators have

argued that “the broad grant of patent protection for methods of doing business is

2007-1130 14
something of a square peg in a sinkhole of uncertain dimensions” since “[n]owhere in

the substantial literature on innovation is there a statement that the United States

economy suffers from a lack of innovation in methods of doing business.” Raskind,

supra at 92-93. Instead, “the long history of U.S. business is one of innovation,

emulation, and innovation again. It also is a history of remarkable creativity and

success, all without business method patents until the past few years.” Smith, supra at

178; see also Sfekas, supra at 213 (“While innovation in business methods is a good

thing, it is likely that there would be the same level of innovation even without patents

on [such methods].”).

Business innovations, by their very nature, provide a competitive advantage and

thus generate their own incentives. See Xiang, supra at 813 (“A business entity

improves the way it does business in order to be more effective and efficient, to stay

ahead of [the] competition, and to make more profit.”). The rapid “growth of fast food

restaurants, self-service gasoline stations, quick oil change facilities . . . automatic teller

devices . . . and alternatives for long-distance telephone services” casts real doubt

about the need for the additional incentive of patent protection in the commercial realm.

Raskind, supra at 93.

Although patents are not a prerequisite to business innovation, they are of

undeniable importance in promoting technological advances. For example, the

pharmaceutical industry relies on patent protection in order to recoup the large sums it

invests to develop life-saving and life-enhancing drugs:

[T]he "fully loaded" cost of developing a single new pharmaceutical
molecule, taking it though laboratory and clinical trials, and securing FDA
approval for its marketing is today about $800 million (including the cost of
project failures). Furthermore, fewer than one in five drug candidates that

2007-1130 15
 make it out of the laboratory survive this tortuous process and reach the
marketplace in the form of FDA-approved pharmaceuticals. . . . Only
patent protection can make the innovator's substantial investment in
development and clinical testing economically rational.

Jay Dratler, Jr., Alice in Wonderland Meets the U.S. Patent System, 38 Akron L. Rev.

299, 313-14 (2005) (footnotes omitted).

Business method patents, unlike those granted for pharmaceuticals and other

products, offer rewards that are grossly disproportionate to the costs of innovation. In

contrast to technological endeavors, business innovations frequently involve little or no

investment in research and development. Bilski, for example, likely spent only nominal

sums to develop his hedging method. The reward he could reap if his application were

allowed—exclusive rights over methods of managing risks in a wide array of commodity

transactions—vastly exceeds any costs he might have incurred in devising his

“invention.”

B.

“[S]ometimes too much patent protection can impede rather than ‘promote the

Progress of Science and useful Arts,’ the constitutional objective of patent and copyright

protection.” Lab. Corp. of Am. Holdings v. Metabolite Labs., Inc., 548 U.S. 124, 126

(2006) (Breyer, J., joined by Stevens and Souter, JJ., dissenting from dismissal of writ

of certiorari) (emphasis in original). This is particularly true in the context of patents on

methods of conducting business. Instead of providing incentives to competitors to

develop improved business techniques, business method patents remove building

blocks of commercial innovation from the public domain. Dreyfuss, supra at 275-77.

Because they restrict competitors from using and improving upon patented business

methods, such patents stifle innovation. When “we grant rights to exclude

2007-1130 16
unnecessarily, we . . . limit competition with no quid pro quo. Retarding competition

retards further development.” Pollack, supra at 76. “Think how the airline industry

might now be structured if the first company to offer frequent flyer miles had enjoyed the

sole right to award them or how differently mergers and acquisitions would be financed

. . . if the use of junk bonds had been protected by a patent.” Dreyfuss, supra at 264.

By affording patent protection to business practices, “the government distorts the

operation of the free market system and reduces the gains from the operation of the

market.” Sfekas, supra at 214.

It is often consumers who suffer when business methods are patented. See

Raskind, supra at 82. Patented products are more expensive because licensing fees

are often passed on to consumers. See Lois Matelan, The Continuing Controversy

Over Business Method Patents, 18 Fordham Intell. Prop. Med. & Ent. L.J. 189, 201

(2007). Further, as a general matter, “quantity and quality [of patented products] are

less than they would be in a competitive market.” Dreyfuss, supra at 275.

