Legal Research AI

Data General Corp. v. Grumman Systems Support Corp.

Court: Court of Appeals for the First Circuit
Date filed: 1994-09-15
Citations: 36 F.3d 1147
Copy Citations
215 Citing Cases
Combined Opinion
                United States Court of Appeals
                                              
                    For the First Circuit
                                         

No. 93-1637
       

              DATA GENERAL CORPORATION, ET AL.,
                                               

                    Plaintiffs, Appellees,
                                          

                              v.
                                

             GRUMMAN SYSTEMS SUPPORT CORPORATION,
                                                 

                    Defendant, Appellant.
                                         

                                         

         APPEAL FROM THE UNITED STATES DISTRICT COURT
                                                     

              FOR THE DISTRICT OF MASSACHUSETTS
                                               

    [Hon. Walter Jay Skinner, Senior U.S. District Judge]
                                                        

                                         

                            Before

                   Torruella, Cyr and Stahl,
                       Circuit Judges.
                                     

                                         

Charles A. Gilman, with whom Cahill,  Gordon & Reindel, Robert  A.
                                                                  
Alessi,  Marshall Cox,  Allen  S. Joslyn,  Immanuel  Kohn, William  T.
                                                                  
Lifland, Gerard M. Meistrell, Roy L. Regozin, Dean Ringel, Laurence T.
                                                                  
Sorkin, Goodwin, Procter &  Hoar, and Coudert Brothers, were  on brief
                                                  
for appellant.
Robert S. Frank, Jr., with whom Robert M. Buchanan,Jr., 
                                                      
Brian A. Davis,  Choate, Hall &  Stewart, Jacob  Frank, and Morris  G.
                                                                  
Nicholson, were on brief for appellees.
     

                                         

                      September 14, 1994
                                         

          STAHL,  Circuit Judge.    Grumman  Systems  Support
          STAHL,  Circuit Judge.
                               

Corporation ("Grumman") assigns error to the district court's

handling  of litigation  arising from  Grumman's acquisition,

duplication,  and use  of  MV/Advanced  Diagnostic  Executive

System  ("ADEX"), a sophisticated  computer program developed

by Data  General Corporation  ("DG") to diagnose  problems in

DG's MV  computers.   DG claimed  that Grumman had  infringed

DG's  ADEX  copyrights  and  misappropriated   trade  secrets

embodied  in ADEX.  A jury agreed, awarding DG $27,417,000 in

damages (excluding prejudgment interest and attorney's fees).

Grumman   contends  that   the  district   court  prematurely

dismissed  its  affirmative  defenses and  counterclaims  and

committed several errors during and after the trial.  

          While this case raises  numerous issues touching on

copyright   law,  Grumman's   most  intriguing   argument  --

presented  below as both a  defense and a  counterclaim -- is

that DG illegally maintained its  monopoly in the market  for

service of  DG computers by unilaterally  refusing to license

ADEX to Grumman and other competitors.   The antitrust claims

are  intriguing  because  they present  a  curious  conflict,

namely, whether (and  to what extent) the  antitrust laws, in

the absence of any  statutory exemption, must tolerate short-

term harm to the competitive process when such harm is caused

by the  otherwise lawful  exercise of an  economically potent

"monopoly" in a copyrighted work.

                             -2-
                              2

          After a careful analysis, we affirm  on all but one

relatively minor issue concerning the calculation of damages.

                              I.
                                

                         BACKGROUND1
                         BACKGROUND
                                   

          DG and  Grumman are  competitors in the  market for

service  of computers  manufactured  by DG,  and the  present

litigation   stems  from   the  evolving   nature  of   their

competitive   relationship.     DG   not  only   designs  and

manufactures computers,  but also  offers a line  of products

and services for the maintenance and  repair of DG computers.

Although  DG has  no  more  than a  5%  share  of the  highly

competitive "primary market"  for mini-computers, DG occupies

approximately  90% of  the  "aftermarket" for  service of  DG

computers.   As  a group,  various "third  party maintainers"

("TPMs") earn roughly 7% of the service revenues;  Grumman is

the  leading  TPM  with  approximately 3%  of  the  available

service business.  The remaining equipment owners  (typically

large  companies in  the high technology  industry) generally

maintain their own computers  and peripherals, although  they

occasionallyneed outsideservice ona"time andmaterials" basis.

                    

1.  Because  the bulk  of the  fact-related issues  on appeal
concern  the  district  court's  analysis of  the  record  on
summary  judgment, we  generally  present the  evidence in  a
light most favorable to  Grumman.  See, e.g., Levy v. FDIC, 7
                                                          
F.3d  1054, 1056 (1st Cir. 1993).  Naturally, where the story
touches  on  matters  necessarily  decided by  the  jury,  we
present the evidence in a manner most favorable to DG.   See,
                                                            
e.g.,  Toucet v. Maritime Overseas Corp., 991 F.2d 5, 11 (1st
                                        
Cir. 1993) (review of jury's damage award).

                             -3-
                              3

A.  Computer Service: Outputs and Inputs
                                        

          Support service for DG computers entails  a variety

of  activities  and  a   corresponding  array  of  goods  and

services.   The  principal  activities  are  maintenance  and

repair of  computer equipment.  Maintenance  includes care of

parts  subject to failure as well  as replacement of hardware

components to bring  equipment up to  date.  Repair  involves

the diagnosis  and correction  of hardware failure.   Service

technicians  remedy  equipment  problems either  by  actually

mending a malfunctioning part (e.g., reformatting a  "broken"

disk drive) or replacing the part.

          Each  of these  support  service "outputs"  benefit

from a range  of "inputs."   For example, engineering  change

orders,  along with  certain documentation  and parts,  allow

service technicians to make technological updates to computer

hardware.  In order to identify the existence and location of

a  malfunctioning   part,  a  service   technician  may   use

diagnostics   (now   increasingly  sophisticated   software),

schematics  (maps of  the location  and function  of hardware

elements), and various types  of documentation, together with

the  technician's  own   experience  acquired  by  diagnosing

equipment   problems.     In   order  to   actually  mend   a

malfunctioning part, a  technician might fix the  part on the

spot with  routine tools  or sophisticated software  (e.g., a

software diagnostic that  can reformat a disk drive), or send

                             -4-
                              4

the part to  a repair  depot run either  by the  technician's

employer  or another service  organization.  The  repair of a

malfunctioning part often  requires very detailed information

about  the   part  (such  as  the   information  provided  by

schematics and other documentation),  and may in turn require

smaller  replacement parts.   Finally,  replacement of  parts

naturally  requires the availability of  spares.  At the core

of  this litigation is  a dispute  about Grumman's  access to

software diagnostics and other service "tools" produced by DG

for  use  in the  repair,  upgrading, and  maintenance  of DG

equipment.

B.  TPM Access to Service Inputs
                                

          DG's policies concerning TPM access to DG's service

tools have  developed over  time.   As described  below, DG's

policies have evolved through three stages.

          1.  Initial Suspicion
                               

          TPMs  made their debut  in the  1970s while  DG was

still  relatively new  to the computer  manufacturing market.

DG  was  suspicious of  the ability  of  TPMs, often  run and

staffed  by former  DG technicians,  to service  DG computers

without running afoul of DG's intellectual property rights or

confidentiality agreements binding on former DG employees.

          In 1975,  DG  converted its  suspicions into  legal

claims, filing suit against Lloyd Root and Robert Montgomery,

two  of its  former employees,  as well  as  Computer Systems

                             -5-
                              5

Support  Corporation  ("CSSC"),   the  TPM   that  Root   and

Montgomery  had founded  after leaving  DG.2   DG's principal

allegations were that Root  and Montgomery had breached their

employment agreements by taking DG information with them when

they  left  DG,  and  that CSSC  personnel  had  been  making

unauthorized  use  of DG  proprietary  information.   It  was

unclear, however, whether the proprietary items that CSSC was

using  were  items  sold  or  licensed  to  equipment  owners

(pursuant to agreements which  arguably permitted some use by

TPMs),3  or  items  taken  directly  from   DG  by  Root  and

Montgomery.

          Lacking promising proof to  support its claims,  DG

proposed a settlement whereby CSSC would agree to return  any

proprietary  information that Root  and Montgomery unlawfully

took  from DG, and DG would expressly authorize CSSC (and its

successors)   to  use  DG   proprietary  information  in  the

maintenance and repair of DG computers.4   CSSC accepted, and

                    

2.  For the sake of simplicity, we will refer to all three of
the 1975 defendants as "CSSC."

3.  There is some evidence  that during the 1970s DG  sold or
licensed  proprietary information  to equipment  owners under
agreements which  permitted owners to allow  third parties to
use that information to service the owners' computers. 

4.  DG and  Grumman (which acquired CSSC  in 1984) vigorously
dispute the precise  scope of this authorization.   See infra
                                                             
Sections II.C.1.a and III.A.3.

                             -6-
                              6

the  parties  signed a  settlement  agreement  in 1976  ("the

Settlement Agreement").5

          2.  Peaceful Coexistence
                                  

          From  1976 until  some point  in the  mid-1980s, DG

affirmatively encouraged the growth  of TPMs with  relatively

liberal policies concerning TPM access to service tools.   DG

sold or  licensed diagnostics  directly to TPMs,  and allowed

TPMs to  use  diagnostics sold  or licensed  to DG  equipment

owners. DG did  not restrict  access by TPMs  to spare  parts

manufactured by DG or other manufacturers.  DG allowed (or at

least  tolerated) requests by  TPMs for DG's  repair depot to

fix malfunctioning circuit boards,  the heart of a computer's

central  processing  unit ("CPU").    DG sold  at  least some

schematics and  other documentation  to TPMs.   DG  also sold

TPMs engineering change order kits.  And finally, DG training

classes  were open to TPM  field engineers.  Grumman suggests

that  DG's liberal  policies  were beneficial  to DG  because

increased capacity (and  perhaps competition) in  the service

aftermarket would be a selling point for DG equipment.6

          3.  Increased Restrictions
                                    

                    

5.  Another provision of the Settlement  Agreement prohibited
CSSC from  using DG proprietary information in  the design or
manufacture of  computer equipment.  That provision is not at
issue in this case.

6.  Grumman  acquired  CSSC  in   1984,  thereby  becoming  a
successor  in  interest  to  CSSC's  rights  under  the  1976
Settlement Agreement.

                             -7-
                              7

          In the  mid-1980s, DG  altered its strategy.   With

the goal of maximizing revenues from its service business, DG

began to  refuse to  provide many  service tools  directly to

TPMs.   DG would not allow  TPMs to use the  DG repair depot,

nor   would  it   permit   TPMs   to   purchase   schematics,

documentation, "change  order" kits, or certain  spare parts.

DG no longer  allowed TPM technicians  to attend DG  training

classes.   Finally, DG developed and  severely restricted the

licensing  of ADEX,  a  new software  diagnostic  for its  MV

computers.   The  MV series  was at  once DG's  most advanced

computer hardware  and an  increasingly  important source  of

sales and service revenue for DG.

          A number of items unavailable to TPMs directly from

DG  were  either  available  to all  equipment  owners  (even

customers  of TPMs) from DG,  or were available  to TPMs from

sources other than DG.  For example, DG depot service, change

order kits, and at least some documentation were available to

all equipment  owners.  There  is also evidence  that Grumman

had  its own repair depot and that  Grumman could make use of

repair depots  run by other service  organizations (sometimes

called  "fourth  party  maintainers").   Likewise,  there  is

evidence that  TPMs could purchase at least  some spare parts

from sources other than DG.  

          The situation  was different with  respect to ADEX.

DG service  technicians would use ADEX  in performing service

                             -8-
                              8

for DG equipment owners.  DG would also license  ADEX for the

exclusive use of the in-house technicians of equipment owners

who  perform most of their  own service.7   However, DG would

not  license  ADEX to  its own  service  customers or  to the

customers  of  TPMs.   Nor was  ADEX  available to  TPMs from

sources other  than  DG.    At least  two  other  diagnostics

designed  to  service  DG's  MV  computers  may  have  become

available  as   early  as  1989,  but   no  fully  functional

substitute was available when this case was tried in 1992.

          Grumman  found  various  ways  to  skirt  DG's ADEX

restrictions.   Some  former  DG employees,  in violation  of

their employment agreements, brought copies of ADEX when they

joined Grumman.  In addition, DG field engineers often stored

copies  of ADEX at the work sites of their service customers,

who  were bound  to  preserve the  confidentiality of  any DG

proprietary information  in  their possession.   Although  DG

service customers had an obligation to return  copies of ADEX

to DG should they  cancel their service agreement and  switch

to a TPM, few customers did so.  It is essentially undisputed

that Grumman  technicians used and duplicated  copies of ADEX

left  behind   by  DG  field   engineers.    There   is  also

uncontroverted evidence that Grumman actually acquired copies

of  ADEX in  this manner  in order  to maintain  libraries of

                    

7.  This latter group is comprised of Cooperative Maintenance
Organizations ("CMOs").

                             -9-
                              9

diagnostics   so  that   Grumman  technicians   could  freely

duplicate  and use  any  copy  of  ADEX  to  service  any  of

Grumman's customers with DG's MV computers.

                             -10-
                              10

C.  The Present Litigation
                          

          In  1988,  DG filed  suit  against  Grumman in  the

United   States   District   Court   for   the   District  of

Massachusetts.8    DG  patterned  its suit  after  a  similar

action it brought against Service & Training, Inc. ("STI") in

the  United  States  District   Court  for  the  District  of

Maryland.    See Service  &  Training, Inc.  v.  Data General
                                                             

Corp.,  737  F.  Supp. 334  (D.  Md.  1990),  aff'd on  other
                                                             

grounds,  963  F.2d 680  (4th Cir.  1992)  ("STI").   STI was
                                                

another  TPM  in  the  DG  aftermarket  and  a  successor  to

Montgomery's interest  in the 1976 Settlement  Agreement.  In

one count, DG  alleged that Grumman's use  and duplication of

ADEX infringed DG's ADEX copyrights, and requested injunctive

relief, 17 U.S.C.   502 (1988), as well as actual damages and

profits, 17 U.S.C.    504(b)  (1988).  In  another count,  DG

alleged that Grumman had violated Massachusetts trade secrets

law  by  misappropriating  copies  of ADEX  in  violation  of

confidentiality agreements binding on former DG employees and

DG service customers.   On  December 29,  1988, the  district

court issued  a  preliminary injunction  prohibiting  Grumman

                    

8.  Grumman subsequently filed an action in the United States
District  Court  for  the  Northern  District  of  California
alleging that DG  had violated  California's antitrust  laws.
See Grumman  Sys. Support  Corp. v.  Data General  Corp., 125
                                                        
F.R.D.  160  (N.D. Cal.  1988).   That court  later dismissed
Grumman's  action  on  the  grounds  that  the  claim  was  a
compulsory counterclaim to DG's copyright infringement action
pending in the District of Massachusetts.  Id.
                                              

                             -11-
                              11

from  using ADEX.   See  Data General  Corp. v.  Grumman Sys.
                                                             

Support  Corp.,  No.  88-0033-S  (D.  Mass.  Dec.  29,  1988)
              

("Grumman I").9  The parties then prepared for trial.10
           

          1.  Pre-Trial Issues
                              

          Grumman raised a host  of affirmative defenses  and

counterclaims, all eventually rejected  by the district court

in  response to  DG's motions  for partial  summary judgment.

Three  of  these  issues  play a  pivotal  role  in Grumman's

appeal.

               a.  1976 Settlement Agreement
                                            

               Grumman  alleged  that  the   1976  Settlement

Agreement authorized it (as a successor to CSSC) to "acquire,

possess, copy  and use"  all DG diagnostics,  including ADEX.

Liberally construed, Grumman's allegation of a right to "copy

and use" ADEX fairly includes an allegation that  Grumman has

                    

9.  The jury subsequently found that Grumman continued to use
ADEX  in  violation  of  the  injunction.   That  finding  is
unchallenged on appeal.

10.  In the course of the pre- and post-trial litigation, the
district court  issued a series of  published and unpublished
opinions which  contain additional background material.  See,
                                                            
e.g., Data General  Corp. v. Grumman Sys. Support  Corp., 761
                                                        
F. Supp.  185 (D.  Mass. 1991)  ("Grumman II"); Data  General
                                                             
Corp. v. Grumman Sys. Support  Corp., No. 88-0033-S (D. Mass.
                                    
May 2, 1991) ("Grumman III");  Data General Corp. v.  Grumman
                                                             
Sys.  Support  Corp.,  795  F.  Supp.  501  (D.  Mass.  1992)
                    
("Grumman IV");  Data General  Corp. v. Grumman  Sys. Support
                                                             
Corp., 834 F. Supp.  477 (D. Mass. 1992) ("Grumman  V"); Data
                                                             
General Corp. v. Grumman Sys. Support Corp., 825 F. Supp. 340
                                           
(D. Mass. 1993) ("Grumman VI"); Data General Corp. v. Grumman
                                                             
Sys.  Support  Corp.,  825  F.  Supp.  361  (D.  Mass.  1993)
                    
("Grumman VII"). 
             

                             -12-
                              12

a  right  to  copy and  use  DG  diagnostic  software in  the

possession of  DG equipment  owners.  Judge  Skinner rejected

the Settlement Agreement defense by adopting the reasoning of

the  STI courts, which had  rebuffed the same  arguments on a
        

nearly identical record.  See Grumman V, 834 F. Supp. at 482-
                                       

83.   In  the  district court  decision  in STI,  Judge  Motz
                                               

analyzed the language of  the Settlement Agreement, testimony

from the  lawyers  who negotiated  it,  and evidence  of  the

parties' subsequent conduct.  737 F. Supp. at 339-41.  On the

basis  of  this  evidence,  Judge  Motz  concluded  that  the

Settlement  Agreement  did  not  require DG  to  license  any

proprietary information to CSSC or its customers, nor did the

Settlement Agreement  prevent DG  from prohibiting  CSSC from

copying and  using proprietary information in  the custody of

DG service customers.  Id.11 
                          

               b.  Antitrust Defenses
                                     

          Grumman also claimed that DG could not maintain its

infringement action  because DG had used  its ADEX copyrights

to violate Sections 1  and 2 of the Sherman Antitrust Act, 15

U.S.C.     1 and  2 (1988 & Supp.  IV 1992).12  Specifically,

Grumman charged that  DG misused its copyrights  by (1) tying

                    

11.  Although   the   reasoning  of   the   Fourth  Circuit's
affirmance differed  from that of Judge Motz on other issues,
the  two courts appear to  have been in  total agreement with
respect to the Settlement Agreement issue.

12.  Grumman  presented the  antitrust claims  as independent
counterclaims as well.

                             -13-
                              13

the availability of ADEX to a  consumer's agreement either to

purchase DG  support services  (a "positive tie")  or not  to

purchase support  services from TPMs (a  "negative tie"), and

(2)   willfully  maintaining  its  monopoly  in  the  support

services  aftermarket by  imposing  the  alleged  tie-in  and

refusing to deal with TPMs.

          Concerning  the tying  claim,  the  district  court

again  adopted the reasoning  of the  Fourth Circuit  in STI,
                                                            

this  time for  the proposition  that there  was insufficient

proof  of a  tying agreement  to withstand  summary judgment.

Grumman V, 834  F. Supp. at 484-85.  The  Fourth Circuit held
         

that there was  no positive tie for  two independent reasons.

First,  the court noted that DG did not actually license ADEX

to its service customers.  STI,  963 F.2d at 686-87.  Second,
                              

the  court held that there  was not enough  evidence to prove

that  any license to use ADEX was conditioned on the purchase

of DG  support services.  Id.  at 687.  The  court noted that
                             

there  was  no  explicit   tying  condition  in  any  written

agreement.   Id.    The  court  also  noted  that  there  was
                

insufficient evidence  of unwilling  purchases of  DG support

service  so  as  to  justify  an  inference  of  an  implicit

condition; customers may  simply prefer service supported  by

ADEX  diagnostics over service that  is not.   Id. at 687-88.
                                                  

The court  further held that there  was insufficient evidence

of  a negative tie because,  on the record  before the court,

                             -14-
                              14

"[t]he  fact that CMOs do not  purchase repair services . . .

is at least as consistent with the legitimate and independent

business decision not to purchase  unneeded services as it is

with an agreement  not to  purchase such services."   Id.  at
                                                         

686.

          Judge Skinner conducted his own exhaustive analysis

of the  monopolization claim, concluding that  Grumman failed

to  "assert[]  any  facts  that would  indicate  that  DG has

engaged in  any unlawful exclusionary conduct."   Grumman II,
                                                            

761  F. Supp.  at 192.   The  court essentially  narrowed the

question to whether DG's restrictive policies with respect to

TPMs  constitute   unlawful  unilateral  refusals   to  deal,

reasoning  that  DG's actions  do not  rise  to the  level of

unlawful exclusionary conduct for several reasons.  The court

agreed  with Grumman that this case, like Aspen Skiing Co. v.
                                                          

Aspen  Highlands Skiing  Corp., 472  U.S. 585  (1985), raises
                              

"the issue of prior promotion of competition in a market that

is  later halted,"  Grumman II,  761  F. Supp.  at 190.   The
                              

district court  nonetheless concluded that Grumman had failed

to   demonstrate   that   DG's   restrictive   policies  have

unreasonably harmed the competitive  process.  In particular,

the  court  noted that  DG's  policies with  respect  to most

service products  do not prevent  TPMs from competing  in the

service market  because "DG  will sell its  service products,

except  [ADEX  and  schematics],  to  any  ultimate  consumer

                             -15-
                              15

regardless of whether  [the consumer] now  or later use[s]  a

TPM."  Id. at 191.   The court also observed that  "TPMs have
          

demonstrated  the  ability  to develop  diagnostics  [without

schematics], even  if they are not as  efficient as MV/ADEX."