Patenting business methods makes American companies less competitive in the

global marketplace. American companies can now obtain exclusionary rights on

methods of conducting business, but their counterparts in Europe and Japan generally

cannot. See Biddinger, supra at 2546-47. Producing products in the United States

becomes more expensive because American companies, unlike their overseas

counterparts, must incur licensing fees in order to use patented business methods:

[O]nce a United States patent application for a new method of doing
business becomes publicly available, companies in Europe and Japan
may begin using the method outside the United States, while American
companies in competition with the patentee would be unable to use the
method in the United States without incurring licensing fees. The result is
that companies outside of the United States receive the benefit of the

2007-1130 17
 novel method without incurring either the research and development costs
of the inventor, or the licensing fees of the patentee’s American
competitors.

Id. at 2545-46.

C.

Another significant problem that plagues business method patents is that they

tend to be of poor overall quality. See eBay Inc. v. MercExchange, L.L.C., 547 U.S.

388, 397 (2006) (Kennedy, J., joined by Stevens, Souter, and Breyer, JJ., concurring)

(noting the “potential vagueness and suspect validity” of some of “the burgeoning

number of patents over business methods”). Commentators have lamented “the

frequency with which the Patent Office issues patents on shockingly mundane business

inventions.” Dreyfuss, supra at 268; see also Pollack, supra at 106 (“[M]any of the

recently-issued business method patents are facially (even farcically) obvious to

persons outside the USPTO.”). One reason for the poor quality of business method

patents is the lack of readily accessible prior art references. Because business

methods were not patentable prior to State Street, “there is very little patent-related prior

art readily at hand to the examiner corps.” Dreyfuss, supra at 269.

Furthermore, information about methods of conducting business, unlike

information about technological endeavors, is often not documented or published in

scholarly journals. See Russell A. Korn, Is Legislation the Answer? An Analysis of the

Proposed Legislation for Business Method Patents, 29 Fla. St. U.L. Rev. 1367, 1372-73

(2002). The fact that examiners lack the resources to weed out undeserving

applications “has led to the improper approval of a large number of patents, leaving

private parties to clean up the mess through litigation.” Krause, supra at 97.

2007-1130 18
 Allowing patents to issue on business methods shifts critical resources away

from promoting and protecting truly useful technological advances. As discussed

previously, the patent office has been deluged with business method applications in

recent years. Time spent on such applications is time not spent on applications which

claim true innovations. When already overburdened examiners are forced to devote

significant time to reviewing large numbers of business method applications, the public’s

access to new and beneficial technologies is unjustifiably delayed.

D.

Patenting business methods allows private parties to claim exclusive ownership

of ideas and practices which rightfully belong in the public domain. “It is a matter of

public interest that [economic] decisions, in the aggregate, be intelligent and well

informed. To this end, the free flow of commercial information is indispensable.” Virginia

State Bd. of Pharmacy v. Virginia Citizens Consumer Council, Inc., 425 U.S. 748, 765

(1976). Thus, “the stringent requirements for patent protection seek to assure that ideas

in the public domain remain there for the free use of the public.” Aronson v. Quick Point

Pencil Co., 440 U.S. 257, 262 (1979).

Bilski’s claimed method consists essentially of two conversations. The first

conversation is between a commodity provider and a commodity consumer, while the

second conversation is between the provider and “market participants” who have “a

counter-risk position to . . . consumers.” His claims provide almost no details as to the

contents of these conversations.

Like many business method applications, Bilksi’s application is very broadly

drafted. It covers a wide range of means for “hedging” in commodity transactions. If his

2007-1130 19
application were allowed, anyone who discussed ways to balance market risks in any

sort of commodity could face potential infringement liability. By adopting overly

expansive standards for patentability, the government enables private parties to impose

broad and unwarranted burdens on speech and the free flow of ideas. See Thomas F.

Cotter, A Burkean Perspective on Patent Eligibility, 22 Berkeley Tech. L.J. 855, 880-82

(2007) (arguing that overly expansive patent eligibility standards can result in the

granting of patents that threaten free speech, privacy and other constitutionally-

protected rights); John R. Thomas, The Future of Patent Law: Liberty and Property in

the Patent Law, 39 Hous. L. Rev. 569, 589 (2002) (arguing that “the patent law allows

private actors to impose more significant restraints on speech than has ever been

possible through copyright”); see also Cent. Hudson Gas & Elec. Corp. v. Pub. Serv.

Comm’n of New York, 447 U.S. 557, 569-70 (1980) (The First Amendment mandates

that restrictions on free speech in commercial transactions be “no more extensive than

necessary.”).