Id.  Lastly, the  court suggested that the Sherman  Act would
   

not compel  DG to disclose  its schematics,  in part  because

such compulsory disclosure would  undermine the incentives of

copyright and patent laws.  Id. at 192.13
                               

          In rejecting Grumman's  motion for  reconsideration

of the grant of summary judgment on the monopolization claim,

the   district  court   also  directly   addressed  Grumman's

contention  that  DG's  refusal   to  license  ADEX  to  TPMs

constitutes exclusionary conduct.  The court stated that DG's

refusal to license ADEX to  TPMs was not exclusionary because

"DG  offers to  the public a  license to  use MV/ADEX  on any

computer  owned by the customer,"  and therefore DG "`did not

withhold from one member  of the public a service  offered to

the rest[.]'"   Grumman III,  slip op. at  5 (citing  Olympia
                                                             

Equip. Leasing Co. v.  Western Union Tel. Co., 797  F.2d 370,
                                             

377 (7th Cir. 1986), cert. denied, 480 U.S. 934 (1987)).
                                 

               c.  Federal Preemption  of State Trade Secrets
                                                             
               Claim
                    

                    

13.  The district court also held  that neither ADEX nor DG's
schematics   were  "essential  facilities"   that  DG  (as  a
monopolist in  the service  aftermarket) must share  with its
competitors.  Id. at  191-92.  Grumman does not  assign error
                 
to this aspect of the district court's decision.

                             -16-
                              16

          Grumman  unsuccessfully  sought  to   convince  the

district court that Section 301 of the Copyright Act of 1976,

17 U.S.C.    301 (1988 & Supp. IV 1992),  preempts DG's state

law  action  for  misappropriation  of trade  secrets.    The

district court  held that  DG's trade  secrets claim  was not

preempted because DG did not simply allege conduct equivalent

to  the  copying  and   use  which  form  the  basis   of  an

infringement  claim;  instead, DG's  trade secrets  claim was

based  on  Grumman's  acquisition  of ADEX  in  violation  of

confidentiality agreements binding on former DG employees and

service customers.  Grumman IV, 795 F. Supp. at 507.
                              

          2.  Trial Issues
                          

          Stripped  of  its  affirmative   defenses,  Grumman

proceeded to  trial.  Grumman focused  its defensive energies

in two areas.  Grumman attacked DG's proof of the prima facie

elements  of copyright  infringement and  misappropriation of

trade secrets, and   attempted to undermine DG's broad-gauged

request for compensation for lost profits and disgorgement of

Grumman's MV-related profits.

               a.  Validity of Copyright Registration
                                                     

          During  the trial,  it became  evident that  DG had

made  several  errors  in  registering its  ADEX  copyrights.

After  Edward Gove,  a  DG official,  testified  that DG  had

deposited with  the Copyright Office the  correct excerpts of

                             -17-
                              17

human-readable "source code,"14  Grumman introduced  evidence

that there were  some errors  in the deposits  for the  first

three  versions  of  ADEX.     In  rebuttal  testimony,  Gove

confirmed  that there  were  a number  of minor,  inadvertent

errors in the deposits that would not affect the operation of

the programs.15

          Grumman argued to the district court that any error

in a copyright deposit  renders the registration invalid, and

requested  that the court so instruct the jury.  The district

court  refused,  instructing  the  jury  instead  that minor,

inadvertent  errors in  the deposit  of excerpts  of computer

code  do   not  threaten   the  validity  of   the  copyright

registration.   As  a fall-back  tactic, Grumman  renewed its

previous request that the district court compel DG to produce

the  entire human-readable  source code  for each  version of

ADEX so  that  Grumman could  more effectively  cross-examine

Gove about  the  significance of  the errors.   The  district

court refused to do so, and later explained its discretionary

decision by finding that "Grumman had an adequate opportunity

                    

14.  "Source  code" refers to an annotated text, written in a
programming  language intelligible to humans, that represents
the  set of  instructions  comprising a  particular  computer
program.  See Computer Assocs. Int'l, Inc. v. Altai, Inc., 22
                                                         
F.3d 32, 33  n.1 (2d  Cir. 1994); Johnson  Controls, Inc.  v.
                                                         
Phoenix Control Sys., Inc., 886 F.2d 1173, 1175 n.2 (9th Cir.
                          
1989).  "Object code" refers  to the text of the same  set of
instructions, translated  into  binary form  (a  sequence  of
zeros and ones) intelligible to the computer itself.  See id.
                                                             

15.  The errors are described infra, note 23.
                                   

                             -18-
                              18

to  explore the  errors  contained in  the initial  copyright

deposits,  to challenge Data  General's explanation  of those

errors,  and to argue these issues before the jury."  Grumman
                                                             

VI,  825 F. Supp. at 352.   Using a special verdict form, the
  

jury found that DG  had properly registered each of  the ADEX

copyrights.

               b.  Actual Damages and Profits
                                             

          Grumman argued that  the jury  should identify  and

ignore  that  portion  of  Grumman's profits  which  was  not

attributable  to Grumman's use of ADEX.  To this end, Grumman

introduced evidence  that some  of its revenues  were derived

from  servicing  DG computers  that  cannot  or need  not  be

serviced  with ADEX, and that  the value of  Grumman's use of

ADEX to service customers with MV computers was distinct from

the value of other products and services Grumman  provided to

those customers.

          In  contrast,  DG  offered  evidence  that  because

equipment  owners prefer  to  purchase all  service from  one

vendor, equipment owners with both MV  computers and other DG

computers  ("mixed-equipment  customers")   would  not   have

purchased service  from Grumman if Grumman  had lacked access

to ADEX.  DG also offered evidence tending to show that, even

if Grumman did not  always use ADEX in servicing  a computer,

Grumman could not have  attracted and retained its MV-related

business had  it not been  for Grumman's  use of ADEX.   DG's

                             -19-
                              19

expert witness opined that DG's damages totaled $28,003,000 -

-  $26,364,000  in  DG's   lost  profits  and  $1,639,000  in

nonduplicative  profits16 earned  by Grumman  as a  result of

its acquisition and use of ADEX.

          Attempting to blunt at  least part of DG's sweeping

"but  for"  theory,  Grumman  asked  the  district  court  to

instruct  the  jury to  discount  that  portion of  Grumman's

profits which was not attributable to the  infringement.  The

court instructed  the jury that DG could recover that portion

of   Grumman's  profits   that   was  "attributable   to  the

infringement,"  but did not  elaborate on the  jury's task in

this regard.   Left to choose between  the parties' theories,

the  jury apparently  accepted  the essence  of DG's  theory,

though   the  total   award  of   compensatory  damages   was

$27,417,000, somewhat less than DG requested.17  

          3.  Post-Trial Issues
                               

          Grumman sought relief from the judgment on a number

of grounds, two of which are most relevant to this appeal.

               a.  Actual Damages and Profits
                                             

                    

16.  "Nonduplicative profits"  are  those profits  earned  by
Grumman  that  would not  have been  available  to DG  in the
absence  of Grumman's  wrongful  conduct.   See  17 U.S.C.   
                                               
504(b) (providing that copyright owner may "recover . . . any
profits  of  the  infringer  that  are  attributable  to  the
infringement and  are not taken into account in computing the
actual damages").

17.  On  the verdict slip, the jury  assessed the same amount
of damages  -- $27,417,000 --  for Grumman's misappropriation
of trade secrets.

                             -20-
                              20

          Claiming that the jury's award  was speculative and

excessive,   Grumman  moved  for  a  new  trial  or,  in  the

alternative, remittitur.  See Fed. R.  Civ. P. 59(a).  As the
                             

district court related:

          Grumman complains that  the jury  awarded
          speculative and excessive damages because
          it  uncritically adopted  the plaintiff's
          damage analysis in its entirety which was
          built   on   theoretically  unsound   and
          factually  inaccurate assumptions.   More
          specifically, defendant contends that the
          plaintiff's  damage  analysis  failed  to
          identify  relevant  revenues,  failed  to
          apply  a  reasonable  profit margin,  and
          failed   to  apportion   service  profits
          between  infringing   and  non-infringing
          activities.

Grumman  VI, 825  F. Supp.  at 349  (footnote omitted).   The
           

district court denied the motion, ruling in essence that DG's

theory of  damages was proper and  that the jury was  free to

weigh the testimony of DG's experts more heavily than that of

Grumman's experts.  Id. at 349-51.
                       

               b.  Attorney's Fees
                                  

          The district court  included in its  judgment order

an award of attorney's fees under the Copyright Act, although

it  appears  that the  court has  not  yet fixed  the amount.

Grumman  argued that  the court  should not  award attorney's

fees because  DG had "elected" only  those remedies available

under Massachusetts  trade secrets law, which  does not allow

                             -21-
                              21

an award of  attorney's fees.18   The  district court  denied

the motion, finding that DG had merely sought to maximize the

judgment  by selecting the most generous body of law for each

element of its  recovery.  Grumman  VI, 825 F. Supp.  at 346.
                                      

The district court reasoned further that because DG would not

receive  a double award of attorney's  fees, the judgment was

in no need of correction.  Id. at 346-47.
                              

          4.  Issues on Appeal
                              

          Grumman  renews its  arguments concerning  the pre-

trial, trial, and post-trial issues described above.  Grumman

claims  that the  district  court erred  in entering  summary

judgment on its affirmative defenses, questions the propriety

of  certain  of  the   district  court's  jury  instructions,

maintains that the jury's  award of damages lacks evidentiary

support,  and insists  that  DG is  not  entitled to  recover

attorney's fees.   After reviewing the  procedural rules that

govern this appeal, we address each of Grumman's arguments in

turn.

                             II.
                                

                    PROCEDURAL PRINCIPLES
                                         

          Because this  appeal turns largely on  questions of

law,  we  outline  the  corresponding   standard  of  review.

Although  the reasoning  of  the court  below  may provide  a

                    

18.  Massachusetts  law   provides  for  a  higher   rate  of
prejudgment  interest  on  compensatory  damages   than  does
federal law.

                             -22-
                              22

useful starting point for analysis, the district court's view

of the  law  is not  binding  on a  court  of appeals.    See
                                                             

Williams  v. Poulos, 11 F.3d 271, 278 (1st Cir. 1993) (citing
                   

Dedham Water Co.  v. Cumberland Farms  Dairy, Inc., 972  F.2d
                                                  

453, 457 (1st Cir. 1992)).  Thus, we exercise our independent

judgment in evaluating the  legal correctness of the district

court's  jury instructions.  Likewise,  we must reach our own

conclusion as to a statute's correct construction.   See FDIC
                                                             

v. Keating, 12 F.3d 314, 316 (1st Cir. 1993).
          

          Similarly, in reviewing a district court's entry of

summary judgment, we determine  anew whether the moving party

has shown "that there is no genuine issue as  to any material

fact  and that  [it] is entitled  to judgment as  a matter of

law."   Fed. R. Civ. P.  56(c).  See also  Bird v. Centennial
                                                             

Ins.  Co.,  11 F.3d  228,  231 (1st  Cir.  1993).   "In  this
         

context, `genuine' means  that the evidence about the fact is

such  that a reasonable jury could resolve the point in favor

of  the nonmoving party and `material' means that the fact is

one  that  might affect  the outcome  of  the suit  under the

governing law."  Pagano v. Frank, 983 F.2d 343, 347 (1st Cir.
                                

1993)  (citations,  internal  quotation marks,  and  brackets

omitted).    Although "we  read  the record  and  indulge all

inferences  in  a  light  most favorable  to  the  non-moving

party,"   Rivera-Ruiz v.  Gonzalez-Rivera, 983 F.2d  332, 334
                                         

(1st  Cir. 1993),  the adverse  party cannot  defeat  a well-

                             -23-
                              23

supported motion  by "rest[ing] upon the  mere allegations or

denials of [its] pleading,"   Fed. R. Civ. P. 56(e).   If the

nonmovant  bears  the  ultimate  burden  of  persuasion  with

respect  to  its  claim  or  defense,  it  may  avert summary

judgment only  if it  identifies issues genuinely  in dispute

and  advances convincing  theories as  to their  materiality.

See  Pagano,  983 F.2d  at  347 (citing  Anderson  v. Liberty
                                                             

Lobby, Inc., 477 U.S. 242, 247-48 (1986)).  Of course, it may
           

be difficult for a trial court to forecast  the reaction of a

reasonable jury  to an  intricate array of  complex theories.

Nonetheless,  Rule 56 applies equally to simple cases as well

as cases  involving complicated legal principles and theories

of recovery.  See,  e.g., Amerinet, Inc. v. Xerox  Corp., 972
                                                        

F.2d 1483, 1490 (8th Cir. 1992) ("In complex antitrust cases,

no different or heightened standard for the grant  of summary

judgment applies."), cert. denied, 113 S. Ct. 1048 (1993).  
                                 

          Finally, we note that we are at liberty to affirm a

district  court's grant  of summary  judgment "on  any ground

supported  in the record even  if the issue  was not pleaded,

tried or  otherwise referred  to in the  proceedings below.'"

de Casenave v. United  States, 991 F.2d 11, 12  n.2 (1st Cir.
                             

1993).

                             III.
                                 

                          DISCUSSION
                                    

A.  DG's Intellectual Property Claims
                                     

                             -24-
                              24

          We first  examine the two arguments  that strike at

the heart of DG's right  to pursue its claims:   DG's alleged

failure   to   comply   with   the   copyright   registration

requirements and  the possible preemption of  the state trade

secrets claim by Section 301 of  the Copyright Act.  We  then

discuss  Grumman's  two  affirmative  defenses  --  the  1976

Settlement Agreement Defense and the "misuse" defense -- each

of  which is intended  to undermine both  the copyright claim

and the  trade secrets claim.   Finally, we  review Grumman's

challenges  to  the  award  of  actual  damages,  infringer's

profits, and attorney's fees.

          1.  Validity of Copyright Registration
                                                

          Registration of  a work  with the  Copyright Office

provides several  benefits to a plaintiff  in an infringement

action.  First,  although copyright  protection attaches  the

day original expression is fixed in a tangible medium, see 17
                                                          

U.S.C.   102(a) (1988 & Supp. IV 1992), and thus an infringer

may  be liable for infringement from that day forward, see 17
                                                          

U.S.C.     408(a)  (1988 &  Supp.  IV  1992) (providing  that

"registration is  not a condition of  copyright protection"),

registration of the copyright is a prerequisite to suit under

the Copyright Act, 17 U.S.C.   411(a) (1988 & Supp. IV 1992).

Second, upon accepting the registrant's application, fee, and

deposit of a representative copy of the work, see 17 U.S.C.  
                                                 

408,   the   Copyright  Office   issues   a  certificate   of

                             -25-
                              25

registration, which is  admissible in an infringement  action

as "prima facie evidence of the validity of the copyright and

of the facts stated  in the certificate," 17 U.S.C.    410(c)

(1988).19    In the  case  of computer  programs  which, like

ADEX, are  either unpublished  or published only  in machine-

readable form, the copyright  owner must deposit "identifying

portions of  the program,"  generally the  first and last  25

pages  of   the  human-readable  source  code   37  C.F.R.   

202.20(c)(2)(vii) (1993).20   By questioning  DG's compliance

with  the registration  requirements, Grumman  is effectively

claiming that (1) DG may not claim infringement of those ADEX

copyrights for which DG tendered a defective deposit; and (2)

even  if DG is free to bring  such claims, it is not entitled

to  a presumption  as to  the validity  of the  copyrights at

issue.

                    

19.  To demonstrate copyright infringement, DG had the burden
of  demonstrating (1) that it  owns a valid  copyright in the
versions  of ADEX alleged to  have been copied,  and (2) that
Grumman copied  constituent, original elements of  ADEX.  See
                                                             
Feist  Publications, Inc. v. Rural Tel. Serv. Co., 111 S. Ct.
                                                 
1282,  1296  (1991);  Concrete  Mach.  Co.  v.  Classic  Lawn
                                                             
Ornaments,  Inc.,  843  F.2d  600,  605 (1st  Cir.  1988);  3
                
Melville  B. Nimmer  &  David Nimmer,  Nimmer on  Copyright  
                                                           
13.01, at 13-5 to 13-6 (1993) (hereinafter "Nimmer").  
                                                  

20.  Where the  program contains  trade secret  material, the
copyright regulations permit some  portions of the deposit to
be blocked out,  and allow a portion of the  deposit to be in
machine-readable "object  code" (lines  of zeroes and  ones).
37 C.F.R.   202.20(c)(2)(vii)(A)(2).  If the deposit includes
no blocked-out portions and consists entirely of source code,
the first and  last ten  pages of the  program will  suffice.
Id.
   

                             -26-
                              26

          Essentially,   Grumman's   argument  is   that  the

district  court erred  in  instructing the  jury that  minor,

inadvertent errors in material deposited with a  registration

application   do   not    affect   the   validity    of   the

registration.21     DG  admits  that  there were  inadvertent

errors  in  the  material  deposited  with  the  registration

application for  ADEX Revisions  0.0 to 2.0,22  but maintains

that  the errors  are  inconsequential.23   Grumman does  not

                    

21.  The district court instructed the jury as follows:

               Because the function or registration
          [with  respect  to computer  programs] is
          symbolic,   clerical    errors   in   the
          materials deposited  with the application
          for  registration  do   not  affect   the
          validity  of  the   registration.     For
          instance,  discrepancies  in  the  dates,
          filing the wrong pages, or partial pages,
          and  similar errors,  if accepted  by the
          Copyright  Office,  do  not  impeach  the
          validity and effect of  the registration.
          If the errors were  intentional, however,
          for purposes of  deceiving the  Copyright
          Office  and  perpetrating  a  fraud,  the
          errors invalidate the registration.

22.  Grumman does not question  the validity of the copyright
registration  for  the  last  five versions  of  ADEX,  which
                            
Grumman  also  admitted  it  copied  and  used.    Therefore,
Grumman's  argument, if  persuasive, would  not  constitute a
complete defense  to the infringement action;  the real issue
is the extent of infringement properly subject to suit.

23.  With  respect to ADEX  Revisions 0.0,  1.0, and  2.0, DG
attempted to deposit the  first and last ten pages  of source
code (with  no trade secrets blocked-out)  in accordance with
37 C.F.R.   202.20(c)(2)(vii)(A)(2).  In all three instances,
DG deposited the correct  last ten pages but did  not deposit
the correct first  ten pages.   Nonetheless, in  the case  of
ADEX Revisions  1.0 and  2.0, there was  only one  difference
between  the deposited  pages and  the pages  DG  intended to

                             -27-
                              27

quibble with DG's denial of intent, but argues in effect that

any  error,  however  minor,  precludes a  finding  that  the
   

plaintiff  complied  with  Section  408(b).    Alternatively,

Grumman argues that an unintentional error in the deposit may

still  invalidate a  copyright registration  if the  error is

material.   Grumman contends further that  the district court

erred  in refusing  Grumman's request  for production  of the

entire  source code for each  of the first  three versions of

ADEX, a decision which allegedly prejudiced Grumman's ability

to  demonstrate  that the  defects  in the  deposit  were not

minor.  We address these contentions seriatim.
                                             

               a.  Immaterial Errors in the Copyright Deposit
                                                             

          It is well established that immaterial, inadvertent

errors in  an application  for copyright registration  do not

jeopardize the validity of  the registration.  See Masquerade
                                                             

Novelty,  Inc. v. Unique Indus., Inc., 912 F.2d 663, 667-68 &
                                     

n.5  (3d Cir.  1990); Whimsicality,  Inc. v.  Rubie's Costume
                                                             

Co., 891 F.2d  452, 456 (2d Cir. 1989)  (citing Eckes v. Card
                                                             

                    

deposit:  the Primary  Label Block  on the  copyright deposit
designates "1982"  rather than "1983" as  the copyright date.
The same error occurred in the deposit for ADEX Revision 0.0,
although  there  were three  additional  errors:   two  other
discrepancies  concerning the  Primary Label  Block, and  one
line  of code missing from the deposited pages.  The district
court observed that "the  Primary Label Block, which contains
descriptive information about the  tape, does not instruct or
direct  the computer."  Grumman VI, 825  F. Supp. at 356.  In
                                  
addition,  Mr.  Gove, DG's  expert,  testified  that the  few
errors  in the deposited pages  would have no  bearing on the
operation of the programs.

                             -28-
                              28

Prices Update, 736 F.2d  859, 861-62 (2d Cir.  1984)); Harris
                                                             

v. Emus Records Corp.,  734 F.2d 1329, 1335 (9th  Cir. 1984);
                     

Original Appalachian  Artworks, Inc.  v. Toy Loft,  Inc., 684
                                                        

F.2d 821, 828  (11th Cir. 1982);  2 Nimmer    7.20, at  7-201
                                          

("[A]  misstatement  or  clerical error  in  the registration

application if unaccompanied by fraud will not invalidate the

copyright nor render  the registration certificate  incapable

of  supporting an  infringement  action.").   In general,  an

error  is immaterial if its  discovery is not  likely to have

led  the  Copyright Office  to refuse  the application.   See
                                                             

Eckes, 736 F.2d at 861-62.24
     

          Grumman   observes   that   the   cases   approving

substantial compliance with registration requirements concern

errors in the application, not the deposit, and suggests that
                                          

we adopt a rule demanding strict compliance with  the deposit

requirement.   Although a  different rule for  deposit errors

might be warranted if the language and underlying purposes of

the deposit  requirement were  of  a significantly  different

                    

24.  Some courts  have suggested  that a defendant  must show
that  it  was  prejudiced  by a  fraudulent  misstatement  or
                         
omission in  a registration  application, see,  e.g., Harris,
                                                            
734 F.2d at  1335 ("Absent intent  to defraud and  prejudice,
inaccuracies in copyright  registrations do  not bar  actions
for infringement."), whereas others merely require proof that
an intentional error, if  discovered by the Copyright Office,
would have  been material to the  registration decision, see,
                                                            
e.g.,  Eckes, 736 F.2d at 861-62.  Any substantive difference
            
in these standards has no bearing on our decision today.

                             -29-
                              29

character than that of the application requirement, we do not

find that to be the case.