To the extent that business methods are deemed patentable, individuals can face

unexpected potential infringement liability for everyday conversations and commercial

interactions. “[I]mplicit in the Patent Clause itself [is the understanding] that free

exploitation of ideas will be the rule, to which the protection of a federal patent is the

exception.” Bonito Boats, Inc. v. Thunder Craft Boats, Inc., 489 U.S. 141, 151 (1989).

In the wake of State Street, too many patent holders have been allowed to claim

exclusive ownership of subject matter that rightfully belongs in the public domain.

2007-1130 20
 V.

The majority’s proposed “machine-or-transformation test” for patentability will do

little to stem the growth of patents on non-technological methods and ideas. Quite

simply, in the context of business method patent applications, the majority’s proposed

standard can be too easily circumvented. See Cotter, supra at 875 (noting that the

physical transformation test for patentability can be problematic because “[i]n a material

universe, every process will cause some sort of physical transformation, if only at the

microscopic level or within the human body, including the brain”). Through clever

draftsmanship, nearly every process claim can be rewritten to include a physical

transformation. Bilski, for example, could simply add a requirement that a commodity

consumer install a meter to record commodity consumption. He could then argue that

installation of this meter was a “physical transformation,” sufficient to satisfy the majority’s

proposed patentability test.

Even as written, Bilski’s claim arguably involves a physical transformation. Prior

to utilizing Bilski’s method, commodity providers and commodity consumers are not

involved in transactions to buy and sell a commodity at a fixed rate. By using Bilski’s

claimed method, however, providers and consumers enter into a series of transactions

allowing them to buy and sell a particular commodity at a particular price. Entering into a

transaction is a physical process: telephone calls are made, meetings are held, and

market participants must physically execute contracts. Market participants go from a

state of not being in a commodity transaction to a state of being in such a transaction.

The majority, however, fails to explain how this sort of physical transformation is

insufficient to satisfy its proposed patent eligibility standard.

2007-1130 21
 The majority suggests that a technological arts test is nothing more that a “short-

cut” for its machine-or-transformation test. Ante at 29. To the contrary, however, the two

tests are fundamentally different. Consider U.S. Patent No. 7,261,652, which is directed

to a method of putting a golf ball, U.S. Patent No. 6,368,227, which is directed to a

method of swinging on a swing suspended on a tree branch, and U.S. Patent No.

5,443,036, which is directed to a method of “inducing cats to exercise.” Each of these

“inventions” involves a physical transformation that is central to the claimed method: the

golfer’s stroke is changed, a person on a swing starts swinging, and the sedentary cat

becomes a fit feline. Thus, under the majority’s approach, each of these inventions is

patent eligible. Under a technological arts test, however, none of these inventions is

eligible for patent protection because none involves any advance in science or

technology. 9

Regardless of whether a claimed process involves a “physical transformation,” it

should not be patent eligible unless it is directed to an advance in science or

technology. See Benson, 409 U.S. at 64-71 (finding a process unpatentable even

though it “transformed” binary-coded decimals into pure binary numbers using a general

purpose computer). Although the Supreme Court has stated that a patentable process

will usually involve a transformation of physical matter, see id. at 70, it has never found

a process patent eligible which did not involve a scientific or technological innovation.

See Diehr, 450 U.S. at 192-93 (finding a process patentable where it involved new

technology for curing rubber).
9
The majority’s approach will encourage rent-seeking on a broad range of
human thought and behavior. For example, because organizing a country into a
democratic or socialist regime clearly involves a physical transformation, what is to
prevent patents from issuing on forms of government?

2007-1130 22
 The majority refuses to inject a technology requirement into the section 101

analysis because it believes that the terms “technological arts” and “technology” are

“ambiguous.” See ante at 21. To the contrary, however, the meaning of these terms is

not particularly difficult to grasp. “The need to apply some sort of ‘technological arts’

criterion has hardly led other countries’ and regions’ patent systems to grind to a halt; it

is hard to see why it should be an insurmountable obstacle for ours.” Cotter, supra at

885. As discussed more fully in section III, a claimed process is technological to the

extent it applies laws of nature to new ends. See Benson, 409 U.S. at 67 (“‘If there is to

be invention from . . . a discovery, it must come from the application of the law of nature

to a new and useful end.’” (quoting Funk Bros., 333 U.S. at 130)). By contrast, a

process is non-technological where its inventive concept is the application of principles

drawn not from the natural sciences but from disciplines such as business, law,

sociology, or psychology. See Thomas (1999), supra at 1168 (“[F]ew of us would

suppose that inventions within the domain of business, law or fine arts constitute

technology, much less patentable technology.”). The inventive aspect of Bilski’s

claimed process is the application of business principles, not laws of nature; it is

therefore non-technological and ineligible for patent protection.

Unlike a technological standard for patentability, the majority’s proposed test will

be exceedingly difficult to apply. The standard that the majority proposes for inclusion

in the patentability lexicon—“transformation of any physical object or substance, or an

electronic signal representative of any physical object or substance," ante at 28—is

unnecessarily complex and will only lead to further uncertainty regarding the scope of

patentable subject matter. As noted in In re Nuijten, 500 F.3d 1346, 1353 (Fed. Cir.

2007-1130 23
 2007), defining the term “physical” can be an “esoteric and metaphysical” inquiry.

Indeed, although this court has struggled for years to set out what constitutes sufficient

physical transformation to render a process patentable, we have yet to provide a

consistent or satisfactory resolution of this issue.

We took this case en banc in a long-overdue effort to resolve primal questions on

the metes and bounds of statutory subject matter. The patent system has run amok, and

the USPTO, as well as the larger patent community, has actively sought guidance from

this court in making sense of our section 101 jurisprudence. See Supplemental Br. of

Appellee at 3 (“[The Federal Circuit] should clarify the meaning of State Street and AT&T,

as they have been too often misunderstood.”); Br. of Fin. Serv. Indus. at 1 (“The rise of

[business method patents] in recent years has . . . led to uncertainty over the scope of the

patents granted and, more fundamentally, the definition of patentable subject matter

itself. [We] seek a workable standard defining the scope of patentable subject matter,

one that . . . provides clear guidance to the Patent and Trademark Office . . . and the

public.”); Br. of Samuelson Law, Tech. and Public Policy Clinic at 1 (“Ever since State

Street, the [USPTO] has been flooded with applications for a wide variety of non-

technological ‘inventions’ such as arbitration methods, dating methods, tax-planning

methods, legal methods, and novel-writing methods. These applications have eroded

public confidence in the patent system and driven up the cost and decreased the return

for applicants seeking legitimate technological patents.” (footnote omitted)); Br. of Assoc.

of Am. Medical Colleges at 29 (arguing that “broad swaths of the public and certain

industry sectors” have lost respect for the patent system and that “[the Federal Circuit]

should act, even if its actions mean unsettling the settled expectations of some”). The

2007-1130 24
majority, however, fails to enlighten three of the thorniest issues in the patentability

thicket: (1) the continued viability of business method patents, (2) what constitutes

sufficient physical transformation or machine-implementation to render a process

patentable, and (3) the extent to which computer software and computer-implemented

processes constitute statutory subject matter. The majority’s “measured approach” to the

section 101 analysis, see ante at 25, will do little to restore public confidence in the patent

system or stem the growth of patents on business methods and other non-technological

ideas.

VI.

Where the advance over the prior art on which the applicant relies to make his

invention patentable is an advance in a field of endeavor such as law (like the arbitration

method in Comiskey), business (like the method claimed by Bilski) or other liberal—as

opposed to technological—arts, the application falls outside the ambit of patentable

subject matter. The time is ripe to repudiate State Street and to recalibrate the

standards for patent eligibility, thereby ensuring that the patent system can fulfill its

constitutional mandate to protect and promote truly useful innovations in science and

technology. I dissent from the majority’s failure to do so.

2007-1130 25
 United States Court of Appeals for the Federal Circuit
2007-1130
(Serial No. 08/883,892)

IN RE BERNARD L. BILSKI
and RAND A. WARSAW

Appeal from the United States Patent and Trademark Office, Board of Patent Appeals
and Interferences.

RADER, Circuit Judge dissenting.

This court labors for page after page, paragraph after paragraph, explanation

after explanation to say what could have been said in a single sentence: “Because

Bilski claims merely an abstract idea, this court affirms the Board’s rejection.” If the only

problem of this vast judicial tome were its circuitous path, I would not dissent, but this

venture also disrupts settled and wise principles of law.