          In  the first  place, the  registration application

described in Section 409, as well as the deposit described in

Section 408(b), are both  equally mandatory components of the

registration process  outlined in Section 408(a).   Likewise,

just as  Section 409  sets forth  what an application  "shall
                                                             

include,"  (emphasis  added), Section  408(b)  uses  the same

phrase  to prescribe the contents  of the deposit.   There is

nothing in this language  that would prevent our interpreting

both   the   application   requirements   and   the   deposit

requirements in a consistent and practical manner.

          Nor  do  the  apparent   purposes  of  the  deposit

requirement counsel a different  result.  Although related to

the deposit requirement in Section 407, which is  designed to

further the  acquisitions policy of the  Library of Congress,

the deposit  required by  Section 408(b) serves  the separate

purpose  of  providing the  Library's  Copyright Office  with

sufficient  material  to  identify  the  work  in  which  the

registrant  claims a copyright.   See H.R.  Rep. No. 94-1476,
                                     

94th Cong., 2d Sess. 5 (1976), reprinted in 1976 U.S.C.C.A.N.
                                           

5659,  5766-70;  see  also  37   C.F.R.     202.20(c)(2)(vii)
                          

(requiring deposit of "identifying portions" of programs that

are unpublished or published only in machine-readable  form).

In other words, a  key purpose of the Section  408(b) deposit

                             -30-
                              30

requirement  is to  prevent  confusion about  which work  the

author is attempting to register.

          A  second  apparent aim  of  Section  408(b) is  to

furnish the  Copyright Office  with an opportunity  to assess

the copyrightability  of the  applicant's work.   Pursuant to

the Copyright Act, the Register of Copyrights must register a

copyright claim and issue a registration certificate "[w]hen,

after  examination, the Register . . .  determines that . . .

the  material  deposited  constitutes  copyrightable  subject

matter."   17 U.S.C.    410(a) (1988).25   Some provisions of

the   copyright  regulations   seek  to  preserve   the  same

opportunity for examination  in relation to the  deposit of a

relatively small  subset of a computer program.   In adopting

regulations encouraging  source  code deposits  for  computer

programs,   the  Copyright   Office   explained  that   "[i]n

registering   all  copyright  claims,  the  Copyright  Office

                    

25.  Because Section  410(a) does  not specify the  nature of
the  "examination,"  and  because   there  is  evidence  that
Congress intended the government to  play a role in copyright
registration  that is  much more  limited than  its extensive
responsibilities  in  overseeing  patent   registration,  the
Copyright  Office  may  have  the  discretion  to  limit  its
examination  to the  facial validity  of the  application and
deposit.  See Midway Mfg. Co. v. Bandai-America, Inc., 546 F.
                                                     
Supp. 125,  143-44 (D.N.J. 1982) (citing,  inter alia, Donald
                                                             
v.  Uarco Business  Forms, 478  F.2d 764,  765 n.1  (8th Cir.
                         
1973)).  Nevertheless,  any such  discretion  resides  in the
Copyright  Office, not  the  applicant,  for  Section  410(a)
suggests  that an  applicant must  always give  the Copyright
Office   an   opportunity   to   undertake   an   appropriate
                         
examination.

                             -31-
                              31

examines   the   deposit  to   determine  the   existence  of

copyrightable authorship."   54 Fed. Reg. 13,173 (1989).   In

order  to allow the Office to continue this practice, the new

regulations provide, for  example, that when  the applicant's

deposit  contains   portions  of   the  source  code   of  an

unpublished computer  program with blocked-out  trade secrets

the  deposit must  still "reveal[]  an appreciable  amount of

original    computer    code."        See   37    C.F.R.     
                                         

202.20(c)(2)(vii)(A)(2) (emphasis added).  On the other hand,

where  there are  no  blocked-out portions  in the  deposited

portions  of  a  computer  program, the  regulations  do  not

specifically require that the deposit contain "an appreciable

amount  of  original computer  code."   In  other  words, the

Copyright Office seems to have assumed that in such cases the

deposited pages are likely  to contain sufficient elements of

original expression to determine the copyrightability  of the

work at issue.  At any rate,  it appears that Congress viewed

the deposit requirement as  a means of collecting information

that the Copyright Office  may use in resolving  the question

of copyrightability for the purposes of Section 410.26

                    

26.  Another  objective of  Section 408(b)  might be  to give
would-be  infringers  notice of  the  extent  of their  civil
liability.    Yet, this  can  hardly have  been  an important
legislative  goal  because  a  copyright  owner  is  free  to
register any time before  filing suit, even after the  act of
                                                 
infringement.  See 17  U.S.C.   408(a); Twentieth Century-Fox
                                                             
Film  Corp. v.  Dunnahoo,  637 F.2d  1338, 1342-43  (9th Cir.
                        
1981); see also Olan  Mills, Inc. v. Linn Photo  Co., 23 F.3d
                                                    
1345,  1349   (8th  Cir.   1994);  Konor  Enters.   v.  Eagle
                                                             

                             -32-
                              32

          Neither    of    these   objectives    differs   so

significantly from those of the application requirement as to

justify  a  departure  from  the  rule  governing application

errors.    Quite  naturally,  one  important  function  of  a

registration application is to identify the work in which the

applicant claims a  copyright.  See 17  U.S.C.   409 (1988  &
                                   

Supp. IV 1992) (requiring application to include, inter alia,
                                                            

title  of work,  dates of  completion and  publication, along

with "any  other information  . .  . bearing upon  the .  . .

identification of the work").  Furthermore, like the deposit,

the    application   also    provides   some    evidence   of

copyrightability,  because it  must identify  any preexisting

work from which the author borrowed in creating a compilation

or derivative  work.  See  17 U.S.C.    409(9).   Indeed, the
                         

Copyright  Office may often be in a better position to assess

the  originality of the work  being registered by reviewing a

                    

Publications,  Inc., 878 F.2d 138,  140 (4th Cir.  1989).  In
                   
addition,  because   Congress  had  included   a  recordation
requirement elsewhere  in the copyright laws  until 1988, see
                                                             
17 U.S.C.A.   205(d)  (West 1977) (providing that recordation
of  transfer   of  copyright  ownership  is  prerequisite  to
infringement  suit by transferee), but  did not do  so in the
context of Section 408, we may infer that affording notice to
potential infringers was not Congress's primary motivation in
drafting   Section  408(b).      See  City   of  Chicago   v.
                                                        
Environmental Defense Fund, 114 S. Ct. 1588, 1593 (1994) ("It
                          
is generally presumed  that Congress  acts intentionally  and
purposely when it includes particular language in one section
of a statute but  omits it in another.")  (citation, internal
quotation marks, and brackets  omitted); United States ex rel
                                                             
S.  Prawer & Co.  v. Fleet Bank,  24 F.3d 320,  329 (1st Cir.
                               
1994) (similar).

                             -33-
                              33

list  of  preexisting  works  than by  conducting  a  cursory

inspection  of   the  deposited   material.    And   yet,  an

inadvertent  failure  to  identify  preexisting  works  on an

application  is  treated   no  differently  from   any  other

application  error.   See, e.g.,  Toy Loft,  684 F.2d  at 828
                                          

(analyzing in  similar fashion  failure to  mention co-author

and failure to mention preexisting works).

          We conclude  that  there is  no support  in law  or

reason for  a  rule that  penalizes  immaterial,  inadvertent

errors in a  copyright deposit.27   Accordingly,  we find  no

flaw in the district court's instruction that such errors "do

not impeach the validity and effect of the registration."

               b.  Material Errors in the Copyright Deposit
                                                           

                    

27.  Contrary to Grumman's vigorous assertions,  this court's
opinion in Unistrut  Corp. v.  Power, 280 F.2d  18 (1st  Cir.
                                    
1960),  does  not compel  a different  rule.   In  that case,
plaintiff  claimed infringement  of the  1942 edition  of its
catalog but apparently sought  to prove unauthorized  copying
at trial  by demonstrating the similarity  of the defendant's
work  to  the 1943  edition  of  plaintiff's catalog,  "which
admittedly contained  some, unspecified, additions."   Id. at
                                                          
23.   Because "there  was no proof that  copies of this later
edition were  deposited with the Copyright  Office, and there
was no proof that the infringed material was contained in the
1942  edition," we held that there  was insufficient proof of
infringement  of  the earlier  edition.    Id.   Unistrut  is
                                                         
distinguishable in at least two respects.  First, our opinion
in Unistrut  does not  suggest that the  plaintiff mistakenly
           
deposited  the 1943  edition  when attempting  to register  a
copyright  claim concerning the 1942 edition; hence, Unistrut
                                                             
cannot  serve  as authority  on  the  legal ramifications  of
registration errors.  Second, in  this case there is evidence
that sections of source  code from ADEX Revisions 0.0  to 2.0
were  among the  pages deposited  with the  Copyright Office,
    
even  if other portions  of the deposited  material came from
other computer programs.

                             -34-
                              34

          The law is not quite as settled as to the effect of

an application  error  that is  inadvertent  but  nonetheless

material.    No  court  has  suggested  that  a  registration

premised  in part  on an  unintentional material  error would

fail  to satisfy  the jurisdictional  requirement  of Section

411(a).  At the  same time, at least one court  has suggested

that in  such  instances  the proper  approach  might  be  to

prevent  the  plaintiff from  exploiting  the  presumption of

validity  that ordinarily attaches  to a registered copyright

under Section 410(c).   Masquerade Novelty,  912 F.2d at  668
                                          

n.5  (dictum).  We assume for argument's sake that a material

error  in a  copyright  deposit, even  if unintentional,  may

destroy the presumption of validity.

               c.   Refusal  to Compel  Production of  Source
                                                             

Code
    

          Grumman  next argues that  it was unfairly deprived

of  an opportunity to prove  that the errors  in the deposits

were   material.    Specifically,  Grumman  claims  that  the

district court abused its  discretion when, during the trial,

it  refused to compel DG  to produce roughly  40,000 pages of

source code  (on approximately 33,000 floppy  disks) for each

of  the first  three  versions of  ADEX (0.0  to  2.0).   See
                                                             

Geremia v. First Nat'l Bank, 653 F.2d 1, 5-6  (1st Cir. 1981)
                           

(reviewing denial of mid-trial  discovery motion for abuse of

discretion). 

                             -35-
                              35

          Grumman renewed its unsuccessful pre-trial requests

for the source code after Edward Gove, a DG witness, admitted

on  cross-examination  that  there  were  some  discrepancies

between the  source code deposited with  the Copyright Office

and  the actual  source code  for ADEX  0.0 to 2.0,  and then

explained in rebuttal testimony  that those errors were minor

and  of no  consequence to  the operation  of  the diagnostic

program  as a whole.  In response  to the renewed request, DG

provided Grumman  with those portions of the source codes for

ADEX Revisions 0.0 to  2.0 necessary to conduct  a character-

by-character  comparison of  the intended deposits  of source

code   with  those   portions   of   source   code   actually

deposited.28    Nonetheless,  Grumman insisted  that  it  was

entitled to the entire source code for all three versions.

          Grumman apparently sought the three  sets of source

code  because it believed that  analysis of the entire source

code would  permit a more effective  cross-examination of the

DG witness  about the  magnitude of the  discrepancies during

DG's rebuttal.  It seems that Grumman had one main  goal:  it

believed  it  might  be  able  to  show  that,  although  the

discrepancies  were  few in  number  and  seemingly minor  in

character,  ADEX would  not function  properly if  the source

                    

28.  In its brief, DG states that "Data General collected and
provided to Grumman copies  of the entire source code  of all
of  the sub-programs that were, or should have been, filed in
the  Copyright Office for  each of the  relevant revisions of
MV/ADEX."  Grumman does not challenge this assertion.

                             -36-
                              36

code deposited  with the  Copyright Office had  been inserted

into the versions of ADEX DG intended to register.

          The marginal  benefit to Grumman  of obtaining  the

balance  of the source code was at best highly uncertain, and

all  indications  were that  such  a  test would  produce  no

compelling results.   Even if Grumman  could demonstrate that

inserting  the errors would impair  the operation of ADEX, it

is  extremely  unlikely   that  this   would  establish   the

materiality  of the errors.  Grumman does not allege that any

of the errors,  if discovered, would  have led the  Copyright

Office  to refuse registration of DG's copyright claims.  Nor

does  Grumman contend  that the  Copyright Office  would have

been  unable to use the  correct portions of  the deposits to

identify  the  works  DG  intended  to  register  or  make  a

preliminary determination concerning the  copyrightability of

those  works.29    In  contrast, DG  produced  evidence  that

                    

29.  If a  showing  of prejudice  is  necessary to  enable  a
defendant  to use  a registration  error as  a defense  to an
infringement action, see supra note 24, Grumman has failed in
                              
this  respect as well because  Grumman has not  shown that it
was misled as to  the copyrightability of ADEX  Revisions 0.0
to 2.0.  It appears that Grumman has always acted in a manner
consistent  with  the  belief  that  each  revision  of  ADEX
contains  copyrightable  elements.    In  these  proceedings,
moreover, Grumman  has never seriously argued  that the first
three  versions  of  ADEX  are entirely  devoid  of  original
computer  code, and  has consistently  admitted that  it made
identical copies  of the entire  contents of each  version of
ADEX at issue in this action.   Accordingly, we are unable to
see why Grumman  was disadvantaged by  bearing the burden  of
proving that there are no copyrightable elements in the first
three versions of  ADEX, a  task even Grumman  seems to  have
forsworn.

                             -37-
                              37

production of  the requested  material would be  an extremely

cumbersome process,  a point  Grumman does not  contest.   We

find no abuse of discretion  in the district court's decision

to deny Grumman's mid-trial discovery request.

          2.  Preemption of Trade Secrets Claim
                                               

          Seeking to avoid  the additional damages associated

with  the  trade secrets  remedies  selected  by DG,  Grumman

argues  that the state claim  is preempted by  Section 301 of

the Copyright Act, 17 U.S.C.   301(a).

          Section 301(a) precludes  enforcement of any  state

cause of action which is equivalent in substance to a federal

copyright infringement claim.30   See generally Gates  Rubber
                                                             

Co. v. Bando  Chem. Indus.,  Ltd., 9 F.3d  823, 846-47  (10th
                                 

Cir.  1993); Trandes Corp. v.  Guy F. Atkinson  Co., 996 F.2d
                                                   

655,  658-60 (4th Cir.), cert. denied, 114 S. Ct. 443 (1993);
                                     

1  Nimmer    1.01[B][h],  at 1-35  to  1-36.1.   Courts  have
         

developed  a  functional  test  to  assess  the  question  of

equivalence.  "[I]f a state cause of action requires an extra

element,  beyond  mere  copying,  preparation  of  derivative

works, performance,  distribution or display, then  the state

cause  of action  is  qualitatively different  from, and  not

                    

30.  In  pertinent  part, Section  301(a) provides  that "all
legal or equitable rights  that are equivalent to any  of the
exclusive  rights within the general scope of copyright . . .
are  governed exclusively  by  this title.    [N]o person  is
entitled  to any such right  or equivalent right  in any such
work under the common law or statutes of any State."

                             -38-
                              38

subsumed within, a  copyright infringement claim and  federal

law will not preempt the state action."  Gates Rubber, 9 F.3d
                                                     

at 847 (citing  Computer Assocs. Int'l, Inc.  v. Altai, Inc.,
                                                            

982 F.2d 693, 716 (2nd Cir. 1992)).

          Not  every "extra  element" of  a state  claim will

establish a qualitative variance between the rights protected

by federal copyright  law and those  protected by state  law.

For  example, a  state  claim of  tortious interference  with

contractual  relations may require  elements of awareness and

intentional interference not necessary for proof of copyright

infringement.   And  yet, such  an  action is  equivalent  in

substance  to   a  copyright  infringement  claim  where  the

additional  elements  merely  concern  the  extent  to  which
                                                             

authors and their licensees can prohibit unauthorized copying

by third parties.   Harper & Row, Publishers, Inc.  v. Nation
                                                             

Enters., 723 F.2d  195, 201  (2d Cir. 1983),  rev'd on  other
                                                             

grounds,  471  U.S.  539  (1985).    Similarly, a  state  law
       

misappropriation  claim  will  not  escape  preemption  under

Section  301(a) simply  because a  plaintiff must  prove that

copying was  not only  unauthorized but  also "commercial[ly]

immoral[,]"  a  mere "label  attached  to  [the same]  odious

business conduct."   Mayer v. Josiah  Wedgwood & Sons,  Ltd.,
                                                            

601  F. Supp.  1523, 1535  (S.D.N.Y. 1985).   Nonetheless,  a

trade secrets claim that requires proof of a breach of a duty

of  confidentiality  stands on  a  different  footing.   Such

                             -39-
                              39

claims are not preempted  because participation in the breach

of a duty of confidentiality -- an element that forms no part

of  a  copyright  infringement  claim  --  represents  unfair

competitive   conduct   qualitatively  different   from  mere

unauthorized copying.   See Gates  Rubber, 9 F.3d  at 847-48;
                                         

Trandes Corp., 996 F.2d at 660; Computer Associates, 982 F.2d
                                                   

at 717; S.O.S.,  Inc. v.  Payday, Inc., 886  F.2d 1081,  1090
                                      

n.13 (9th Cir. 1989).31

          DG's  trade secrets  claim fits  comfortably within

this  category.   To  demonstrate misappropriation  of  trade

secrets  under Massachusetts  law,  DG must  prove that  "(1)

MV/ADEX is a  trade secret; (2) Data  General took reasonable

steps  to preserve  the secrecy of  MV/ADEX; and  (3) Grumman

used   improper   means,   in  breach   of   a   confidential

relationship, to acquire and use the trade secret."   Grumman
                                                             

VI, 825  F. Supp.  at 357 (citing,  inter alia, J.T.  Healy &
                                                             

Son, Inc. v.  James A. Murphy  & Son,  Inc., 260 N.E.2d  723,
                                           

729-31 (Mass. 1970)).  The district court instructed the jury

                    

31.  Grumman  insists  that   acquisition  of   copyrightable
software  in  violation  of  confidentiality   agreements  is
equivalent to  unauthorized copying  where, as appears  to be
the  case here,  the defendant  does not  actually learn  the
                                                        
trade  secrets embodied  in  the software.   The  qualitative
difference between unauthorized copying  and such acts as the
discovery  of  wrongfully  acquired  trade  secrets  and  the
illegal use of that  knowledge may be more striking  than the
difference    between    unauthorized   copying    and   mere
participation in  the breach of a  confidentiality agreement.
But  we cannot agree that  the latter relationship  is one of
equivalence.

                             -40-
                              40

that "wrongful acquisition" is  an element of a Massachusetts

trade  secrets  claim, and  that  "[a]cquisition  of a  trade

secret is wrongful .  . . if it is by theft of property known

to belong  to another,  or  by knowing  participation in  the
                                                             

breach of an express or implied confidentiality agreement by,
                                                         

for instance, a former employee or customer of Data General."

(Emphasis  added.)   Grumman does  not assign  error  to this

portion  of the  charge, which  thus becomes  the law  of the

case.  See United States v.  Connell, 6 F.3d 27, 30 (1st Cir.
                                    

1993)  (explaining  that  unchallenged  legal  decisions  are

ordinarily  unassailable  at  later  stages  in  litigation).

Furthermore, DG's  theory was precisely that Grumman acquired

ADEX  by  participating  in  the  breach  of  confidentiality

agreements binding on former  employees and service customers

of  DG.32   Because the  Copyright Act  does not  prevent the

states from imposing liability for such conduct, the district

court was  correct  to spare  DG's trade  secrets claim  from

preemption under Section 301(a).

          3.  1976 Settlement Agreement Defense
                                               

          Grumman   denies   its   liability  for   copyright

infringement and  misappropriation of trade  secrets, arguing

that  the  Settlement Agreement  contains a  license allowing

Grumman to copy and use ADEX in the maintenance and repair of

                    

32.  The relevant contract language appears infra, note 37.  
                                                 

                             -41-
                              41

DG computers.   The district  court granted  DG's motion  for

partial  summary  judgment on  this  issue,  and Grumman  now

appeals  that decision  on two  alternative grounds:  (1) the

Settlement Agreement unambiguously  grants Grumman a  license

to  use ADEX;  or (2)  the Settlement  Agreement is  at least

ambiguous, and conflicting extrinsic evidence about the scope

of  the   license  presents  a  factual   dispute  worthy  of

resolution by a jury.   

               a.  Maryland Contract Law
                                        

          The  parties agree  that the  Settlement Agreement,

executed in  Maryland, is governed by  Maryland contract law.

Maryland  courts  do  not  follow the  subjective  theory  of

contracts, which aims  to discover the  actual intent of  the

parties even  at the expense  of unambiguous language  to the

contrary.  See Hershon  v. Gibraltar Bldg. & Loan  Ass'n, 864
                                                        

F.2d  848,  851 (D.C.  Cir.  1989)  (applying Maryland  law).

Instead, Maryland subscribes to  the objective approach.  See
                                                             

id.   Under that  approach, a  court  may consider  extrinsic
   

evidence  only in  determining whether  contract  language is
                                      

ambiguous.  See id. at  852.  However, as long as  the result
                   

is  objectively reasonable,  a  court may  not use  extrinsic

evidence  "to interpret facially explicit contractual terms."

Id. at 851-52.   See also General Motors Acceptance  Corp. v.
                                                          

Daniels, 492 A.2d 1306, 1310 (Md. 1985).
       

                             -42-
                              42

          Where  contract  terms are  ambiguous, a  court may

look  to  extrinsic  evidence   in  order  to  ascertain  the

intention of  the parties  and, if successful,  interpret the

contract  as a matter of  law.  See  Collier v. MD-Individual
                                                             

Practice  Ass'n, 607  A.2d 537,  541 (Md.  1992); Truck  Ins.
                                                             

Exch. v. Marks Rentals, Inc., 418 A.2d 1187, 1190 (Md. 1980).
                            