Much of the court’s difficulty lies in its reliance on dicta taken out of context from

numerous Supreme Court opinions dealing with the technology of the past. In other

words, as innovators seek the path to the next techno-revolution, this court ties our

patent system to dicta from an industrial age decades removed from the bleeding edge.

A direct reading of the Supreme Court’s principles and cases on patent eligibility would

yield the one-sentence resolution suggested above. Because this court, however, links

patent eligibility to the age of iron and steel at a time of subatomic particles and

terabytes, I must respectfully dissent.
 I

The Patent Law of the United States has always embodied the philosophy that

“ingenuity should receive a liberal encouragement.” Writings of Thomas Jefferson 75-

76 (Washington ed. 1871); see also Diamond v. Chakrabarty, 447 U.S. 303, 308-09

(1980). True to this principle, the original Act made “any new and useful art, machine,

manufacture or composition of matter” patent eligible. Act of Feb. 21, 1793, ch. 11, § 1,

1 Stat. 318 (emphasis supplied). Even as the laws have evolved, that bedrock principle

remains at their foundation. Thus, the Patent Act from its inception focused patentability

on the specific characteristics of the claimed invention—its novelty and utility—not on its

particular subject matter category.

The modern incarnation of section 101 holds fast to that principle, setting forth

the broad categories of patent eligible subject matter, and conditioning patentability on

the characteristics, not the category, of the claimed invention:

Whoever invents or discovers any new and useful process, machine,
manufacture, or composition of matter, or any new and useful
improvement thereof, may obtain a patent therefor, subject to the
conditions and requirements of this title.

35 U.S.C. § 101 (2006) (emphases supplied). As I have suggested, the Supreme Court

requires this court to rely on the “ordinary, contemporary, common meaning” of these

words. Diamond v. Diehr, 450 U.S. 175, 182 (1981). If this court would follow that

Supreme Court rule, it would afford broad patent protection to new and useful inventions

that fall within the enumerated categories and satisfy the other conditions of

patentability. That is, after all, precisely what the statute says.

In Diehr, the Supreme Court adopted a very useful algorithm for determining

patentable subject matter, namely, follow the Patent Act itself. After setting forth the

2007-1130 2
procedural history of that case, the Supreme Court stated: “In cases of statutory

construction, we begin with the language of the statute.” Diehr, 450 U.S. at 182. With

an eye to the Benson language (so central to this court’s reasoning) that

“[t]ransformation and reduction of an article ‘to a different state or thing’ is the clue to

the patentability of a process claim that does not include particular machines,”

Gottschalk v. Benson, 409 U.S. 63, 72 (1972), the Court then noted:

[I]n dealing with the patent laws, we have more than once cautioned that
“courts ‘should not read into the patent laws limitations and conditions
which the legislature has not expressed.’”

Diehr, 450 U.S. at 182 (citations omitted). Indeed section 101’s term “process” contains

no hint of an exclusion for certain types of methods. This court today nonetheless holds

that a process is eligible only if it falls within certain subsets of “process.” Ironically the

Patent Act itself specifically defines “process” without any of these judicial innovations.

35 U.S.C. § 100(b). Therefore, as Diehr commands, this court should refrain from

creating new circuitous judge-made tests.

Read in context, section 101 gives further reasons for interpretation without

innovation. Specifically, section 101 itself distinguishes patent eligibility from the

conditions of patentability—providing generously for patent eligibility, but noting that

patentability requires substantially more. The language sweeps in “any new and useful

process . . . [and] any improvement.” 35 U.S.C. § 101 (emphasis supplied). As an

expansive modifier, “any” embraces the broad and ordinary meanings of the term

“process,” for instance. The language of section 101 conveys no implication that the

Act extends patent protection to some subcategories of processes but not others. It

does not mean “some” or even “most,” but all.

2007-1130 3
 Unlike the laws of other nations that include broad exclusions to eligible subject

matter, such as European restrictions on software and other method patents, see

European Patent Convention of 1973, Art. 52(2)(c) and (3), and prohibitions against

patents deemed contrary to the public morality, see id. at Art. 53(a), U.S. law and policy

have embraced advances without regard to their subject matter. That promise of

protection, in turn, fuels the research that, at least for now, makes this nation the world’s

innovation leader.

II

With all of its legal sophistry, the court’s new test for eligibility today does not

answer the most fundamental question of all: why would the expansive language of

section 101 preclude protection of innovation simply because it is not transformational

or properly linked to a machine (whatever that means)? Stated even more simply, why

should some categories of invention deserve no protection?

This court, which reads the fine print of Supreme Court decisions from the

Industrial Age with admirable precision, misses the real import of those decisions. The

Supreme Court has answered the fundamental question above many times. The

Supreme Court has counseled that the only limits on eligibility are inventions that

embrace natural laws, natural phenomena, and abstract ideas. See, e.g., Diehr, 450

U.S. at 185 (“This Court has undoubtedly recognized limits to § 101 and every discovery

is not embraced within the statutory terms. Excluded from such patent protection are

laws of nature, natural phenomena, and abstract ideas.”). In Diehr, the Supreme

Court’s last pronouncement on eligibility for “processes,” the Court said directly that its

only exclusions from the statutory language are these three common law exclusions:

2007-1130 4
“Our recent holdings . . . stand for no more than these long-established principles.” Id.

at 185.

This point deserves repetition. The Supreme Court stated that all of the

transformation and machine linkage explanations simply restated the abstractness rule.

In reading Diehr to suggest a non-statutory transformation or preemption test, this court

ignores the Court’s admonition that all of its recent holdings do no more than restate the

natural laws and abstractness exclusions. Id.; see also Chakrabarty, 447 U.S. at 310

(“Here, by contrast, the patentee has produced a new bacterium with markedly different

characteristics from any found in nature and one having the potential for significant

utility. His discovery is not nature’s handiwork, but his own; accordingly it is patentable

subject matter under § 101.”); Parker v. Flook, 437 U.S. 584, 591-594 (1978) (“Even

though a phenomenon of nature or mathematical formula may be well known, an

inventive application of the principle may be patented. Conversely, the discovery of

such a phenomenon cannot support a patent unless there is some other inventive

concept in its application.”); In re Taner, 681 F.2d 787, 791 (C.C.P.A 1982) (“In Diehr,

the Supreme Court made clear that Benson stands for no more than the long-

established principle that laws of nature, natural phenomena, and abstract ideas are

excluded from patent protection.”).

The abstractness and natural law preclusions not only make sense, they explain

the purpose of the expansive language of section 101. Natural laws and phenomena

can never qualify for patent protection because they cannot be invented at all. After all,

God or Allah or Jahveh or Vishnu or the Great Spirit provided these laws and

phenomena as humanity’s common heritage. Furthermore, abstract ideas can never

2007-1130 5
qualify for patent protection because the Act intends, as section 101 explains, to provide

“useful” technology. An abstract idea must be applied to (transformed into) a practical

use before it qualifies for protection. The fine print of Supreme Court opinions conveys

nothing more than these basic principles. Yet this court expands (transforms?) some

Supreme Court language into rules that defy the Supreme Court’s own rule.

When considering the eligibility of “processes,” this court should focus on the

potential for an abstract claim. Such an abstract claim would appear in a form that is

not even susceptible to examination against prior art under the traditional tests for

patentability. Thus this court would wish to ensure that the claim supplied some

concrete, tangible technology for examination. Indeed the hedging claim at stake in this

appeal is a classic example of abstractness. Bilski’s method for hedging risk in

commodities trading is either a vague economic concept or obvious on its face.

Hedging is a fundamental economic practice long prevalent in our system of commerce

and taught in any introductory finance class. In any event, this facially abstract claim

does not warrant the creation of new eligibility exclusions.

III

This court’s willingness to venture away from the statute follows on the heels of

an oft-discussed dissent from the Supreme Court’s dismissal of its grant of certiorari in

Lab. Corp. of Am. Holdings v. Metabolite Labs., Inc., 548 U.S. 124 (2006). That dissent

is premised on a fundamental misapprehension of the distinction between a natural

phenomenon and a patentable process.

The distinction between “phenomena of nature,” “mental processes,” and

“abstract intellectual concepts” is not difficult to draw. The fundamental error in that Lab

2007-1130 6
Corp. dissent is its failure to recognize the difference between a patent ineligible

relationship—i.e., that between high homocysteine levels and folate and cobalamin

deficiencies—and a patent eligible process for applying that relationship to achieve a

useful, tangible, and concrete result—i.e., diagnosis of potentially fatal conditions in

patients. Nothing abstract here. Moreover, testing blood for a dangerous condition is

not a natural phenomenon, but a human invention.