If,  after such  examination,  the meaning  of the  ambiguous

terms remains in genuine dispute, and the dispute is material

to  the outcome  of  the  claim  or  defense  at  issue,  the

ambiguity  must be resolved by  the trier of  fact.  See id.;
                                                            

Monumental  Life Ins. Co.  v. United States  Fidelity & Guar.
                                                             

Co., 617 A.2d  1163, 1174  (Md. Ct. Spec.  App.) ("Only  when
   

there  is a bona fide ambiguity in the contract's language or
                     

legitimate   doubt   as   to  its   application   under   the

circumstances  is the contract submitted to  the trier of the

fact for  interpretation."), cert. denied, 624  A.2d 491 (Md.
                                         

1993).33

                    

33.  Grumman asserts that  any ambiguity must  be interpreted
against  DG  as  the  drafter of  the  Settlement  Agreement.
However, because  the Settlement Agreement is  the product of
negotiations by sophisticated parties represented by counsel,
this "`secondary rule  of construction .  . . perhaps  should
have  but  slight force.'"    Acme  Markets, Inc.  v.  Dawson
                                                             
Enters., 251  A.2d  839, 847  (Md.  1969) (quoting  Rossi  v.
                                                         
Douglas,  100 A.2d  3, 6  (Md. 1953)).    In any  event, this
       
interpretive presumption has  no application where, as  here,
the record contains extrinsic evidence sufficient to discover
the  intention of  the parties  to the  Settlement Agreement.
See Pacific Indem. Co. v. Interstate Fire & Casualty Co., 488
                                                        
A.2d 486,  497 (Md. 1985); St. Paul Fire & Marine Ins. Co. v.
                                                          
Pryseski, 438 A.2d 282, 288 (Md. 1981).
        

                             -43-
                              43

               b.  Areas of Agreement
                                     

          In order to focus  our analysis of DG's entitlement

to  summary  judgment,  we   first  determine  the  reach  of

Grumman's  contentions  in light  of  the  existing areas  of

agreement.

          In  the first  place,  the parties  agree that  the

existence  and scope of a  license turn on the interpretation

of  the  "maintenance or  repair"  exception  to the  general

prohibition  of paragraph four  of the  Settlement Agreement,

which provides that Grumman's predecessor "will not, directly

or indirectly, copy  or utilize `Proprietary  Information' of

DG  for the design or  manufacture of computers  or any other

purpose."34    In addition,  DG  admits  that the  Settlement

Agreement  gives  Grumman  a  right   to  use  some  of  DG's

                    

34.  In its entirety, paragraph four reads as follows:

               4.    Defendants [CSSC,  Lloyd Root,
          and Robert Montgomery] agree, jointly and
          severally, that they  will not,  directly
          or    indirectly,    copy   or    utilize
          "Proprietary Information" of DGC  for the
          design or manufacture of computers or any
          other purpose except  [i] maintenance  or
          repair    of    DGC    equipment,    [ii]
          installation and integration of equipment
          manufactured or sold  by companies  other
          than   DGC,   or  [iii]   other  purposes
          permitted    by   any    proprietary   or
          confidentiality  legends  accompanying or
          made  part of  any data  or documentation
          comprising    Proprietary    Information.
          "Proprietary  Information"  of DGC  shall
          mean  data  and  documentation  which  is
          marked confidential or proprietary to DGC
          by appropriate legend.

                             -44-
                              44

proprietary  information  for  some  purposes.   Although  DG

denies that  the Settlement  Agreement allows Grumman  to use

ADEX  itself,  DG  nonetheless  admitted in  its  answers  to

Grumman's  request  for  admissions  "that, as  part  of  the

settlement of  the CSSC litigation, Data  General agreed that

CSSC could use Data  General proprietary information that was

defined in the  Agreement and  the nature of  which was  then

understood  by and agreed to  by the parties,  to maintain or

repair  Data  General  computers."    While   the  Settlement

Agreement does not bear  many of the traits of  a traditional

licensing  agreement, it  does grant  some permission  to use

DG's   intellectual    property,   at   least    in   certain

circumstances,   and   therefore   creates   some   type   of

"license."35   Consequently, Grumman's  defense turns  on the

scope of the license.36
     

                    

35.  Because neither party has  offered a legal definition of
a  license, we  will regard  the term  as carrying  its usual
definition:    permission to  use  the  property of  another.
Black's  Law Dictionary 829-30 (5th ed. 1979).  A license can
                       
be general,  with few or  no restrictions, or  quite limited.
The  use of  the  word "license"  in  a contract  is  clearly
evidence of an intent  to permit use, but the  absence of the
word  is not dispositive, as long  as other contract language
grants some permission  to use.  Cf. 3 Nimmer    10.03[A], at
                                             
10-38  (explaining  that  "[a] nonexclusive  license  may  be
granted  orally,  or  may  even  be  implied  from  conduct")
(footnotes omitted).

36.  DG argues that the Settlement Agreement was not intended
to  apply  to proprietary  information  created  by DG  after
settlement  of the  1975  lawsuit.   We  cannot agree.    The
language  "`Proprietary Information'  of  DGC" strikes  us as
unambiguous,  and unqualifiedly  embraces all  DG proprietary
                                             

                             -45-
                              45

          Also worthy of note are undisputed facts concerning

the nature of Grumman's acquisition and use of ADEX.  Grumman

did not  simply gain  access to  copies of  ADEX left  at the
                            

sites of  former DG service customers solely  for the purpose

of using  on-site maintenance  tools to service  computers at

that  site.   Rather,  Grumman acquired  copies of  ADEX from
                                       

former  service  customers in  an  effort to  expand  its own

library of MV diagnostic software,  which Grumman technicians

freely copied  and used  in servicing  the  computers of  any

Grumman customer with  MV equipment.   Moreover, there is  no

evidence that Grumman acquired  ADEX from equipment owners at

a time when those equipment owners were also customers of DG.

Nor  is there  evidence that  Grumman acquired  ADEX directly

from  DG,  or  from current  or  former  CMO  customers.   In

addition, the  record reveals that DG  service customers were

contractually bound  both to  prevent ADEX from  falling into

the hands of third parties such as  TPMs and to return copies

of ADEX to DG  after the termination of the  relevant service

agreement.37    Thus,  Grumman   acquired  ADEX  from   those

                    

information, whether in  existence in 1976 or not.   However,
even  if the  phrase were  ambiguous, an  examination  of the
extrinsic  evidence  reveals  that  DG  would  still  not  be
entitled to summary judgment on  this basis because there  is
extrinsic evidence that would allow a reasonable jury to find
that  the  Settlement  Agreement  was intended  to  apply  to
information in the future.

37.  For  example, in  one  version of  DG's On-Call  Service
Agreement, service customers agreed  "NOT TO DISCLOSE OR MAKE
AVAILABLE TO ANY THIRD PARTY THE PROPRIETARY ITEMS [installed

                             -46-
                              46

customers who no longer had lawful  possession of the program

and had no right to transfer it.38 

          The  question  we  must  resolve  is  whether   the

"maintenance  or repair" exception authorized Grumman both to

gain access to and  acquire copies of ADEX in  the possession

of former  DG service customers  despite the fact  that these

customers  had agreed  not only  to prevent  such third-party

access but  also to  return copies  of ADEX  to DG after  the

termination of their service contract.

                    

at customer  locations by DG;]  AND . .  . TO RETURN  ALL THE
PROPRIETARY    ITEMS    TO    [DG]    UPON    EXPIRATION   OR
CANCELLATION/TERMINATION OF THIS AGREEMENT."

38.  Grumman  also acquired  copies  of ADEX  from former  DG
employees who brought  copies of  the program  with them,  in
violation of  their employment agreements.   Grumman does not
maintain  that the Settlement Agreement gives it the right to
duplicate and use copies of ADEX acquired in this manner.

                             -47-
                              47

               d.  Scope of the License  
                                       

          The plain language of the Settlement Agreement does

not answer our question.  Despite the fact that the exception

anticipates  that   Grumman  will   "copy   or  utilize"   DG

proprietary information  for the  "maintenance and repair  of

DGC  equipment," the  Settlement Agreement  does not  specify

whether it merely refers to Grumman's right to gain access to

maintenance tools it finds at a customer  site (including the

routine  copying  and  use inherent  in  the  operation  of a

computer program),  or whether the  exception somehow  allows

Grumman to acquire such tools for the service of DG computers

at other sites.  Similarly, the Settlement Agreement contains

no prescription for resolving potential conflicts between the

"maintenance  or repair"  exception  and  provisions in  DG's

Service Agreement  prohibiting third-party access  during the

term  of  the  Agreement  and  retention  of  DG  proprietary

information  thereafter.     Accordingly,  we   turn  to  the

extrinsic evidence in the record in an attempt to resolve the

ambiguity.

          Even  when  viewed in  a  light  most favorable  to

Grumman, the record evidence makes  clear that the parties to

the   Settlement  Agreement  intended  the  "maintenance  and

repair" exception to function as what we shall call a "third-

party access agreement," allowing CSSC, Grumman's predecessor

in interest,  to gain access to  proprietary information that

                             -48-
                              48

DG sold, licensed,  or otherwise  entrusted to  owners of  DG

equipment.   For example, when  called to testify  in the STI
                                                             

litigation,  Edward Canfield,  CSSC's  attorney at  the time,

used these words  to describe his  contemporary understanding

of the  "maintenance and repair" exception:  "If the customer

had it,  [CSSC] had a right  to use it."39   In addition, the

language of DG licensing  agreements in the 1970s as  well as

the pleadings in the 1975 litigation strongly corroborate the

view  that the  settlement  negotiations primarily  concerned

CSSC's right to use  proprietary information in the  hands of

DG  equipment  owners.     As  late  as  1976,   DG  licensed

proprietary maintenance information to equipment owners under

an agreement  which specifically  allowed licensees  to grant

access  to   third  parties  "on  LICENSEE's   premises  with

LICENSEE's  permission for  purposes specifically  related to

LICENSEE's use of  the Licensed Program."   Moreover, in  its

1975  counterclaim,  CSSC  intimated  that DG  had  begun  to

undermine the ability of  TPMs to gain access to  maintenance

information in  the hands of equipment  owners, alleging that

DG  had attempted  "to prevent  owners of  DGC Mini-computers

from having  their equipment  serviced and maintained  by any

competitor of DGC  . . . by restricting the  use those owners

make of their owner maintenance information."

                    

39.  The district  court accepted a transcript  of Canfield's
testimony  in STI as part  of the summary  judgment record in
                 
this case. 

                             -49-
                              49

          There is also specific evidence that the parties to

the  Settlement  Agreement  were  not  negotiating about  the

ongoing transfer of proprietary information directly from  DG

to CSSC.   For example, during the  STI trial, counsel for DG
                                       

asked Canfield  whether, under  the Settlement Agreement,  DG

had  an "obligation  to  give [CSSC]  something."   "No sir,"

replied  Canfield, "Data General was  not offering to give us

anything."

          The   nature  of   the  "maintenance   and  repair"

exception  as  a  third-party  access  agreement  has several

ramifications.  As  a provision designed to ensure  access to

Grumman,  the  exception  was arguably  intended  to override

contrary    restrictions    in   proprietary    legends   and

confidentiality agreements.   Indeed, there is  evidence that

this was the case.  A  letter to Canfield from Carl Kaplan, a

lawyer who  represented  DG in  the settlement  negotiations,

outlined  the  proposed  settlement,  stating  that  improper

utilization of  DG proprietary information "would  be the use

of  that information other than  as marked by  DGC or without
                                                     

DGC's express written permission."  (Emphasis added.)  Kaplan

added  that "[u]se  of  DGC proprietary  information for  the

maintenance of DGC equipment would expressly be permitted the

defendants."    Id.    In  addition,   Canfield's  deposition
                   

testimony suggests  that his primary  concern was  for DG  to

guarantee  CSSC's  right   to  use  proprietary   information

                             -50-
                              50

distributed  to DG  equipment owners,  notwithstanding future

restrictions  on  third-party  access  to  such  information.

Thus, a  jury could  reasonably conclude that  the Settlement

Agreement allowed  Grumman to  gain access to  information in

the  hands  of  DG  equipment   owners  for  the  purpose  of

maintaining DG computers, even  if equipment owners generally

could  not  allow  third  parties access  to  DG  proprietary

information.

          Characterizing  the  exception  as   a  third-party

access  agreement  also means  that  Grumman's  right to  use

copies  of ADEX in the  possession of DG  equipment owners is

necessarily  derivative of  the  rights  of  those  equipment

owners.   As  a consequence,  Grumman only  has the  right to

operate a customer's  copy of  ADEX for the  benefit of  that
       

customer; there is no basis for the proposition  that Grumman

can use its  third-party access rights  to acquire copies  of
                                                  

ADEX for unlimited copying  and use in the service of  any MV

computer.    Indeed,  this   was  the  import  of  Canfield's

testimony in STI.  Referring to a CSSC customer as a "party,"
                

Canfield stated  that he understood the  Settlement Agreement

to  allow  "[CSSC]  to  use whatever  [was]  on  the  party's

equipment  . .  .  for the  repair  and maintenance  of  that
                                                             

party's equipment."    (Emphasis added).40   Furthermore,  to
                 

                    

40.  We note in passing that STI appeared to adopt Canfield's
statement  in the course of  the STI trial.   When Judge Motz
                                    
characterized   Canfield's   testimony   as    stating   that

                             -51-
                              51

the extent that an equipment owner no longer has the right to

possess copies of ADEX, as in the case of a former DG service

customer,   Grumman's   rights   as   a   third   party   are

extinguished.41

          In   summary,  we  conclude   that  the  Settlement

Agreement  merely grants Grumman the right  to gain access to

copies  of ADEX lawfully possessed by a DG equipment owner in

order to  service the computers of  that particular equipment

owner.   Because Grumman's copying  and use of  ADEX does not

fall within this category,  the Settlement Agreement does not

                    

proprietary  maintenance   tools  in  the  hands   of  CSSC's
customers  "were to  be used  . .  . for  the  customer's own
computers,"   counsel  for  STI responded,  "I  don't have  a
problem with that."

41.  Our   conclusion  that   the  "maintenance   or  repair"
exception was  intended to be a  third-party access agreement
also  disposes of  Grumman's  assertion  that the  Settlement
Agreement  somehow obligates DG to distribute its proprietary
maintenance  information  either  to  Grumman's  customers or
directly  to  Grumman.   As  explained  above, the  extrinsic
evidence demonstrates  that the Agreement  concerns Grumman's
right  to  gain access  to  proprietary  information that  DG
distributes to equipment owners.   Nowhere does the Agreement
say   that  DG   will  distribute   to  Grumman   proprietary
information DG  chooses to distribute  only to its  own field
engineers.   Further, it  would be unreasonable  to interpret
the   Agreement  as   providing  for   direct   licensing  of
proprietary  information on demand  given that  the Agreement
did not even  allow the individual  parties to the  Agreement
(Root and Montgomery, both former  DG employees) to retain or
purchase any  proprietary  information they  acquired  during
their employment with DG.   And finally, a mere  agreement to
agree to an unspecified future license would be unenforceable
as  a matter of contract  law.  See STI,  737 F. Supp. at 339
                                       
(citing First Nat'l Bank  v. Burton, Parsons & Co.,  470 A.2d
                                                  
822,  828 (Md. Ct. Spec.  App.), cert. denied,  475 A.2d 1201
                                             
(Md. 1984)).

                             -52-
                              52

serve as a defense  either to the infringement action  or the

trade  secrets claims.   The  district court  did not  err in

granting  partial  summary  judgment  for  DG  on   Grumman's

Settlement Agreement defense.

                             -53-
                              53

4.  Misuse Defense
                  

          Grumman claims  that DG is not  entitled to enforce

its copyrights  or its rights  under state trade  secrets law

because it has "misused" those property rights by engaging in

anti-competitive  behavior in violation  of federal antitrust

laws.   DG argues that there is no "copyright misuse" defense

to a  federal copyright infringement claim  and no applicable

"unclean   hands"   defense   to   the    state   claim   for

misappropriation of trade secrets.  Alternatively,  DG argues

that it did not violate the antitrust laws.

          A "copyright misuse"  defense is not  without legal

support.  In a carefully reasoned opinion, the Fourth Circuit

recently  approved such  a defense after  noting that  it has

long  been  recognized in  the  analogous  context of  patent

infringement.   See Lasercomb America, Inc.  v. Reynolds, 911
                                                        

F.2d 970, 976  (4th Cir. 1990) ("[S]ince copyright and patent

law  serve  parallel  public  interests,  a  `misuse' defense

should apply  to infringement  actions  brought to  vindicate

either right."); see also  3 Nimmer   13.09[A], at  13-269 to
                                   

13-276  (collecting conflicting  decisions of  lower courts);

Ramsey  Hanna,  Note,  Misusing  Antitrust:  The  Search  for
                                                             

Functional Copyright Misuse Standards,  46 Stan. L. Rev. 361,
                                     

404-10 (1994)  (charting  the development  of  the  copyright

misuse defense).  Although DG correctly notes that the misuse

in   Lasercomb  (conditioning   a  copyright  license   on  a
              

                             -54-
                              54

noncompetition  agreement)  is not  identical  to  the misuse

alleged in this case (tying access to ADEX to the purchase of

DG  service  and  refusing  to license  ADEX  to  TPMs),  the

reasoning of  Lasercomb does not turn on  the particular type
                       

of anti-competitive behavior alleged.   DG also suggests that

the policy rationale for a copyright misuse defense is weaker

than  in the case of patent misuse because an exclusive right

to express an  idea in  a particular way  (a copyright) is  a

lesser threat to competition  than an exclusive right to  use

the  idea itself (a patent).  We acknowledge that it is often

more difficult to prove an antitrust violation when the claim

rests  on the  questionable  market power  associated with  a

copyright,  but  that would  not be  a  reason to  prohibit a

defendant from  attempting to meet  its burden of  proof, and

would be a poor reason to refrain entirely from recognizing a

copyright misuse defense.

          Nevertheless,  this case  does  not require  us  to

decide  whether the  federal copyright  law permits  a misuse

defense.     Nor  need  we  determine  whether  Massachusetts

recognizes  an   unclean  hands   defense  to  a   claim  for

misappropriation of  trade secrets.   Grumman does  not claim

that  DG misused  its copyright or  acted inequitably  in any

fashion  other than  through  its alleged  violations of  the

                             -55-
                              55

Sherman  Act.42   And,  because  we  conclude infra,  Section
                                                   

III.B.,  that there  is  insufficient evidence  to justify  a

trial  on   either  of  Grumman's   antitrust  counterclaims,

Grumman's misuse  and  unclean  hands  defenses  are  equally

devoid of merit.43

          5.  Damages
                     

          Grumman's principal assault on  the jury's award of

$27,417,000  in  damages  (DG's  lost profits  and  Grumman's

                    

42.  Note  that the  Lasercomb  court held  that a  copyright
                              
misuse  defense  does  not  require  proof  of  an  antitrust
violation,  only proof that "the copyright is being used in a
manner violative of  the public policy embodied in  the grant
of a copyright."  911 F.2d at 978.  

43.  Even if Grumman's antitrust counterclaims  could survive
summary judgment,  Grumman  would not  necessarily  have  the
privilege  of  interposing  its  counterclaims  as  defenses.
Lasercomb explains  that copyright misuse  and its  ancestor,
         
patent  misuse, are equitable defenses.  See 911 F.2d at 976-
                                            
77.  If copyright misuse is an equitable defense, a defendant
that  has itself  acted inequitably  may  not be  entitled to
raise such a defense.  Cf. 3 Nimmer   13.09[B],  at 13-278 to
                                   
13-279 (noting the possible propriety of denying a defense of
unclean hands "when the defendant has been  guilty of conduct
more  unconscionable and  unworthy  than  the  plaintiff's").
Mere  infringement may  not  be inequitable  in this  context
because a  misuse defense would  appear to sanction  at least
some infringement as a  necessary measure of self-help.   But
violation of  a valid injunction against further infringement
issued   pursuant  to  a   court's  equitable   powers  would
constitute blatantly  inequitable behavior.   Here,  the jury
specifically found that Grumman violated the district court's
1988  injunction against the use  of ADEX.   Grumman does not
appeal that finding.  Accordingly, while Grumman may be  free
to pursue antitrust  counterclaims, cf. Perma Life  Mufflers,
                                                             
Inc.  v.  International Parts  Corp.,  392  U.S. 134,  138-40
                                    
(1968) (holding that  doctrine of  in pari delicto  is not  a
                                                  
defense to  an antitrust suit),  it would not  necessarily be
entitled to raise a defense of copyright misuse predicated on
                           
antitrust violations.

                             -56-
                              56

nonduplicative profits) is that  the district court failed to

give  the jury adequate guidance to find the necessary causal

connection between  Grumman's infringement and  DG's damages.

Because the calculus of causation is partly a function of the

particular theory  of damages  advanced by the  plaintiff, we

divide our discussion accordingly.

               a.  Actual Damages
                                 

          A successful plaintiff in an infringement action is

entitled to "actual damages suffered by [it] as result of the

infringement."    17 U.S.C.     504(b).   Actual  damages are

generally calculated with  reference to the loss in  the fair

market value of the copyright,  often measured by the profits

lost as  a result of the  infringement.  See,  e.g., Eales v.
                                                          

Envtl. Lifestyles, Inc., 958 F.2d  876, 880 (9th Cir.), cert.
                                                             

denied,  113  S. Ct.  605 (1992);  see  generally 3  Nimmer  
                                                           

14.02[A], at 14-8 to 14-9.

          The plaintiff bears the  burden of proving that the

infringement  was  the cause  of its  loss  of revenue.   See
                                                             

Harper & Row,  Publishers, Inc. v.  Nation Enters., 471  U.S.
                                                  

539, 567 (1985);  Frank Music  Corp. v. MGM,  Inc., 772  F.2d
                                                  

505, 514 n.8 (9th Cir. 1985) (citing Shapiro, Bernstein & Co.
                                                             

v. 4636  S. Vermont Ave., Inc.,  367 F.2d 236, 241  (9th Cir.
                              

1966)).   In  defining that  burden, it  is useful  to borrow

familiar  tort law principles of causation  and damages.  See
                                                             

Deltak,  Inc. v. Advanced Sys.,  Inc., 574 F.  Supp. 400, 403
                                     

                             -57-
                              57

(N.D.  Ill.  1983)  (Posner,  J.,   sitting  by  designation)

(referring to "normal tort damages principles"  in discussion

of copyright damages), vacated on other grounds, 767 F.2d 357
                                               

(7th Cir. 1985); 3 Nimmer   14.02[A], at 14-11, 14-20  to 14-
                         

21 n.49.8  (alluding to  notions of  "but for"  and proximate

causation).  Thus, the  plaintiff should first establish that

the infringement was the cause-in-fact of its loss by showing

with  reasonable  probability that,  but for  the defendant's

infringement, the plaintiff would not have suffered the loss.

See,  e.g., Robert R. Jones  Assocs. v. Nino  Homes, 858 F.2d
                                                   

274, 281 (6th Cir. 1988); 3  Nimmer,   14.02[A], at 14-9; cf.
                                                             

Harper  & Row,  471  U.S. at  567  (noting that  in  rebuttal
             

defendant  may "show  that  this damage  would have  occurred

[anyway]   had   there   been  no   taking   of   copyrighted

expression");  Aro  Mfg. Co.  v. Convertible  Top Replacement
                                                             

Co.,  377 U.S. 476, 507 (1964) (noting that actual damages in
   

patent  infringement  case are  based  on  "what [the  patent

holder's] condition  would have been if  the infringement had

not  occurred")  (citation   and  internal  quotation   marks

omitted).     The   plaintiff  must   also  prove   that  the

infringement   was  a   proximate  cause   of  its   loss  by

demonstrating that the existence and amount of the loss was a

natural and  probable consequence  of the infringement.   See
                                                             

Big Seven Music Corp. v.  Lennon, 554 F.2d 504, 509  (2d Cir.
                                

1977)  ("[D]amages  may be  recovered  only  if  there  is  a

                             -58-
                              58

necessary, immediate and direct causal connection between the

wrongdoing  and  the  damages.").     A  plaintiff  may  seek

compensation for  both direct and "indirect"  losses, as long

as  the losses  claimed  are  not  unduly speculative.    See
                                                             

Business Trends Analysts, Inc.  v. Freedonia Group, Inc., 887
                                                        

F.2d  399, 404  (2d  Cir. 1989)  (recognizing possibility  of

recovery  for  loss  of  "enhanced  good  will"  and  "market

recognition"); Abeshouse  v.  Ultragraphics, Inc.,  754  F.2d
                                                 

467,  471  (2d  Cir.  1985)  (ruling  that  claimed  harm  to

"reputation"  and "marketability"  of copyrighted  poster was

"too speculative  to support  any award of  actual damages");

Sunset Lamp Corp.  v. Alsy  Corp., 749 F.  Supp. 520,  524-25
                                 

(S.D.N.Y. 1990) (recognizing possibility of recovery for lost

sales of noninfringed  items); 3 Nimmer    14.02[A], at 14-11
                                       

to 14-21.  At the same time, the plaintiff need not prove its

loss  of revenue  with  mathematical precision.   See,  e.g.,
                                                            

Stevens Linen Assocs. v. Mastercraft  Corp., 656 F.2d 11,  14
                                           

(2d Cir. 1981) ("In  establishing lost sales due to  sales of

an infringing product, courts must necessarily engage in some

degree of speculation.").

          DG  argued  at  trial   that  ADEX  capability  was

essential both to service MV computers and attract customers,

and therefore nearly all of Grumman's MV customers would have

remained  with DG  (or would  have switched  back to  DG) had

Grumman  not touted  its  possession and  use  of ADEX.    In

                             -59-
                              59

opposition,  Grumman  introduced evidence  that  ADEX  was of

little  use to  Grumman's field  engineers  and only  a minor

factor  in consumer's  selection  of a  service  vendor.   In

effect, Grumman  argued that,  even  without ADEX,  customers

would have switched to (or remained with) Grumman in order to

take  advantage of  its  lower prices  and allegedly  higher-

quality service.

          In  its  objections  to  the jury  charge,  Grumman

expressed   concerns  about   the  court's   instructions  on

causation in the  lost profits  context.   Grumman asked  the

court  to  instruct the  jury that  it  was free  to consider

whether  factors other  than  Grumman's infringement  enabled

Grumman  to  win  customers  from  DG.    On  appeal, Grumman

continues to  challenge the adequacy of  the district court's

instructions on causation, and raises several questions about

the sufficiency of the evidence.

               (1)  Jury Instructions
                                     

          The district  court's charge, relevant  portions of

which  are set  forth  in the  margin,  invited the  jury  to

consider  the "diverse  factors"  that make  up a  customer's

choice of  a service  organization, and properly  allowed the

jury to consider whether the majority of MV equipment  owners

would have turned to DG for service had Grumman not possessed

                             -60-
                              60

and used ADEX.44   The instructions also introduced  the jury

to  the  concept of  proximate cause.    The charge  not only

mentioned the concept  by name  but also gave  it content  by

explaining, among other things, that the plaintiff "bears the

burden  of proving  its  damages to  a  reasonable degree  of

certainty," may  not be compensated for  "purely speculative"

damages, and is  entitled only to  "reasonable" damages.   We

conclude  that the  charge  adequately equipped  the jury  to

determine  whether or  not DG  had established  the requisite

causal link between Grumman's infringement and the profits DG

claimed to have lost.45

                    

44.  In its charge, the district court stated:

          If  you conclude  that Grumman  would not
          have been in the business of servicing MV
          computers but for its possession  and use
          of  MV/ADEX,  or  that  some  or  all  of
          Grumman's customers would not  have hired
          Grumman  to  maintain  or   repair  their
          computers  if  Grumman had  not infringed
          Data   General's  copyrights,   then  you
          should consider what percentage  of those
          customers would have  done business  with
          Data General instead.

               You  may take  into account  all the
          diverse factors which . . . might bear on
          the   determination,   including   price,
          customer  loyalty  and level  of customer
          satisfaction.

45.  Grumman's  other challenges to the jury instructions are
either meritless  or moot.   First,  Grumman  claims that  an
apportionment  instruction  (the  subject  of  the  following
section) would have affected the outcome  of the lost profits
analysis.    As we  explained  above,  however, the  district
court's instructions enabled the  jury to make findings about
the relative role of  infringing and noninfringing factors in

                             -61-
                              61

               (2)  Sufficiency of the Evidence
                                               

          Grumman's  challenge to  the evidentiary  basis for

the  jury's award  of actual  damages is  less developed  and

equally  unavailing.   Upsetting a jury's  damage award  is a

daunting  task  for  any  appellant, for  we  must  draw  all

reasonable inferences in favor  of the verdict, upholding the

award if it  derives from "any rational appraisal or estimate

of the damages that could be based on the evidence before the

jury."   Anthony v. G.M.D.  Airline Servs., 17  F.3d 490, 493
                                          

(1st  Cir.  1994)  (citations  and  internal  quotation marks

omitted).     The  likelihood  of  a   victorious  appeal  is

especially remote in the  absence of rigorous  argumentation.

Cf. Chakrabarti v. Cohen,      F.3d    ,     (1st  Cir. 1994)
                        

[Nos. 92-1987 and  92-1988, slip op. at  8] (suggesting that,

when  challenging  the   sufficiency  of   the  evidence,   a

                    

customers' selection of Grumman over DG.  Further examination
of the value added  by Grumman to its own products would have
been  unnecessary.   Second,  Grumman  contends  that it  was
impermissible for DG to  calculate its lost profits based  on
its  monopoly  prices.   This  argument  is untimely  because
Grumman did not  raise this  issue in its  objections to  the
jury instructions.  In any event, Grumman has not established
that DG's  exploitation of  its monopoly is  unlawful, infra,
                                                            
Section III.B.2., and  has not provided any authority for the
proposition that actual  damages cannot be based  on the loss
of lawful monopoly profits.  Third, Grumman suggests that the
         
damage  award was  inflated because  the jury  was improperly
forbidden  from  considering the  extent  to  which the  1976
Settlement  Agreement  authorized  Grumman's  use   of  ADEX.
However, as illustrated supra, Section III.A.3.,  Grumman did
                             
not   present  trialworthy   evidence  that   the  Settlement
Agreement authorized the  acquisition and use of ADEX  in any
meaningful sense.

                             -62-
                              62

defendant-appellant  must  make a  "serious effort  . .  . to

analyze the evidence taking it in the light most favorable to

[the  plaintiff] and  resolving  credibility issues  in  [the

plaintiff's]  favor").   Moreover,  the  calculation of  lost

profits  will always  involve "some  degree  of speculation."

Stevens Linen Assocs., 656 F.2d at  14.  As a result, we rely
                     

on the appellant to specify with some precision the manner in

which unduly speculative reasoning is likely to have infected

the jury's verdict.

          Grumman raises several  specific concerns.   First,

Grumman complains that the jury had no basis to conclude that

Grumman would not be  in the MV business because  DG's damage

expert,  Alan   Friedman,  did  not  consider   the  relative

infrequency of  Grumman's use of  ADEX, or the  value Grumman

added  to  its product  through "substantially  lower prices,

superior service and higher level of  customer satisfaction."

Grumman's   ultimate  concern   is   that  "no   attempt   at

apportionment was made."   But  Friedman did not  set out  to

show that there was  nothing attractive about Grumman service
                            

apart  from  its possession  and use  of  ADEX.   Instead, he

reported --  and the  jury apparently  believed --  that, for

most owners of MV equipment, ADEX capability was the critical

attribute  in  a  service  vendor.   As  a  result,  Friedman

concluded, ADEX capability was the sine qua non  of Grumman's
                                               

success  in its  chosen  niche as  a  national vendor  of  MV

                             -63-
                              63

service.  Drawing all  reasonable inferences in favor  of DG,

we conclude that a reasonable jury was free to agree.

          Grumman  also  argues  that  the  jury  must   have

improperly  followed Friedman's  lead in  adding to  the lost

profits  figure all  of  the service  and  hardware needs  of

Grumman's  MV  customers  that  DG was  capable  of  filling.

Grumman notes  that Friedman based his  testimony on evidence

that customers prefer to have a single vendor of service, but

claims that  this  evidence deserves  little  weight  because

"customers   that  had   gone   to  [Grumman]   had   already

demonstrated  their  particular  price/service  sensitivity."

Viewed in a light most favorable to the verdict, however, the

record   evidence  adequately  supports  the  inference  that

Friedman invited the  jury to  draw.  For  example, while  MV

equipment owners  may have switched  to Grumman in  search of

lower prices  and better service, the  evidence suggests that

none of them had to give up  a preference for single sourcing

to  do so.    Indeed, the  evidence  suggests that  Grumman's

drawing  power was due in part to  its ability to be a single

source of  service, particularly for customers  with multiple

brands of  computer equipment.   Nor  did Grumman  attempt to

rebut Friedman's  view with  evidence of MV  equipment owners

who  sacrificed  their  preference  for  single  sourcing  in

                             -64-
                              64

certain  circumstances.46   More  importantly,  Friedman  did

not presume  that customers would be  entirely insensitive to

issues  of  price and  quality.    In calculating  DG's  lost

profits, he reduced the figure by an estimate of the business

DG  would  itself  have  lost  to  competition  from  TPMs.47

Finally, we note that DG did not seek compensation for a loss

in "goodwill"  or "market recognition" that  was difficult to

ascertain, cf. Business Trends, 887  F.2d at 404, but  rather
                              

for the loss of  a reasonably verifiable number of  customers

with a limited  and predictable  set of service  needs and  a

demonstrated  tendency to satisfy those needs by turning to a

single  vendor.  In short, the evidence does not suggest that

the jury's  award of actual damages falls  outside the "`wide

range  of arguable  appropriateness.'"    Toucet v.  Maritime
                                                             

                    

46.  Such rebuttal evidence, if  it existed, should have been
easily  within Grumman's  reach.   For example,  the evidence
suggests that  purchasers of  DG equipment generally  used DG
service in the initial  warranty period.  Thus, owners  of DG
equipment  might  periodically  upgrade a  portion  of  their
equipment, and therefore there would be times when one  owner
will have some newly  upgraded equipment still under warranty
and some older  equipment no longer under  warranty.  Grumman
could  readily have  introduced evidence  that some  of these
equipment  owners ignored  their single-vendor  preference by
turning to a TPM for service of equipment not under warranty.
Similarly, it would  not have been  difficult for Grumman  to
discredit  Friedman's  opinion  by  showing  that  DG  had  a
significant  number of price-conscious  service customers who
regularly   turned  to  other  vendors  when  purchasing  new
equipment, or  that customers who  purchased DG service  on a
"time and materials" basis often used TPMs as well. 

47.  In estimating this "volume loss," Friedman assumed that,
without  ADEX, Grumman  would not  have  been among  the TPMs
competing for MV-related business.

                             -65-
                              65

Overseas  Corp.,  991 F.2d  5,  11 (1st  Cir.  1993) (quoting
               

Wagenmann v. Adams, 829 F.2d 196, 216 (1st Cir. 1987)).
                  

               b.  Infringer's Profits
                                      

          In   addition  to   actual  damages,   a  copyright

plaintiff may  also  recover the  infringer's  nonduplicative

profits,  i.e.,  "any  profits  of  the  infringer  that  are

attributable  to  the infringement  and  are  not taken  into

account  in  computing  the  actual damages."    17  U.S.C.  

504(b).  In the context of infringer's profits, the plaintiff

must  meet only a minimal burden of proof in order to trigger

a  rebuttable presumption  that the defendant's  revenues are

entirely attributable  to the  infringement; the burden  then

shifts to the  defendant to demonstrate  what portion of  its

revenues represent  profits, and what portion  of its profits

are not traceable to the infringement.  See id.; Frank Music,
                                                            

772  F.2d at 514; Cream Records, Inc. v. Jos. Schlitz Brewing
                                                             

Co.,  754  F.2d  826,  828 (9th  Cir.  1985).   Specifically,
   

Section 504(b) provides:

          In establishing  the infringer's profits,
          the  copyright  owner   is  required   to
          present  proof  only  of the  infringer's
          gross  revenue,  and  the   infringer  is
          required to  prove his or  her deductible
          expenses  and  the  elements   of  profit
          attributable  to  factors other  than the
          copyrighted work.48

                    

48.  Contrary to DG's unsupported assertions, a  defendant in
a Massachusetts trade secrets action appears to have the same
right  to ask for apportionment along with the same burden of
proof.  Citing  17 U.S.C.    504(b) as persuasive  authority,

                             -66-
                              66

          DG  introduced  evidence that,  of  Grumman's gross

revenue from  MV-related business  during the period  1984 to

1990, $5.4 million consisted  of business eliminated from the

calculation of DG's lost profits.  Although no further  proof

was required,  DG accepted Grumman's estimates  of its profit

margin, and  concluded that Grumman's  nonduplicative profits

amounted  to  approximately  $1.6  million.49    Anticipating

Grumman's  attempt to  prove the  need for  apportionment, DG

also argued that, without  ADEX, Grumman would not have  been

in  the MV  service business  on a  national scale,  and that

                    

the Massachusetts  Supreme Judicial  Court has set  forth the
following rule for apportionment in trade secrets cases:

          Once  a  plaintiff  demonstrates  that  a
          defendant made a profit  from the sale of
          products  produced by  improper use  of a
          trade  secret, the  burden shifts  to the
          defendant  to   demonstrate  those  costs
          properly to be offset against  its profit
          and   the   portion    of   its    profit
          attributable  to  factors other  than the
          trade secret.

USM  Corp. v.  Marson Fastener  Corp., 467 N.E.2d  1271, 1276
                                     
(Mass. 1984).  See  also Jet Spray Cooler, Inc.  v. Crampton,
                                                            
385  N.E.2d 1349,  1358-59 n.14  (Mass. 1979)  (citing, inter
                                                             
alia, Sheldon  v. Metro-Goldwyn Pictures Corp.,  106 F.2d 45,
                                              
48 (2d Cir. 1939), aff'd, 309 U.S. 390 (1940)).
                        

49.  This amount  included DG's estimated  "volume loss"  and
"excluded revenue."  "Volume  loss" represents the MV-related
business  that DG  would have lost  in competition  with TPMs
even  if  DG  had been  the  only  service  vendor with  ADEX
capability.   "Excluded  revenue" represents  the  MV-related
business that DG did not  have the capacity or the desire  to
seek,  such as service contracts for  certain systems with at
least  one non-DG CPU or service contracts for certain non-DG
peripheral equipment attached to DG CPUs.

                             -67-
                              67

therefore Grumman would not have earned  the remainder of its

MV-related profits.   In  other words, DG's  theory was  that

because ADEX  capability was generally  essential to  attract

customers with  MV computers,  few such customers  would have

chosen Grumman as a service  vendor, causing Grumman to leave

(or  perhaps never enter) the national  market for service of

MV-related  equipment.    Thus, according  to  DG,  Grumman's

nonduplicative profits were  the indirect result of  consumer

choices distorted by Grumman's infringement.

          It is unclear whether Grumman contested DG's theory

on  the merits,  although Grumman  did introduce  some expert

testimony  that   owners  of  MV  equipment  were  relatively

indifferent to  the ADEX  issue  in their  choice of  service

vendors.  As  amplified by its arguments  on appeal, however,

Grumman's primary  strategy was to  invite the  jury to  take

Grumman's  infringement as a given,  and focus instead on why

its  customers  were  willing  to pay  for  Grumman  service.

Grumman argued that factors other than its possession and use

of ADEX contributed to its customers' willingness to pay, and

that it was entitled  to retain a corresponding share  of the

resulting profits.  Grumman  introduced some evidence tending

to show that its  customers attached high value to  the price

and quality of Grumman service,  as well as Grumman's ability

to service non-DG equipment in a mixed-equipment system.

                             -68-
                              68

          Recognizing that DG's "but for" theory focused on a

different   aspect  of   consumer  behavior   than  Grumman's

"contributing factors" theory, Grumman argued below that  the

court's  instructions should  leave  the jury  free to  adopt

either  line of  reasoning.   Grumman's  suggested method  of

doing  so  was for  the  court to  instruct the  jury  on the

concept of apportionment of  infringer's profits set forth in

Section 504(b).    The district  court agreed  that the  jury

could adopt  the approach  best suited to  the circumstances,

but refused to give an explicit instruction on apportionment.

          Assuming for the  moment that Grumman  was entitled

to invite the jury  to adopt its analytical framework,  we do

not   believe  that   the   court's   instruction   "properly

apprise[d]" the  jury of  the validity  of such  an approach.

Joia v. Jo-Ja Serv. Corp., 817 F.2d 908, 912 (1st Cir. 1987),
                         

cert. denied, 484  U.S. 1008 (1988).   Although the  district
            

court  instructed  the  jury  to  include  among  infringer's

profits   only   those    revenues   "attributable   to   the

infringement,"  at  no point  did the  court fully  reveal or

explain   the  relatively  difficult   statutory  concept  of

"elements of  profit attributable  to factors other  than the

copyrighted work."   17  U.S.C.    504(b).   As noted  in the

preceding  section, the  court  did refer  (at  least in  its

instruction  on actual  damages)  to "diverse  factors" which

might have  influenced customers' choice of  Grumman over DG,

                             -69-
                              69

but the  court did not  inform the jury  that there  may have

been  many  reasons for  customers'  willingness  to pay  for

Grumman service  apart from  the fact that  Grumman possessed

and used ADEX.  Cf. Walker v. Forbes, Inc., No. 93-1273, 1994
                                          

WL  287173, at *7 (4th Cir. June 30, 1994) (praising district

court's  "rich and detailed instructions . . . explaining . .

.  the correct  apportionment of  profit attributable  to the

infringement,  [and]  faithfully  explaining  the  rules  and

procedures set out in the statute").

          It is unclear why,  if the district court  chose to

reject Grumman's proposed instruction, it did not simply read

to the jury the language of Section 504(b).   We may overlook

its failure to do so only if there is no basis in law or fact

for  the application of Grumman's theory.  See Joia, 817 F.2d
                                                   

at 912 (holding that "all parties are entitled to an adequate

jury instruction upon the  controlling issues"); cf. Allen v.
                                                          

Chance Mfg. Co., 873  F.2d 465, 470 (1st Cir.  1989) (holding
               

that remand  on basis of instructional error is required only

if   error   "may   have   unfairly   affected   the   jury's

conclusions").  For  the reasons set forth below,  we believe

that  Grumman's  theory  is  firmly  rooted  in  the  law  of

copyright and the record of this case.

          The  defendant's  burden  under  the  apportionment

provision of  Section 504(b) is primarily  to demonstrate the

absence  of a causal link between the infringement and all or

                             -70-
                              70

part  of the profits claimed  by the plaintiff.   See Walker,
                                                            

1994 WL 287173, at *3-4 (describing Section 504(b) as "a rule

of  causation").    Because  the  rebuttable  presumption  of

causation represents a  presumption as to  both cause-in-fact

and  proximate  cause,  there   are  two  avenues  of  attack

available to a copyright defendant.  First, the defendant can

attempt  to  show that  consumers  would  have purchased  its

product even without the infringing element.   See, e.g., id.
                                                             

at  *4  (holding that  district  court  properly allowed  the

defendant  to show  that  an unauthorized  reproduction of  a

photograph in an issue of its magazine had no causal relation

to "amounts  of revenue .  . . committed  to the  issue sight

unseen").50   Alternatively, the defendant may  show that the

existence and amount of  its profits are not the  natural and

probable consequences of the infringement alone, but are also

the result of  other factors which either add intrinsic value

to the product or have  independent promotional value.   See,
                                                            

e.g., Sheldon v. Metro-Goldwyn  Pictures Corp., 309 U.S. 390,
                                              

407-08  (1940)  (approving  apportionment  where  profits  of

defendant's  film  were  largely   attributable  not  to  the

plaintiff's pirated  story but rather to  the "drawing power"

of the star performers and the artistry of others involved in

                    

50.  Note, however, that if the plaintiff cannot prove actual
damages  and the  defendant shows  that none  of its  gain is
attributable to  the infringement, the plaintiff  would still
be entitled to elect statutory damages.  See 17 U.S.C. 504(c)
                                            
(1988); see generally 3 Nimmer   14.04, at 14-47 to 14-79.
                              