The distinction is simple but critical: A patient may suffer from the unpatentable

phenomenon of nature, namely high homocysteine levels and low folate. But the

invention does not attempt to claim that natural phenomenon. Instead the patent claims

a process for assaying a patient’s blood and then analyzing the results with a new

process that detects the life-threatening condition. Moreover, the sick patient does not

practice the patented invention. Instead the patent covers a process for testing blood

that produces a useful, concrete, and tangible result: incontrovertible diagnostic

evidence to save lives. The patent does not claim the patent ineligible relationship

between folate and homocysteine, nor does it foreclose future inventors from using that

relationship to devise better or different processes. Contrary to the language of the

dissent, it is the sick patient who “embod[ies] only the correlation between

homocysteine and vitamin deficiency,” Lab. Corp., 548 U.S. at 137, not the claimed

process.

From the standpoint of policy, the Lab Corp. dissent avoids the same

fundamental question that the Federal Circuit does not ask or answer today: Is this

entire field of subject matter undeserving of incentives for invention? If so, why? In the

context of Lab. Corp. that question is very telling: the natural condition diagnosed by

2007-1130 7
the invention is debilitating and even deadly. See U.S. Patent No. 4,940,658, col. 1, ll.

32-40 (“Accurate and early diagnosis of cobalamin and folate deficiencies . . . is

important because these deficiencies can lead to life-threatening hematologic

abnormalities . . . . Accurate and early diagnosis of cobalamin deficiency is especially

important because it can also lead to incapacitating and life-threatening

neuropsychiatric abnormalities.”). Before the invention featured in Lab Corp., medical

science lacked an affordable, reliable, and fast means to detect this debilitating

condition. Denial of patent protection for this innovation—precisely because of its

elegance and simplicity (the chief aims of all good science)—would undermine and

discourage future research for diagnostic tools. Put another way, does not Patent Law

wish to encourage researchers to find simple blood tests or urine tests that predict and

diagnose breast cancers or immunodeficiency diseases? In that context, this court

might profitably ask whether its decisions incentivize research for cures and other

important technical advances. Without such attention, this court inadvertently advises

investors that they should divert their unprotectable investments away from discovery of

“scientific relationships” within the body that diagnose breast cancer or Lou Gehrig’s

disease or Parkinson’s or whatever.

IV

In sum, this court today invents several circuitous and unnecessary tests. It

should have merely noted that Bilski attempts to patent an abstract idea. Nothing more

was needed. Instead this opinion propagates unanswerable questions: What form or

amount of “transformation” suffices? When is a “representative” of a physical object

sufficiently linked to that object to satisfy the transformation test? (e.g., Does only vital

2007-1130 8
sign data taken directly from a patient qualify, or can population data derived in part

from statistics and extrapolation be used?) What link to a machine is sufficient to invoke

the “or machine” prong? Are the “specific” machines of Benson required, or can a

general purpose computer qualify? What constitutes “extra-solution activity?” If a

process may meet eligibility muster as a “machine,” why does the Act “require” a

machine link for a “process” to show eligibility? Does the rule against redundancy itself

suggest an inadequacy in this complex spider web of tests supposedly “required” by the

language of section 101?

One final point, reading section 101 as it is written will not permit a flurry of

frivolous and useless inventions. Even beyond the exclusion for abstractness, the final

clause of section 101—“subject to the conditions and requirements of this title”—

ensures that a claimed invention must still satisfy the “conditions and requirements” set

forth in the remainder title 35. Id. These statutory conditions and requirements better

serve the function of screening out unpatentable inventions than some vague

“transformation” or “proper machine link” test.

In simple terms, the statute does not mention “transformations” or any of the

other Industrial Age descriptions of subject matter categories that this court endows with

inordinate importance today. The Act has not empowered the courts to impose

limitations on patent eligible subject matter beyond the broad and ordinary meaning of

the terms process, machine, manufacture, and composition of matter. It has instead

preserved the promise of patent protection for still unknown fields of invention.

Innovation has moved beyond the brick and mortar world. Even this court’s test,

with its caveats and winding explanations seems to recognize this. Today’s software

2007-1130 9
transforms our lives without physical anchors. This court’s test not only risks hobbling

these advances, but precluding patent protection for tomorrow’s technologies. “We still

do not know one thousandth of one percent of what nature has revealed to us.”

Attributed to Albert Einstein. If this court has its way, the Patent Act may not incentivize,

but complicate, our search for the vast secrets of nature. When all else fails, consult the

statute.

2007-1130 10