                             -71-
                              71

the creation of the film); Abend v. MCA, Inc., 863 F.2d 1465,
                                             

1480  (9th  Cir.  1988)  (remanding  for apportionment  where

factors other  than the underlying story  -- particularly the

talent and popularity of Alfred Hitchcock, Jimmy Stewart, and

Grace Kelly  -- "clearly contributed"  to the success  of the

film "Rear  Window"), aff'd on  other grounds,  495 U.S.  207
                                             

(1990); Sygma Photo  News, Inc. v. High Soc'y Magazine, Inc.,
                                                            

778  F.2d 89, 96  (2d Cir.  1985) (apportioning  profits from

sales  of "Celebrity Skin"  magazine where  promotional cover

contained not only infringing  photograph of Raquel Welch but

also  a list  of other  nude celebrity  photographs contained

within);  Cream   Records,  754  F.2d  at  828-29  (upholding
                         

apportionment of  profits from  malt liquor  sales apparently

based on popularity of  noninfringing product and promotional

value of  noninfringing elements of  defendant's commercial);

cf. USM Corp., 467 N.E.2d at 1277 (trade secrets; recognizing
             

that apportionment  would have  been proper if  defendant had

demonstrated that  factors  such  as  "management  skill"  or

"capital investment"  had contributed  to the success  of its

product).   Grumman  apparently  wished to  tread the  second

path, and it was unquestionably entitled to do so.

          Grumman  also  suggests  on  appeal that  the  jury

should have  been instructed  that it  could not  accept DG's

theory  on the apportionment issue because  DG gave little or

no weight to  Grumman's contributions.  But the only argument

                             -72-
                              72

presented to the district court was that the court should add
                                                             

an  instruction to inform the  jury that it  was permitted to
                                                          

apportion Grumman's profits.   It is usually  imprudent for a

court of appeals  to pass on  an issue not  presented to  the

district court in the first instance, and we decline to do so

in  these  circumstances.    See, e.g.,  Mariani  v.  Doctors
                                                             

Assocs.,  983 F.2d  5,  8  n.4  (1st  Cir.  1993)  ("We  have
       

repeatedly warned  that we will not  entertain arguments made

for  the first time on appeal.") (citing FDIC v. World Univ.,
                                                             

Inc.,  978 F.2d  10, 13  (1st Cir.  1992)); United  States v.
                                                          

Zannino,  895 F.2d  1, 17  (1st Cir.)  ("[A] litigant  has an
       

obligation   to  spell   out  its   arguments   squarely  and

distinctly, or else forever  hold its peace.") (citations and

internal  quotation marks  omitted), cert.  denied, 494  U.S.
                                                  

1082 (1990).

          We   are  compelled  to   add,  however,   that  an

instruction on apportionment would not rob DG's theory of all

possible meaning.   In the first place, DG  was free to argue

that  Grumman's  infringement  was   a  "but  for"  cause  of

Grumman's nonduplicative  profits, even  if the  court should

have explained to  the jury that Grumman  could still satisfy

its  burden  by   demonstrating  the  absence  of   proximate

causation.    In addition,  DG  was  entitled to  argue  that

Grumman's  infringement  should  be  viewed as  the  sole  or

overriding cause of  Grumman's profits.  Cf. Frank Music, 772
                                                        

                             -73-
                              73

F.2d at  518 (noting that  "no one  element was  the sole  or

overriding reason" for the success of  defendant's infringing

"Hallelujah Hollywood" stage show).

          Moreover, although  apportionment primarily depends

on  questions  of  causation,  it is  ultimately  a  delicate

exercise informed  by considerations  of fairness  and public

policy, as well as  fact.  The doctrine of  apportionment was

"established  upon  equitable  principles"  in  the analogous

context of  patent infringement.   Sheldon, 309 U.S.  at 401.
                                          

And, in adopting the principle of apportionment for copyright

cases, the  Court observed  that "[e]quity is  concerned with

making a fair  apportionment so that neither  party will have
             

what  justly belongs  to the  other."   Id. at  408 (emphasis
                                           

added).  See also 3 Nimmer    14.03[C], at 14-42 (noting that
                          

Copyright Act of  1976 "expressly adopted" the  apportionment

principle  announced  in  Sheldon).   In  fact,  the  burden-
                                 

shifting  rule in Sheldon  (and Section 504(b))  is itself an
                         

equitable  response to  an infringer  who has  frustrated the

task of  apportionment by co-mingling profits.   See Sheldon,
                                                            

309  U.S. at 401 ("[T]he defendant, being responsible for the

blending  of the lawful with  the unlawful, had  to abide the

consequences,  as in  the  case  of  one who  has  wrongfully

produced a  confusion of goods.") (referring  to Callaghan v.
                                                          

Myers,  128 U.S.  617  (1888)).   Equitable factors  may also
     

affect  the substance  of  the apportionment  analysis.   For

                             -74-
                              74

example, where the plaintiff  cannot prove actual damages and

the   defendant's  profits  are  only  from  the  sale  of  a

noninfringing  product,  the  only  way  to  prevent   unjust

enrichment  may  be  to  place  more  weight  on  the profit-

generating effect of an infringing sales tool used to promote

that   product.     See,   e.g.,  Konor   Enters.  v.   Eagle
                                                             

Publications,  Inc.,  878  F.2d  138,  140  (4th  Cir.  1989)
                   

(suggesting that defendant may not be entitled  to retain any

of the profits  from sale  of advertising space  where it  is

"plausible  . . . that  all profits were  a direct result" of

infringing  marketing  information  distributed to  potential

advertisers).

          Similarly,  the  policies underlying  the Copyright

Act may play some role in  the apportionment of profits.  For

example, Sheldon and  its progeny suggest that  apportionment
                

is  almost  always available  in  the  context of  infringing

derivative works, perhaps in part because original expression

added  by  the  infringer  is itself  entitled  to  copyright

protection.   Furthermore, where the plaintiff  is seeking to

vindicate its right  to exclude others rather than  its right

to collect a licensing fee, see 17 U.S.C.   106 (1988 & Supp.
                               

IV 1992) (describing  rights of copyright  owner), it may  be

more appropriate to view  the infringement as an "overriding"

cause  of  the  defendant's  profits. In  such  cases,  rigid

isolation  of the value of  the infringement to the defendant

                             -75-
                              75

(which would approximate a "reasonable"  licensing fee) would

effectively condone  a license the plaintiff  never wished to

grant.  Lastly, we note that an unjust enrichment theory aims

to  strip the defendant of its ill-gotten gains, see, e.g., 3
                                                          

Nimmer    14.01[A],  at 14-6,  encourage compliance  with the
      

Copyright  Act, see,  e.g.,  Walker, 1994  WL  287173, at  *2
                                   

(noting  that  an award  of  infringer's  profits "makes  the

infringer  realize that it is cheaper to buy than to steal"),

and perhaps  "compensate" a plaintiff unable  to prove actual

damages, see Sheldon, 309 U.S. at 399 (describing the goal of
                    

an award of infringer's profits as "just compensation for the

wrong").  Therefore, apportionment of infringer's profits may

be  particularly  appropriate  where a  concurrent  award  of

actual damages significantly serves all three purposes.51

          In  light of  the  discussion above,  we hold  that

Grumman was  entitled to  an instruction on  apportionment in

order  to allow  the jury  to determine  whether and  to what

                    

51.  Our discussion of equitable and policy considerations is
intended  to  aid courts  in  apportioning  profits when  the
parties submit the issue of infringer's profits to the court,
see  Sid  &  Marty  Krofft Television  Productions,  Inc.  v.
                                                         
McDonald's Corp., 562 F.2d 1157, 1175 (9th Cir. 1977) (noting
                
that  parties  may  stipulate  to  bench  trial on  issue  of
infringer's   profits),  and   to   provide   some   rational
explanation  for the  discordant aspects  of the case  law on
apportionment.   While  a court  may instruct  the jury  that
damages should be "reasonable" (as the court in this case did
without objection from either  party), we do not hold  that a
court  may ask the jury itself to weigh matters of equity and
public policy.

                             -76-
                              76

extent   apportionment  of  its  nonduplicative  profits  was

reasonable under the circumstances of this case.

          Whether  a  remand  is  necessary  is  a  different

question,  but  one   readily  resolved.     Grumman  clearly

introduced evidence that would have  permitted a jury to find

that  Grumman's customers  were  willing to  pay for  Grumman

service for reasons  beyond its possession  and use of  ADEX.

Indeed, we believe  that Grumman's  evidence is  sufficiently

compelling that Grumman is  entitled to some apportionment as

a  matter of  law.    Because  the  absence  of  an  explicit

instruction  on apportionment "may have unfairly affected the

jury's conclusions,"  Allen, 873 F.2d  at 470, we  remand the
                           

case to  the district court for an  appropriate resolution of

theissue ofapportionment ofGrumman's nonduplicativeprofits.52

                    

52.  In  order  to  avoid  undue  confusion  and  unnecessary
proceedings, we add the  following procedural notes to assist
the district court in resolving the issue of apportionment of
Grumman's nonduplicative profits.
     Cognizant of our authority  to take whatever action "may
be  just  under  the circumstances,"  28  U.S.C.     2106, we
believe that remittitur would  provide the most equitable and
efficient means of remedying  the error.  The  factual record
was  highly developed  at  trial on  the  issue of  Grumman's
profits, leaving a trail adequate to allow the district court
to approximate the effect of the erroneous instruction on the
jury's  verdict.   See 6A  James Wm.  Moore, et  al., Moore's
                                                             
Federal  Practice     59.08[7],   at  59-207  (2d  ed.  1994)
                 
(explaining that if "the effect of [an erroneous instruction]
can be reasonably approximated  to a definite portion of  the
amount of the verdict, the  appellate court may condition its
affirmance  on the  plaintiff  remitting that  amount of  the
verdict which  is apparently traceable to  the error below").
Moreover,  Grumman  requested  remittitur  as  an alternative
remedy in its Rule 59 motion.

                             -77-
                              77

          6.  Attorney's Fees
                             

          Because it appears that an award of attorney's fees

has not been quantified, see Grumman VII, 825 F. Supp. at 370
                                        

(ordering DG  to  resubmit  its  application  for  attorney's

fees), the merits of such an award are not before this court.

Nonetheless,  Grumman mounts  a procedural  attack that  does

appear  to be ripe  for review.   Grumman claims that  (1) DG

"elected"  the state  trade  secrets remedy  over any  remedy

available under  the Copyright Act, and  (2) since attorney's

fees  are  only available  under the  Copyright Act,  and not

                    

     We  are aware  that the  jury  did not  separately award
actual  damages and  infringer's profits.   Nevertheless, the
verdict is relatively close to the amount DG requested and it
is  extremely unlikely that  the jury  would not  have relied
primarily  on  one  or  the  other  of  the  competing expert
theories.  DG requested $28,003,000 in damages, consisting of
$26,364,000 in lost profits and $1,639,000 in  nonduplicative
profits.    The jury  awarded DG  a  total of  $27,417,000 in
damages -- $586,000  less than  the requested amount.   As  a
result,  DG appears  to have  won  infringer's profits  of at
least  $1,053,000  ($27,417,000  - $26,364,000)  and  at most
$1,639,000.    While  we   do  not  mandate  this  particular
analysis, we are confident that the district  court, with its
superior understanding of the voluminous record, will be able
to estimate either the relevant figures or, if necessary, the
"maximum effect" of the error on the jury's verdict.  See id.
                                                             
  59.09[7], at 59-207 to 59-208 ("Even when the effect of the
error cannot  be  allocated  to  a distinct  portion  of  the
verdict, remittitur may  still be used if the  maximum effect
of the error can be established.").
     If  DG were to refuse remittitur  in favor of a new jury
trial   on   the   issue  of   apportionment   of   Grumman's
nonduplicative   profits,  we  hope  that  the  parties  will
negotiate in good faith to settle the remanded portion of the
case or at least agree to a more expeditious procedure.  See,
                                                            
e.g., Sid & Marty Krofft, 562 F.2d at 1175 (noting that right
                        
to  jury   trial  extends   to  adjudication  of   claim  for
infringer's profits  but that parties may  stipulate to bench
trial).

                             -78-
                              78

state trade secrets law, DG is not entitled to any attorney's

fees.   Grumman is wrong in both respects.  DG did not simply

elect  state law  remedies.   DG  proposed  a judgment  form,

wholly adopted  by the district court, that  included (1) the

compensatory  damages awarded  by the  jury,53 (2)  state law

statutory damages,  (3) state  law prejudgment  interest, and

(4)  federal law  attorney's fees.   Nor  was DG  required to

forsake nonduplicative elements  of the  various federal  and

state  law remedies.   See Foley v. City  of Lowell, 948 F.2d
                                                   

10,  17  (1st Cir.  1991) (suggesting  that,  as long  as the

damages are "segregated  into federal and  state components,"

plaintiff need not  choose one  body of law  under which  all

damages  will be paid); cf. Freeman v. Package Mach. Co., 865
                                                        

F.2d 1331,  1343-45 (1st  Cir. 1988) (holding  that plaintiff

may not receive award based on federal and state law so as to

receive   double  recovery  for   same  element  of  relief);

Schroeder v. Lotito, 747  F.2d 801, 802 (1st Cir.  1984) (per
                   

curiam) (approving  judgment  for  state  law  accounting  of

profits and federal law attorney's fees).  Because DG has not

requested a  double award  of attorney's fees,  there was  no

error in the award of attorney's fees under federal law.

                    

53.  The jury awarded the same amount of compensatory damages
for  both the  federal copyright  infringement claim  and the
state trade secrets claim.

                             -79-
                              79

B.  Grumman's Antitrust Counterclaims
                                     

          The district court granted DG's motions for summary

judgment with respect to  Grumman's tying claim under Section

1  of the  Sherman Act  as well  as its  monopolization claim

under  Section  2.    We affirm  both  rulings,  although  on

somewhat different grounds.

          1.  Illegal Tying     
                           

          Section  1 of  the Sherman  Act prohibits  a seller

from  "tying" the sale  of one product  to the  purchase of a

second product  if the  seller thereby avoids  competition on

the merits  of the "tied" product.  See 15 U.S.C.   1 ("Every
                                       

contract  . . . in  restraint of trade  or commerce .  . . is

declared to be illegal."); Jefferson Parish Hosp. Dist. No. 2
                                                             

v. Hyde, 466 U.S. 2, 9-18 (1984); Lee v. Life  Ins. Co. of N.
                                                             

Am., 23 F.3d 14, 16 (1st Cir. 1994); Grappone, Inc. v. Subaru
                                                             

of  New England, Inc., 858  F.2d 792, 794-97  (1st Cir. 1988)
                     

(Breyer, J.); Wells Real Estate,  Inc. v. Greater Lowell  Bd.
                                                             

of Realtors, 850 F.2d  803, 814-15 (1st Cir.), cert.  denied,
                                                            

488 U.S. 955  (1988).   In addition  to outlawing  "positive"

ties likely  to restrain competition, Section  1 also forbids

"negative" ties -- arrangements  conditioning the sale of one

product on an agreement not to purchase a second product from
                           

competing  suppliers.    See   Eastman  Kodak  Co.  v.  Image
                                                             

Technical Servs., Inc., 112 S. Ct. 2072, 2079  (1992) (citing
                      

                             -80-
                              80

Northern  Pac.  Ry. Co.  v. United  States,  356 U.S.  1, 5-6
                                          

(1958)); Lee, 23 F.3d at 16.
            

          There are  essentially four elements of  a per se54
                                                           

tying  claim:  (1) the  tying and tied  products are actually

two  distinct   products;  (2)  there  is   an  agreement  or

condition, express  or implied,  that establishes a  tie; (3)

the entity accused  of tying has sufficient economic power in

the  market  for  the  tying product  to  distort  consumers'

choices with respect  to the  tied product; and  (4) the  tie

forecloses a substantial amount of commerce in the market for

the tied product.   See, e.g., Kodak, 112 S.  Ct. at 2079-81;
                                    

Grappone, 858 F.2d at 794; see also STI, 963 F.2d at 683.
                                       

          Grumman  claims  that   DG  unlawfully   restrained

competition in the sale of MV service by tying access to ADEX

(the tying product) to an equipment owner's promise to either

purchase service  from DG  (a positive  tie) or not  purchase

service  from any  other vendor  (a negative  tie).   While a

substantial  amount of commerce is potentially involved, DG's

motions for summary judgment claimed that  there was no proof

of  any of the  first three elements  of a tying  claim.  The

district court denied DG's  first motion for summary judgment

                    

54.  Grumman does  not argue at  this stage that  DG violated
the "rule of reason" and proceeds  only on a "per se" theory.
                                                    
See  Jefferson  Parish, 466  U.S.  at 29-31  (noting  that in
                      
absence of  per se liability, antitrust  plaintiff must prove
                  
that  defendant's conduct  had an  "actual adverse  effect on
competition").

                             -81-
                              81

but  then  granted its  renewed motion,  stating in  a sparse

opinion that, as in  STI, there was "no evidence  which would
                        

warrant a  finding of  the existence  of a  tying agreement."

Grumman  V, 834 F. Supp.  at 485.  See also  STI, 963 F.2d at
                                                

686 ("[STI's]  evidence at bottom  shows nothing more  than a

unilateral  decision by  Data General  to license  MV/ADEX to

CMOs  but not  to  others.").   We  agree with  the  district

court's conclusion  that there is insufficient  evidence of a

negative  tying arrangement, but  believe that the allegation

of a positive tie falters at an earlier step.

               a.  Two Products
                               

          To   establish  the   existence  of   two  separate

products, Grumman must identify the products at issue in each

tie and demonstrate that "there is `sufficient demand for the

purchase  of  [the tied  product]  separate  from [the  tying

product] to identify a distinct product market in which it is

efficient to  offer [the  tied product] separately  from [the

tying  product].'"    STI,  963  F.2d  at  684  (brackets  in
                         

original) (quoting Jefferson Parish, 466 U.S.  at 21-22.  See
                                                             

also  Jefferson  Parish,  466   U.S.  at  40  (O'Connor,  J.,
                       

concurring) ("When the economic advantages of joint packaging

are substantial  the package  is not appropriately  viewed as

two  products,  and  that should  be  the  end  of the  tying

inquiry."); Lee, 23 F.3d at 16 n.6 (noting that there must be
               

evidence of "sufficient  consumer demand for  each individual
                                                             

                             -82-
                              82

product,  and  not merely  as part  of an  integrated product

`package'") (emphasis in original).  

          While Grumman  has characterized the  tying product

in  general  terms  as  "access to  ADEX,"  Grumman  actually

identifies  two  different  tying products:  ADEX  service (a

service) and ADEX  software (a  good).  With  respect to  the

positive  tie, Grumman alleges that  DG will not provide ADEX

service (i.e., use  of ADEX  by a DG  service technician)  to
       

equipment  owners  unless  they  also  purchase   DG  support

services.  With respect to the  negative tie, Grumman alleges

that  DG will not  license ADEX software  to equipment owners
                                        

unless they  agree not  to purchase  support services  from a

TPM.

          Grumman  has  not  introduced  evidence  that  ADEX

service  is  a  product  separate from  other  components  of

service.    There  is  no  evidence  that  any  customer  has

purchased, or would wish to purchase, ADEX service separately

from the purchase  of other  components of service.   Nor  is

there evidence that it  would be efficient for any  entity to

provide  ADEX service  separately  from  other components  of

service.55  

                    

55.  The  Fourth Circuit  came to a  similar conclusion  on a
nearly identical record when it rejected STI's tying claim:

          If   "access   to"  MV/ADEX   and  repair
          services   are   considered  to   be  the
          products  in  question,  appellants  have
          clearly  failed   to  produce  sufficient

                             -83-
                              83

          In contrast, the record does  contain evidence that

ADEX software  is a  product separate from  support services.

It  is undisputed that CMO  customers wish to  license -- and

have licensed  -- ADEX  software  without purchasing  support

services from  DG or a TPM.  There is also evidence that some

of Grumman's customers would  consider licensing ADEX from DG

so that Grumman could continue to service their MV computers.

In  addition, the  summary  judgment record  would support  a

finding that for many years DG provided diagnostics and other

service "tools" to computer purchasers as  part of a computer

equipment package,  regardless  whether the  owner  performed

self-maintenance  or  hired  DG  or a  TPM  to  maintain  the

computers.  In fact, there is evidence that through the early

1980s, DG  provided service  "tools" --  including diagnostic

software other than ADEX -- directly to TPMs.  Finally, there

is some  evidence  that other  computer  manufacturers  (IBM,

Digital  Equipment Corporation,  and  Wang) have  licensed or

sold diagnostics to those other than their service customers.

                    

          evidence  that the  products are  in fact
          separate.    On  the  record  before  us,
          demand  for mere "access  to" MV/ADEX, in
          contrast  to demand  for licenses  to use
          MV/ADEX, is indistinguishable from demand
          for  repair  services.   Appellants  have
          introduced  no  evidence  that there  are
          customers  who  would  purchase  MV/ADEX-
          assisted  diagnostic services  separately
          from all other  repair services for  Data
          General equipment.

STI, 963 F.2d at 685 n.9.
   

                             -84-
                              84

Viewed  in  a light  most  favorable to  Grumman,  the record

reveals a  genuine dispute  as to whether  ADEX software  and

support services  for DG computers are  distinct products for

the  purposes of  a tying analysis.56   Consequently,  we may

proceed  to   determine   whether  Grumman   has   introduced

sufficient  proof that  DG has  conditioned the  licensing of

ADEX  to  CMOs on  the agreement  of  these customers  not to

purchase service from TPMs.

               b.  Tying Arrangement
                                    

          Proof  of  a tying  arrangement  generally requires

evidence that  the supplier's  sale of the  tying product  is

conditioned upon  the unwilling purchase of  the tied product

from the supplier or an unwilling promise not to purchase the

tied product from  any other supplier.   See, e.g., Jefferson
                                                             

Parish, 466 U.S. at 12 ("[T]he essential characteristic of an
      

invalid  tying arrangement lies  in the seller's exploitation

of its control over the tying product to force the buyer into

the purchase of a tied product that the buyer either did  not

want at all, or might have preferred to purchase elsewhere on

different  terms.");  Wells  Real  Estate, 850  F.2d  at  814
                                         

("Tying  arrangements involve  the use  of leverage  over the

market for one product . . . to coerce purchases  of a second

product  . .  . .").   In  the absence  of an  explicit tying

                    

56.  Again, the  Fourth Circuit reached  a similar conclusion
for similar reasons.  See STI, 963 F.2d at 684-85.
                             

                             -85-
                              85

agreement,  conditioning  may   be  inferred  from   evidence

indicating  that  the  supplier  has  actually   coerced  the

purchase or  non-purchase of another product.   See Amerinet,
                                                             

Inc. v. Xerox  Corp., 972  F.2d 1483, 1500  (8th Cir.  1992),
                    

cert.  denied,  113 S.  Ct.  1048  (1993); Advanced  Computer
                                                             

Servs.,  Inc.  v.  MAI Sys.  Corp.,  845  F.  Supp. 356,  368
                                  

(E.D.Va. 1994) (citing John H. Shenefield & Irwin M. Stelzer,

The Antitrust Laws: A Primer 72 (1993) ("In the absence of an
                            

explicit agreement  requiring the purchase as  a condition of

the sale, courts  will accept  proof suggesting  any kind  of

coercion  by the seller  or unwillingness to  take the second

product by the buyer.")); see  also Tic-X-Press, Inc. v. Omni
                                                             

Promotions  Co., 815 F.2d 1407, 1418 (11th Cir. 1987) ("It is
               

well established that coercion  may be established by showing

that the facts and circumstances  surrounding the transaction

as a practical  matter forced the  buyer into purchasing  the

tied  product.").   In essence,  whether the  conditioning is

explicit  or  implicit,  we   will  not  consider  the  anti-

competitive effects of a tie to be unreasonable per se unless
                                                      

there  is evidence that the supplier of the tying product has

actually used its market power to impose the condition.

          Grumman points to  only one alleged negative  tying

arrangement,  asserting  that  DG's  Cooperative  Maintenance

Agreement  ("CMO  Agreement")   contains  an  explicit  tying

condition.  The  CMO Agreement indeed states that DG designed

                             -86-
                              86

the  CMO  program  for   "customers  who  perform  their  own

maintenance" and that one qualifying criterion for CMO status

is  that  the  customer  "[m]aintain[]  systems  which   were

purchased either for  itself or for  resale to its  customers

[as an official  DG distributor]."  And,  although the record

suggests  that  CMOs  may  still  purchase  DG  service  (and

presumably TPM  service) on  a "time and  materials" basis,57

CMOs  do not  enter  contracts with  either  DG or  TPMs  for

ongoing  support services.   DG  and Grumman both  agree that

CMOs  cannot allow TPMs to  use copies of  ADEX licensed by a

CMO.

          Grumman's allegation of an illegal tie cannot go to

a  jury  on  a  record so  sparse.    Before  turning to  the

principal flaw  in Grumman's case,  we note that  these facts

lend only  modest support to  the accusation  that CMOs  have

actually promised not to purchase support services from TPMs.

The  CMO Agreement  does  require that  participants maintain

their own  computers, but  nowhere does the  agreement define

self-maintenance  status   in  detail  or  elaborate  on  the

consequences to a CMO if it enters a  service contract with a

                    

57.  Frederick Raley,  Jr., a  DG official, testified  at his
deposition  that "self-maintaining" CMO customers would still
be able to use  DG service, except that  "they wouldn't be  a
contract  customer,  they  would  be  a  time  and  materials
customer."   This portion of Raley's  deposition was actually
placed in the  record by Grumman as part of  an exhibit to an
                                
affidavit  supporting Grumman's  opposition  to one  of  DG's
motions for summary judgment.

                             -87-
                              87

TPM.   In fact, as we  have noted, there is  some evidence in

the  record that CMOs  are free to  purchase support services

from others without adverse consequences, at least on a "time

and materials" basis.

          More  importantly, there  is virtually  no evidence

that  any CMO  has  unwillingly chosen  to  maintain its  own
                               

computers.  Although there is some evidence that DG officials

designed  the CMO  program  in part  to  prevent loss  of  DG

revenue to TPMs, there  is no evidence that consumers  became

CMO customers for any reason other than their belief that the

CMO program was a "product" superior to TPM service.  Indeed,

while Grumman has argued tirelessly that DG service customers
                                                   

are  forced  to  swallow   overpriced  and  inferior  support

service, Grumman  has offered no evidence  that CMO customers
                                                   

are similarly disadvantaged.  There is not a single affidavit

in the  record  in  which a  CMO  customer  expresses  either

displeasure with the CMO program or an  unfulfilled desire to

switch to a  TPM.58  Nor is there any  other type of evidence

that  DG equipment  owners capable  of maintaining  their own

equipment  would be more  satisfied as TPM  customers than as

CMO  customers.   Consequently,  the evidence  in the  record

                    

58.  Likewise, there is no evidence in the record that former
TPM customers have reluctantly terminated  their relationship
with Grumman in  order to  participate in the  CMO program.  
Cf. Kodak, 112 S.  Ct. at 2081 (noting that  record contained
         
evidence that "consumers have  switched to Kodak service even
though they preferred [TPM] service").

                             -88-
                              88

would  not allow  a  reasonable jury  to  find that  the  CMO

program is "an inferior or overpriced product," Amerinet, 972
                                                        

F.2d at 1501, protected from competition by DG's exploitation

of its control over ADEX.

          In  conclusion, Grumman's allegation  of a positive

tie between ADEX service and DG support services fails in the

absence  of proof that these  services are truly two distinct

products.   Grumman's  allegation of  a negative  tie between

ADEX software and non-purchase  of TPM support services fails

in the absence of  proof that DG coerced consumers  to accept

such an arrangement.  Accordingly, the district court did not

err in granting DG's motion for summary judgment on Grumman's

tying counterclaim.

          2.  Monopolization
                            

          In  addition to  alleging  unlawful tying,  Grumman

accused  DG  of willfully  maintaining  its  monopoly in  the

aftermarket  for  service of  DG  computers  in violation  of

Section 2 of the Sherman Act, 15 U.S.C.   2, which  prohibits

the  monopolization  of "any  part of  the trade  or commerce

among  the several States."   To survive  summary judgment on

its  willful maintenance  claim, Grumman  must demonstrate  a

genuine dispute about the existence of two elements: (1) DG's

possession  of monopoly  power  in the  market59 for  support

                    

59.  DG does not seriously  dispute Grumman's contention that
the  aftermarket for  service of  DG computers  comprises the
"relevant  market"  for   purposes  of  antitrust   analysis.

                             -89-
                              89

services of DG  computers; and (2)  DG's maintenance of  that

power  through "exclusionary  conduct."   Town of  Concord v.
                                                          

Boston Edison Co., 915  F.2d 17, 21 (1st Cir.  1990) (Breyer,
                 

C.J.) (citing,  inter alia, United States  v. Grinnell Corp.,
                                                            

384  U.S. 563,  570-71 (1966)),  cert. denied,  499 U.S.  931
                                             

(1991).  The district court assumed the existence of monopoly

power  but  granted  summary  judgment on  the  grounds  that

Grumman  had not  demonstrated the  need for  a trial  on the

element of exclusionary conduct.  We follow suit.60

          "Exclusionary  conduct"  is  defined as  "`conduct,

other than competition on the merits or restraints reasonably

"necessary"  to competition  on the  merits,  that reasonably

appears  capable  of  making a  significant  contribution  to

creating or  maintaining monopoly power.'"   Town of Concord,
                                                            

915  F.2d at 21 (quoting  Barry Wright Corp.  v. ITT Grinnell
                                                             

Corp., 724 F.2d  227, 230 (1st Cir. 1983) (Breyer, J.), and 3
     

Phillip Areeda & Donald F. Turner, Antitrust Law   626, at 83
                                                

                    

Accordingly, and in view  of our disposition of this  case on
other grounds, we need not consider this issue.

60.  We note, however, that  the record does contain evidence
of DG's monopoly power in the assumed service aftermarket for
DG  computers.  In addition to DG's monopoly share (over 90%)
of the  service aftermarket, the record  contains evidence of
barriers  to   entry  (e.g.,  costs  to   TPMs  of  obtaining
diagnostics and other  service "tools"), market imperfections
(e.g.,  high information  costs for  computer  purchasers and
high  switching  costs for  DG  equipment  owners), and  more
importantly,  supracompetitive  service   prices  and   price
discrimination among DG service customers.

                             -90-
                              90

(1978)  (hereinafter  "Areeda  &  Turner")).    We  label  as
                                        

improper that conduct which harms the competitive process and
                                                         

not  conduct  which simply  harms  competitors.   Id.    That
                                                     

process is harmed when  conduct "obstructs the achievement of

competition's basic goals --  lower prices, better  products,

and more efficient production  methods."  Id. at 21-22.   Cf.
                                                             

Olympia Equip.  Leasing Co.  v. Western  Union Tel. Co.,  797
                                                       

F.2d  370,  375  (7th  Cir. 1986)  (describing  shift  in the

emphasis  of "antitrust policy .  . . from  the protection of

competition  as  a process  of rivalry  to the  protection of

competition  as a  means of promoting  economic efficiency"),

cert. denied, 480 U.S. 934 (1987).  In contrast, exclusionary
            

conduct does not include behavior which poses no unreasonable

threat to consumer  welfare but is merely  a manifestation of

healthy competition, an absence  of competition, or a natural

monopoly.  See,  e.g., United States  v. Grinnell Corp.,  384
                                                       

U.S. 563, 570-71 (1966) (holding that Section 2 punishes only

"willful  acquisition or  maintenance [of monopoly  power] as

distinguished from growth or  development as a consequence of

a superior product, business acumen, or historic accident").

          Grumman's   primary   contention   is   that   DG's

unilateral  refusal  to license  ADEX  to  anyone other  than

qualified    self-maintainers     constitutes    exclusionary

                             -91-
                              91

conduct.61    Grumman  also  attacks   as  exclusionary  DG's

refusal  to provide other service tools directly to TPMs.  We

first  review  the principles  governing  the  analysis of  a

monopolist's unilateral  refusal to  deal,  and then  discuss

whether a  unilateral refusal  to license a  copyrighted work

might  ever deserve to be condemned as exclusionary.  We hold

below that the  desire of an author to  be the exclusive user

of its  original work is a  presumptively legitimate business

justification   for  the  author's   refusal  to  license  to

competitors.  We hold further that  Grumman has not presented

sufficient proof to rebut  this presumption and thereby avert

summary  judgment.    In  particular, we  find  no  merit  in

Grumman's contention that DG acted in an exclusionary fashion

in discontinuing its liberal  policies allowing TPM access to

diagnostic software.  Finally, we conclude that no reasonable

jury could find that DG's restrictions on TPM access to other

service tools amount to exclusionary conduct.

               a.  Unilateral Refusals to Deal
                                              

          Because  a  monopolization claim  does  not require

proof of concerted activity, even the unilateral actions of a

monopolist  can  constitute  exclusionary conduct.    See  15
                                                         

                    

61.  Grumman also  seeks to portray the  alleged positive and
negative tying arrangements as exclusionary conduct violative
of Section  2.  We do  not consider this argument  because of
our  determination in  the  previous section  that DG's  ADEX
policies  cannot   properly  be  described   as  arrangements
conditioning  the sale of one product on the purchase or non-
purchase of another.

                             -92-
                              92

U.S.C.   2 (referring to "[e]very person who shall monopolize

. . . or combine or  conspire with any other person . .  . to
        

monopolize") (emphasis  added); Moore  v. Jas. H.  Matthews &
                                                             

Co.,  473 F.2d  328,  332  (9th  Cir. 1973)  (observing  that
   

"section 2 is not  limited to concerted activity").   Thus, a

monopolist's unilateral refusal to  deal with its competitors

(as long as  the refusal harms  the competitive process)  may

constitute prima facie  evidence of  exclusionary conduct  in

the context  of a Section 2 claim.  See  Kodak, 112 S. Ct. at
                                              

2091 n.32 (citing Aspen Skiing Co.  v. Aspen Highlands Skiing
                                                             

Corp.,  472  U.S. 585,  602-05  (1985)).    A monopolist  may
     

nevertheless  rebut  such  evidence by  establishing  a valid

business justification for  its conduct.   See Kodak, 112  S.
                                                    

Ct.  at 2091 n. 32  (suggesting that monopolist  may rebut an

inference of exclusionary conduct by establishing "legitimate

competitive reasons for the refusal"); Aspen Skiing, 472 U.S.
                                                   

at  608  (suggesting  that  sufficient evidence  of  harm  to

consumers  and  competitors triggers  further  inquiry as  to

whether  the monopolist  has "persuade[d]  the jury  that its

[harmful]  conduct  was  justified  by  [a]  normal  business

purpose").  In general, a  business justification is valid if

it  relates  directly or  indirectly  to  the enhancement  of

consumer welfare.   Thus,  pursuit of efficiency  and quality

control  might  be  legitimate  competitive  reasons  for  an

otherwise exclusionary  refusal to deal, while  the desire to

                             -93-
                              93

maintain  a  monopoly market  share  or thwart  the  entry of

competitors  would  not.   See  Kodak,  112  S.  Ct. at  2091
                                     

(discussing the validity and sufficiency of various  business

justifications); Aspen Skiing, 472 U.S. at 608-11 (same); see
                                                             

generally 7  Areeda &  Turner   1504,  at 377-83; 9  Areeda &
                                                             

Turner    1713, 1716-17,  at 148-61, 185-239.  In  essence, a
      

unilateral  refusal to  deal is  prima facie  exclusionary if

there is evidence of harm to the competitive process; a valid
                         

business  justification  requires  proof   of  countervailing

benefits to the competitive process. 
        

          Despite  the  theoretical  possibility, there  have

been relatively  few cases in  which a unilateral  refusal to

deal  has formed the basis  of a successful  Section 2 claim.

Several  of the cases commonly  cited for a  supposed duty to

deal  were actually  cases  of joint  conduct  in which  some

competitors joined to frustrate others.  See Associated Press
                                                             

v.  United  States,  326  U.S.  1  (1945); United  States  v.
                                                         

Terminal R.R. Ass'n,  224 U.S.  383 (1912).   Prior to  Aspen
                                                             

Skiing, the case that  probably came closest to  condemning a
      

true unilateral refusal to  deal was Otter Tail Power  Co. v.
                                                          

United  States,  410 U.S.  366  (1973),  which condemned  the
              

refusal  of  a  wholesale   power  supplier  either  to  sell

wholesale power to municipal systems or to "wheel power" when

Otter   Tail's   retail    franchises   expired   and   local

municipalities   sought  to   supplant  Otter   Tail's  local

                             -94-
                              94

distributors.  The case not only involved a capital-intensive

public  utility facility  -- which  could not  effectively be

duplicated and occupied a distinct separate market -- but the

Supreme  Court  laid  considerable  emphasis  on  "supported"

findings in the district court "that Otter Tail's refusals to

sell  at  wholesale  or  to  wheel  were  solely  to  prevent

municipal  power  systems   from  eroding  its   monopolistic

position."  410 U.S. at 378.

          In   Aspen   Skiing,   the   Court   criticized   a
                             

monopolist's unilateral  refusal to deal in  a very different

situation, casting serious doubt  on the proposition that the

Court has adopted any single  rule or formula for determining

when a unilateral refusal to deal is unlawful.  In that case,

an "all-Aspen" ski ticket -- valid at any mountain in Aspen -

-  had been  developed  and jointly  marketed when  the three

(later four)  ski areas  in Aspen  were owned by  independent

entities.  472  U.S. at 589.   Some  time after Aspen  Skiing

Company  ("Ski Co.") came into  control of three  of the four

ski areas, Ski Co. refused to continue a joint agreement with

Aspen Highlands Skiing Corp.  ("Highlands"), the owner of the

fourth  area.    Id.  at  592-93.    Although  there  was  no
                    

"essential facility"  involved, the  Court found that  it was

exclusionary  for Ski  Co.,  as a  monopolist,  to refuse  to

continue a presumably efficient "pattern of distribution that

                             -95-
                              95

had originated in a competitive market  and had persisted for

several years."  Id. at 603.
                    

          It is not entirely clear whether the Court in Aspen
                                                             

Skiing merely  intended to  create a category  of refusal-to-
      

deal cases different from  the essential facilities  category

or whether  the Court was  inviting the  application of  more

general   principles  of  antitrust  analysis  to  unilateral

refusals  to deal.  We  follow the parties'  lead in assuming

that Grumman  need not tailor  its argument to  a preexisting

"category" of unilateral refusals to deal.

               b.  Unilateral Refusals to License
                                                 

          DG attempts to  undermine Grumman's  monopolization

claim  by proposing  a powerful  irrebuttable presumption:  a

unilateral  refusal   to  license   a  copyright   can  never

constitute exclusionary conduct.  We agree that some  type of

presumption is in order, but reach that conclusion only after

an exhaustive  inquiry touching  on the general  character of

presumptions, the  role of  market analysis in  the copyright

context,  existing  responses  to  the  tension  between  the

antitrust  and patent laws, the nature of the rights extended

by  the  copyright  laws,  and  our  duty  to  harmonize  two

conflicting statutes.

               (1)  The Propriety of a Presumption
                                                  

          We  begin  our   analysis  with  two  observations.

First, DG's rule of  law could be characterized as  either an

                             -96-
                              96

empirical assumption or a policy preference.  For example, if

we were convinced that refusals to license a copyright always

have a  net positive  effect on  the competitive  process, we

might adopt a presumption to this effect in order to preclude

wasteful litigation about a  known fact.  On the  other hand,

if we  were  convinced  that  the rights  enumerated  in  the

Copyright    Act    should   take    precedence    over   the

responsibilities set forth in  the Sherman Act, regardless of

the realities of the market, we might adopt a blanket rule of

preference.     DG's  argument  contains   elements  of  both

archetypal categories of presumptions.  

          Second,  we  note   that  the  phrase  "competitive

process" may need some refinement in order to evaluate either

an empirical  assumption or  a policy  presumption concerning

the  desirability  of   unilateral  refusals  to  license   a

copyright.    Antitrust law  generally  seeks  to punish  and

prevent harm to consumers in particular markets, with a focus

on relatively  specific time  periods.  See,  e.g., Jefferson
                                                             

Parish,  466 U.S. at 18  (holding that "any  inquiry into the
      

validity of a tying  arrangement must focus on the  market or

markets in which the two products are sold, for that is where

the  anticompetitive  forcing has  its  impact").   Thus,  in

determining whether conduct is exclusionary in the context of

a monopolization  claim, we ordinarily  focus on harm  to the

competitive process  in the relevant market  and time period.

                             -97-
                              97

See generally 3 Areeda & Turner    517-28, at 346-88,    533-
                               

36,  at 406-431.   Confining the competitive  process in this

way  assists courts  in  deciding particular  disputes  based

primarily  on  case-specific adjudicative  facts  rather than

generally-applicable "legislative" facts or assumptions.  The

use   and  protection   of   copyrights   also  affects   the

"competitive process," but it may not be appropriate to judge

the effect of the use  of a copyright by looking only  at one

market or one time period.

          We  now consider  what appears  to be  an empirical

proclamation  from   DG:    "[T]he  refusal   to  make  one's

innovation  available  to rivals  .  .  . is  pro-competitive

conduct."62    As support,  DG  cites Grinnell,  384  U.S. at
                                              

570-71, in which  the Court held that  willful maintenance of

monopoly  does  not  include  "growth  or  development  as  a

consequence   of  a  superior  product."     It  is  not  the

superiority of  a  work that  allows  the author  to  exclude

others, however,  but rather the limited  monopoly granted by

copyright law.   Moreover, one reason  why the Copyright  Act

fosters  investment and innovation  is that it  may allow the

author to earn monopoly profits by licensing the copyright to

others or reserving the  copyright for the author's exclusive

                    

62.  Elsewhere in its brief, DG adds  that DG's "refus[al] to
allow Grumman to  use MV/ADEX is  . . .  the precise  conduct
that  the  antitrust  and  copyright  laws  are  designed  to
encourage."

                             -98-
                              98

use.  See Sony Corp. of Am. v. Universal  City Studios, Inc.,
                                                            

464  U.S.  417,  429  (1984)  (explaining  that  the  limited

copyright  monopoly "is  intended  to motivate  the  creative

activity  of  authors and  inventors  by the  provision  of a

special  reward").  Thus, at least in a particular market and

for a particular period of time, the Copyright  Act tolerates

behavior  that may harm both  consumers and competitors.  Cf.
                                                             

SCM Corp. v. Xerox  Corp., 645 F.2d 1195, 1203 (2d Cir. 1981)
                         

("[T]he primary  purpose of the antitrust laws -- to preserve

competition --  can be  frustrated, albeit temporarily,  by a

holder's exercise of the patent's inherent exclusionary power

during its term."), cert. denied, 455 U.S. 1016 (1982).
                                

          DG does not in fact argue that consumers are better

off in  the short term  because of  the inability of  TPMs to

license ADEX.   Instead, DG suggests  that allowing copyright

owners  to exclude others from the use of their works creates

incentives which ultimately work  to the benefit of consumers

in the DG service  aftermarket as well  as to the benefit  of

consumers generally.  In other words, DG seeks to justify any

immediate  harm to  consumers by  pointing to  countervailing

long-term  benefits.   Certainly, a  monopolist's refusal  to

license others to use a commercially successful patented idea
                                                             

is likely to have more profound anti-competitive consequences

than  a refusal to allow others  to duplicate the copyrighted

expression of an  unpatented idea (although  such differences
          

                             -99-
                              99

may  become  less   pronounced  if   copyright  law   becomes

increasingly  protective  of  intellectual  property  such as

computer  software).   But  by  no  means is  a  monopolist's

refusal  to  license a  copyright  entirely "pro-competitive"

within the  ordinary economic  framework of the  Sherman Act.

Accordingly, it  may be  inappropriate to adopt  an empirical

assumption  that  simply  ignores  harm  to  the  competitive

process  caused  by  a  monopolist's  unilateral  refusal  to

license a copyright.  Even if it is  clear that exclusive use

of a  copyright can have  anti-competitive consequences, some

type  of presumption  may  nevertheless be  appropriate as  a

matter of either antitrust law or copyright law.

               (2)  Antitrust Law and the Accommodation of   
                                                          
                    Patent Rights
                                 

          Antitrust  law is  somewhat instructive.   Although

creation and  protection of original works  of authorship may

be a  national pastime, the  Sherman Act does  not explicitly

exempt  such  activity  from antitrust  scrutiny  and  courts

should  be wary of creating implied exemptions.  See Square D
                                                             

Co. v.  Niagara Frontier Tariff  Bureau, Inc., 476  U.S. 409,
                                             

421  (1986)  ("[E]xemptions  from  the  antitrust  laws   are

strictly construed and  strongly disfavored."); cf.  Flood v.
                                                          

Kuhn,  407 U.S.  258  (1972) (holding  that the  longstanding
    

judicially  created exemption  of professional  baseball from

the  Sherman  Act is  an  established  "aberration" in  which

Congress has  acquiesced).   The Supreme Court  has suggested

                            -100-
                             100

that an  otherwise reasonable  yet anti-competitive use  of a

copyright should not  "be deemed  a per se  violation of  the
                                          

Sherman Act,"  Broadcast  Music, Inc. v. CBS, Inc.,  441 U.S.
                                                  

1,  19 (1979),  but a monopolistic  refusal to  license might

still violate the rule of reason, see Rural Tel. Serv. Co. v.
                                                          

Feist Publications,  Inc., 957  F.2d 765, 767-69  (10th Cir.)
                         

(analyzing reasonableness of monopolist's  unilateral refusal

to  license  copyrighted telephone  listings  to  a competing

distributor  of telephone directories),  cert. denied, 113 S.
                                                     

Ct. 490 (1992).63   Should an antitrust plaintiff  be allowed

                    

63.  It is  in  any event  well  settled that  concerted  and
contractual behavior that threatens competition is not immune
from  antitrust  inquiry  simply  because   it  involves  the
exercise of copyright privileges.   See, e.g., Kodak, 112  S.
                                                    
Ct. at  2089 n.29 ("The Court has  held many times that power
gained  through some  natural and  legal advantage such  as a
patent,  copyright,  or  business  acumen can  give  rise  to
liability if `a seller exploits his  dominant position in one
market to expand his empire into the next.'") (quoting Times-
                                                             
Picayune Publishing Co.  v. United States, 345 U.S.  594, 611
                                         
(1953) (tying  case)); United  States v. Paramount  Pictures,
                                                             
Inc.,  334  U.S. 131,  143  (1948)  (holding that  horizontal
    
conspiracy to engage in price-fixing in copyright licenses is
illegal per se);  id. at 159  (holding that block-booking  of
                     
motion  pictures  --  "a  refusal  to  license  one  or  more
copyrights  unless another  copyright is  accepted" --  is an
illegal  tying arrangement);  Straus v.  American Publishers'
                                                             
Ass'n, 231 U.S.  222, 234  (1913) ("No more  than the  patent
     
statute   was  the  copyright   act  intended   to  authorize
agreements in unlawful restraint of trade . . . ."); Digidyne
                                                             
Corp.  v. Data General Corp.,  734 F.2d 1336  (9th Cir. 1984)
                            
(affirming   finding  of  illegal   tie  between  copyrighted
software and  computer hardware), cert. denied,  473 U.S. 908
                                              
(1985); cf.  Miller Insituform, Inc. v. Insituform of N. Am.,
                                                             
Inc.,  830 F.2d 606, 608-09 & n.4 (6th Cir. 1987) (describing
    
ways in which patent holder may  violate the antitrust laws),
cert.  denied,  484  U.S.   1064  (1988);  United  States  v.
                                                         
Westinghouse  Elec. Corp.,  648  F.2d 642,  646-47 (9th  Cir.
                         
1981) (same).

                            -101-
                             101

to demonstrate the anti-competitive effects of a monopolist's

unilateral refusal to  grant a copyright license?   Would the

monopolist then  have to  justify its  refusal to  license by

introducing evidence  that the  protection  of the  copyright

laws  enabled the  author  to create  a  work which  advances

consumer welfare?

          The  courts  appear  to   have  partly  settled  an

analogous conflict between the  patent laws and the antitrust

laws,  treating the  former  as creating  an implied  limited

exception  to the latter.   In Simpson v.  Union Oil Co., 377
                                                        

U.S.  13, 24  (1964), the  Supreme  Court stated  that "[t]he

patent laws which give a  17-year monopoly on `making, using,

or  selling the  invention'  are  in  pari materia  with  the
                                                  

antitrust laws  and modify  them pro  tanto."   Similarly, we
                                           

have suggested  that  the  exercise  of patent  rights  is  a

"legitimate means" by  which a firm may maintain its monopoly

power.  Barry  Wright, 724 F.2d  at 230.   Other courts  have
                     

specifically held that  a monopolist's unilateral  refusal to

license  a  patent  is  ordinarily  not  properly  viewed  as

exclusionary conduct.  See Miller Insituform, 830 F.2d at 609
                                            

("A patent  holder who lawfully  acquires a patent  cannot be

held  liable   under  Section  2  of  the   Sherman  Act  for

maintaining  the  monopoly  power  he  lawfully  acquired  by

refusing to  license the patent  to others.");  Westinghouse,
                                                            

648  F.2d  at 647  (finding  no  antitrust violation  because

                            -102-
                             102

"Westinghouse  has done no more  than to license  some of its

patents and refuse  to license others"); SCM Corp.,  645 F.2d
                                                  

at  1206 (holding  that  "where a  patent  has been  lawfully

acquired,  subsequent  conduct permissible  under  the patent

laws cannot trigger any liability under the antitrust laws");

see also  3 Areeda  & Turner    704, at  114 ("The  patent is
                            

itself a  government grant  of monopoly  and is therefore  an

exception  to usual  antitrust rules.").   This  exception is

inoperable  if the  patent  was unlawfully  "acquired."   SCM
                                                             

Corp.,  645 F.2d  at 1208-09  (analyzing legality  of Xerox's
     

acquisition  of plain-paper  copier patent); see  generally 3
                                                           

Areeda & Turner     705-707, at 117-45  (discussing effect of
               

patent  acquisition, internal  development  of  patents,  and

improprieties  in  patent  procurement  on  applicability  of

antitrust laws).

          The  "patent  exception"  is  largely  a  means  of

resolving  conflicting rights  and responsibilities,  i.e., a

policy presumption.   See, e.g., Miller  Insituform, 830 F.2d
                                                   

at  609  (declaring summarily  that  "[t]here  is no  adverse
                                                 

effect  on competition  since, as  a patent  monopolist, [the
                             

patent holder] had [the] exclusive right to manufacture, use,

and sell  his invention.")  (emphasis  added).   At the  same

time, the  exception is  grounded in an  empirical assumption

that  exposing patent  activity  to wider  antitrust scrutiny

would weaken  the incentives  underlying  the patent  system,

                            -103-
                             103

thereby  depriving  consumers of  beneficial products.   See,
                                                            

e.g., SCM Corp., 645 F.2d at 1209 (holding that imposition of
               

antitrust liability  for an arguably  unreasonable refusal to

license  a lawfully  acquired patent "would  severely trample

upon  the incentives  provided by  our patent  laws and  thus

undermine the entire patent system").

               (3)  Copyright Law
                                 

          Copyright  law  provides further  guidance.     The

Copyright  Act  expressly grants  to  a  copyright owner  the

exclusive right to distribute the protected work by "transfer

of ownership, or by rental, lease,  or lending."  17 U.S.C.  

106.   Consequently, "[t]he owner  of the copyright,  if [it]

pleases, may  refrain from  vending or licensing  and content

[itself] with  simply exercising the right  to exclude others

from using [its]  property."   Fox Film Corp.  v. Doyal,  286
                                                       

U.S. 123, 127  (1932).  See also  Stewart v. Abend,  495 U.S.
                                                  

207,  229  (1990).   We may  also venture  to infer  that, in

passing the Copyright Act,  Congress itself made an empirical

assumption that allowing copyright holders to collect license

fees  and exclude  others from  using  their works  creates a

system of  incentives that  promotes consumer welfare  in the

long  term  by  encouraging  investment in  the  creation  of

desirable artistic  and functional works of  expression.  See
                                                             

Feist  Publications, Inc. v. Rural Tel. Serv. Co., 111 S. Ct.
                                                 

1282,  1290 (1991) ("The primary  objective of a copyright is

                            -104-
                             104

not to reward  the labor  of authors, but  `[t]o promote  the

Progress   of  Science  and   useful  Arts.'")  (brackets  in

original)  (quoting U.S.  Const. art.  I.    8, cl.  8); Sony
                                                             

Corp., 464 U.S.  at 429 (discussing  goals and incentives  of
     

copyright  protection);  Twentieth  Century  Music  Corp.  v.
                                                         

Aiken, 422 U.S. 151, 156 (1975) ("The immediate effect of our
     

copyright  law is to secure  a fair return  for an `author's'

creative  labor.  But the ultimate aim is, by this incentive,

to  stimulate  artistic  creativity  for  the general  public

good.").  We cannot require antitrust defendants to prove and

reprove the  merits of  this legislative assumption  in every

case  where a  refusal to  license a  copyrighted work  comes

under  attack.    Nevertheless,   although  "nothing  in  the

copyright statutes would prevent  an author from hoarding all
                  

of  his works during the term of the copyright," Stewart, 495
                                                        

U.S.  at 228-29 (emphasis added),  the Copyright Act does not

explicitly  purport to limit  the scope  of the  Sherman Act.

And, if the Copyright Act is silent on the subject generally,

the silence is particularly acute in cases where a monopolist

harms  consumers in  the  monopolized market  by refusing  to

license a copyrighted work to competitors.

          We acknowledge that Congress has  not been entirely

silent on the relationship between antitrust and intellectual

property laws.  Congress  amended the patent laws in  1988 to

provide that "[n]o patent  owner otherwise entitled to relief

                            -105-
                             105

for infringement . . . of a patent shall be  denied relief or

deemed  guilty of misuse  or illegal extension  of the patent

right by reason of [the  patent owner's] refus[al] to license

or use any rights to the patent."  35 U.S.C.   271(d) (1988).

Section  271(d) clearly  prevents an  infringer from  using a

patent misuse defense when  the patent owner has unilaterally

refused a license, and may even herald the prohibition of all

antitrust claims  and counterclaims premised on  a refusal to

license  a patent.    See Richard  Calkins,  Patent Law:  The
                                                             

Impact  of  the  1988 Patent  Misuse  Reform  Act and  Noerr-
                                                             

Pennington   Doctrine  on   Misuse  Defenses   and  Antitrust
                                                             

Counterclaims,   38   Drake   L.   Rev.   192-97   (1988-89).
             

Nevertheless,   while   Section  271(d)   is   indicative  of

congressional  "policy"  on the  need  for  antitrust law  to

accommodate  intellectual  property  law,  Congress  did  not

similarly amend the Copyright Act.

               (4)  Harmonizing the Sherman Act and the      
                                                       
                    Copyright Act
                                 

          Since neither the Sherman Act nor the Copyright Act

works a  partial  repeal  of  the other,  and  since  implied

repeals  are disfavored, e.g., Watt  v. Alaska, 451 U.S. 259,
                                              

267 (1981), we  must harmonize the two  as best we  can, id.,
                                                            

mindful of the legislative and judicial approaches to similar

conflicts created by the patent laws.  We must not lose sight

of the need to preserve the economic incentives fueled by the

Copyright Act, but neither may  we ignore the tension between

                            -106-
                             106

the two very different policies embodied in the Copyright Act

and  the Sherman Act, both designed ultimately to improve the

welfare of consumers in  our free market system.   Drawing on

our discussion above, we hold that while exclusionary conduct

can include  a monopolist's  unilateral refusal to  license a

copyright,  an author's desire to exclude  others from use of

its  copyrighted  work  is  a  presumptively  valid  business

justification for any immediate harm to consumers.64  

               c.  DG's Refusal to License ADEX to non-CMOs 
                                                           

          Having arrived at  the applicable legal  standards,

we may resolve Grumman's principal allegation of exclusionary

conduct.   Although there  may be  a genuine  factual dispute

about  the effect on DG  equipment owners of  DG's refusal to

license  ADEX to  TPMs, DG's  desire to  exercise its  rights

under  the Copyright  Act is  a presumptively  valid business

justification. 

          Apparently   sensing  the  uphill   nature  of  its

allegation of  an exclusionary  refusal  to license,  Grumman

seeks to overcome any  obstacles primarily by  characterizing

DG's  licensing  policies  as  a   monopolist's  exclusionary

withdrawal  of  assistance  within  the  framework  of  Aspen
                                                             

                    

64.  Wary of  undermining the Sherman Act, however, we do not
hold  that  an  antitrust  plaintiff  can  never  rebut  this
presumption, for there  may be rare  cases in which  imposing
antitrust liability  is unlikely to frustrate  the objectives
of the Copyright Act.

                            -107-
                             107

Skiing.   Citing  Aspen  Skiing, Grumman  contends that  DG's
                               

refusal to license ADEX to TPMs, in light of the fact that DG

previously   allowed  TPMs   to   use  DG   diagnostics,   is

exclusionary  conduct because "[a] monopolist that has helped

a  market  develop  may  not  withdraw  its  support  without

legitimate business justifications."

          Assuming  that  such  a   claim  can  overcome  the

presumption that a refusal to license is not exclusionary, we

nevertheless hold that Aspen Skiing cannot apply to the facts
                                   

of this case.  The reasoning of Aspen Skiing has little to do
                                            

with the fact that defendant Ski Co. withdrew assistance upon

which competitors  may have relied when  entering the market.

Rather, the decision turns on a comparison of the behavior of

firms in a competitive  market (the Aspen ski market)  with a

monopolist's  behavior once  competition has  been curtailed.

The  Court  noted that  the  rich  soil  of  competition  had

produced  the   all-mountain  ticket  in   Aspen  and   other

multimountain  areas, justifying  an  "infer[ence] that  such

tickets satisfy consumer demand in free competitive markets."

472 U.S.  at 603.  See  also Olympia Equip., 797  F.2d at 377
                                           

(suggesting  that the  facts  in Aspen  Skiing indicate  that
                                              

"competition  required some cooperation among competitors" in

the Aspen ski market).   Ski Co.'s decision to  eliminate the

ticket in later years was  a sign that the weeds  of monopoly

had begun to take hold, to the possible detriment of consumer

                            -108-
                             108

welfare.   Aspen  Skiing, 472  U.S. at  604.   Finally, after
                        

canvassing evidence of consumer preferences concerning skiing

options  at Aspen,  the Court  concluded that  Ski Co.'s  new

policies did in  fact harm consumers.   Id. at  605-607.   In
                                           

short, instead of prescribing  a categorical approach,  Aspen
                                                             

Skiing  ultimately calls  for an  inquiry that  is relatively
      

routine   in  antitrust   analysis:   namely,   whether   the

monopolist's  actions  unjustifiably  harm   the  competitive

process  by  frustrating  consumer preferences  and  erecting

barriers to competition.  Cf. Olympia Equip., 797 F.2d at 379
                                            

("If [Aspen Skiing] stands for any principle that goes beyond
                  

its  unusual facts, it is that  a monopolist may be guilty of

monopolization if  it refuses to cooperate  with a competitor

in circumstances  where some cooperation is  indispensable to

effective competition.").

          Grumman  attempts to analogize  this case  to Aspen
                                                             

Skiing  by focusing on the fact that DG once encouraged firms
      

to  enter  the DG  service  aftermarket  by allowing  liberal

access  to service  tools,  but  no  longer  does  so.    The

analytical framework of Aspen Skiing cannot function in these
                                    

circumstances, however,  because we  are unable to  view DG's

market  practices  in  both  competitive  and  noncompetitive

conditions.  While TPMs  have made inroads in the  market for

service of DG computers,  DG has always been a  monopolist in

that market, and competitive conditions have never prevailed.

                            -109-
                             109

Therefore, it would not  be "appropriate to infer"  from DG's

change of  heart that  its former policies  "satisfy consumer

demand in free competitive markets."   Aspen Skiing, 472 U.S.
                                                   

at 603.

          Nor does  it appear that  Grumman would be  able at

trial to overcome the presumption on any other theory.  There

is  no evidence that DG  acquired its ADEX  copyrights in any

unlawful  manner;  indeed,   the  record  suggests  that   DG

developed all its software internally.  Cf. 3 Areeda & Turner
                                                             

   706,  at  127-28  (arguing  that  although  an  internally

developed  patent may be as exclusionary as one acquired from

outside a  firm, labelling  the former as  exclusionary would

"discourage  progressiveness  by monopolists").    And, while

there is evidence that DG knew that developing a "proprietary

position" in  the area of  diagnostic software would  help to

maintain its monopoly  in the aftermarket  for service of  DG

computers, there is also evidence that DG set out to create a

state-of-the-art  diagnostic that  would help to  improve the

quality of DG service.   Cf. id.   706, at 128-29 (suggesting
                                

that  "nearly all commercial  research rests on  a mixture of

motivations" and that a search for an overriding "antisocial"

motivation  would  be unilluminating).    In  fact, there  is

clearly some evidence  that ADEX is a  significant benefit to

owners of DG's MV computers.   ADEX is a better  product than

any  other  diagnostic for  MV computers.    The use  of ADEX

                            -110-
                             110

appears to have increased the efficiency and reduced the cost

of  service  because  technicians  can  locate problems  more

quickly  and,  through  the  use of  the  software's  "remote

assistance" capability, can  arrive at customer  sites having

determined  ahead   of  time   what  replacement  parts   are

necessary.   In addition to  the possibility of  lower prices

occasioned by such gains in efficiency, ADEX also promises to

lower prices  through gains  in effectiveness.   For example,

customers may  save the cost of  replacing expensive hardware

components because the use of advanced diagnostics  increases

the  possibility that  technicians can  locate a  problem and

repair the component.

          d.  DG's Other Restrictive Policies
                                             

          Grumman's other allegations of exclusionary conduct

are equally devoid of merit and require no extended analysis.

It  is essentially undisputed that  DG will not provide spare

parts,  depot repair services,  certain documentation, change

order kits, or schematics to TPMs.  But there is no  evidence

of any resulting harm  to DG equipment owners.  DG makes most

of  these  items  available  directly  to  equipment  owners.

Equipment owners "may  purchase . . .  depot repair services,

rev-ups [change  order kits],  and spare parts  directly from

DG, regardless of whether their computers are serviced by DG,

TPMs, or themselves."   Grumman II, 761 F. Supp.  at 189.  We
                                  

cannot presume that elimination  of an intermediate seller of

                            -111-
                             111

such items  harms consumers; indeed, consumers  are likely to

benefit by not having  to accept TPMs' mark-up of  DG prices.

Further,  a direct sales policy does not act as a significant

barrier to market entry  by competitors offering lower prices

for  higher quality  support services.   TPM  technicians may

identify broken parts for the customer to send to DG's repair

depot,  use the  change order  kits to  upgrade  a customer's

computer, and  install spare  parts the customer  has ordered

from DG.

          Neither  equipment owners  nor  TPMs  may  purchase

schematics  (blueprints  of  equipment  that   often  contain

manufacturing  secrets),  but   Grumman  has  not  introduced

sufficient evidence that this policy constitutes exclusionary

conduct.   Grumman's theory  below was  that DG's  refusal to

sell  schematics to  TPMs prevented  TPMs from  acquiring the

information   necessary   to   develop    fully   competitive

substitutes  for  ADEX.   Even  a  monopolist, however,  "may

normally keep  its innovations secret from its rivals as long

as it wishes."   Berkey Photo, Inc. v. Eastman Kodak Co., 603
                                                        

F.2d 263, 281  (2d Cir.  1979), cert. denied,  444 U.S.  1093
                                            

(1980).  DG's policy  might be exclusionary if DG  had sought

to  alter  its   equipment  (and  therefore  the   schematics

describing that equipment) in order to  prevent technological

advances by TPMs.  But, as the district court noted, "Grumman

.  . . makes no allegations that  DG has in fact attempted to

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subvert  competitors'  efforts   to  develop  and   implement

competing diagnostics."  Grumman II, 761 F. Supp. at 191.
                                   

          In  conclusion, Grumman  has not  produced evidence

from  which a jury could find that DG engaged in exclusionary

conduct  by unilaterally  refusing  to license  ADEX or  sell

schematics to  TPMs, or by  only selling other  service tools

directly to equipment  owners.  Therefore, there was no error

in  the  district  court's   entry  of  summary  judgment  on

Grumman's monopolization claim.

                             IV.
                                

                          CONCLUSION
                                    

          For the foregoing reasons,  we affirm the  district

court in every respect  save for its failure to  instruct the

jury on its duty to consider Grumman's plea for apportionment

of Grumman's  nonduplicative profits.65   We remand  the case

to  the district court for the sole purpose of resolving that

issue.

          So ordered.
                     

                    

65.  We have considered all of Grumman's other arguments, and
find none of sufficient merit to alter our conclusions.

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