Case: 23-1795 Document: 49 Page: 1 Filed: 01/03/2024
United States Court of Appeals
for the Federal Circuit
______________________
DEXCOM, INC.,
Plaintiff-Appellant
v.
ABBOTT DIABETES CARE, INC., ABBOTT
DIABETES CARE SALES CORPORATION,
Defendants-Appellees
______________________
2023-1795
______________________
Appeal from the United States District Court for the
District of Delaware in Nos. 1:21-cv-01699-KAJ, 1:22-cv-
00605-KAJ, Circuit Judge Kent A. Jordan.
______________________
Decided: January 3, 2024
______________________
WILLIAM ADAMS, Quinn Emanuel Urquhart & Sullivan,
LLP, New York, NY, argued for plaintiff-appellant. Also
represented by DAVID LEON BILSKER, San Francisco, CA;
NATHAN HAMSTRA, Chicago, IL; ALEXANDER HALE LOOMIS,
Boston, MA; VALERIE ANNE LOZANO, I, Los Angeles, CA;
JOHN W. SHAW, Shaw Keller LLP, Wilmington, DE.
JASON M. WILCOX, Kirkland & Ellis LLP, Washington,
DC, argued for defendants-appellees. Also represented by
WILLIAM H. BURGESS, JOHN C. O'QUINN; AMANDA J. HOLLIS,
Case: 23-1795 Document: 49 Page: 2 Filed: 01/03/2024
2 DEXCOM, INC. v. ABBOTT DIABETES CARE, INC.
Chicago, IL; BENJAMIN ADAM LASKY, ASHLEY ROSS, New
York, NY, ELLISEN SHELTON TURNER, Los Angeles, CA.
______________________
Before DYK, HUGHES, and STOLL, Circuit Judges.
STOLL, Circuit Judge.
This is an interlocutory appeal from a consolidated case
between Abbott Diabetes Care, Inc. and Abbott Diabetes
Care Sales Corp. (collectively, “Abbott”) and DexCom, Inc.
in the United States District Court for the District of Dela-
ware. After DexCom sued Abbott for infringing its patents,
Abbott petitioned for inter partes review of the asserted pa-
tents before the Patent Trial and Appeal Board. DexCom
moved for a preliminary injunction to enjoin Abbott from
proceeding with the inter partes review proceedings based
on a forum selection clause in a settlement and license
agreement between the parties. DexCom appeals the dis-
trict court’s denial of the preliminary injunction. Because
the district court did not abuse its discretion in denying the
preliminary injunction, we affirm. 1
1 After oral argument, DexCom moved to voluntarily
dismiss its appeal under Rule 42(b)(2) of the Federal Rules
of Appellate Procedure because it contends an injunction is
“no longer necessary” in light of the Patent Trial and Ap-
peal Board’s final written decisions in the inter partes re-
views at issue. Pl.-Appellant’s Mot. Voluntary Dismissal,
ECF No. 46 at 1. Abbott opposes, contending that the par-
ties continue to dispute whether Abbott breached the set-
tlement and license agreement by filing its IPRs. See ECF
No. 47.
We deny the motion. DexCom, as the party asserting
mootness, bears the burden of demonstrating that
(1) “there is no reasonable expectation that the alleged vi-
olation will recur, and (2) interim relief or events have
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DEXCOM, INC. v. ABBOTT DIABETES CARE, INC. 3
BACKGROUND
DexCom and Abbott are competing manufacturers of
continuous glucose monitoring systems. In 2014, after
years of patent litigation, DexCom and Abbott entered into
a settlement and license agreement (Agreement). The
Agreement included (1) terms for a cross-license for certain
patents, J.A. 340 § C; (2) a mutual covenant not to sue dur-
ing a Covenant Period, J.A. 340–45 § D; (3) a mutual cove-
nant not to Challenge DexCom’s or Abbott’s patents during
the Covenant Period, J.A. 345–46 § F; and (4) a forum se-
lection clause identifying the U.S. District Court for the
District of Delaware as the exclusive jurisdiction “over any
dispute arising from or under or relating to this Agree-
ment, to the extent permitted by law,” J.A. 353 ¶ J.4. It
defined Challenge to mean:
with respect to any Party’s patents or patent appli-
cations, directly or indirectly, (a) to assert in any
court or other competent governmental authority
that such patents or patent applications are invalid
completely and irrevocably eradicated the effects of the al-
leged violation.” Los Angeles Cnty. v. Davis, 440 U.S. 625,
631 (1979) (cleaned up); see also Sumecht NA, Inc.
v. United States, 923 F.3d 1340, 1345 n.6 (Fed. Cir. 2019)
(same). DexCom fails to meet this burden because the
Board’s final written decisions do not “completely and ir-
revocably eradicate[]” the potential for DexCom to chal-
lenge Abbott’s ability to file and participate in inter partes
reviews in the future. Davis, 440 U.S. at 631. Indeed, the
parties continue to dispute whether the IPRs were barred
under the Agreement. For at least these reasons, it is ap-
propriate to deny the motion to dismiss. See, e.g., In re
Nexium Antitrust Litig., 778 F.3d 1, 1–2 (1st Cir. 2015)
(court’s investment in time, existence of draft opinion, and
parties’ continued disagreement all support denial of vol-
untary motion to dismiss following oral argument).
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4 DEXCOM, INC. v. ABBOTT DIABETES CARE, INC.
or unenforceable, (b) to seek in any court or other
competent governmental authority to narrow or
change the scope of such patents or patent applica-
tions, (c) to seek, request, or otherwise take any ac-
tion that results, or is reasonably expected to result
in the declaration, initiation or continuation of a
reexamination, interference or derivation proceed-
ing, opposition, post-grant review or inter partes re-
view of such patents, [or] (d) to submit to any court
or other competent governmental authority prior
art, evidence, or arguments adverse to the patent-
ability or validity of any of the other Party’s patents
or patent applications . . . .
J.A. 333–34 ¶ A.7 (emphasis added). The Agreement spec-
ified the Covenant Period was to expire March 31, 2021.
J.A. 335 ¶ A.11. Meanwhile, the Agreement was set to end
“the earlier of (i) the date when the last of the Licensed Pa-
tents expires or (ii) December 31, 2025.” J.A. 351 ¶ I.1.
After expiration of the Covenant Period, DexCom sued
Abbott in the Western District of Texas, alleging infringe-
ment of sixty claims of five of its patents. Abbott moved to
transfer the case to the District of Delaware, citing the
Agreement’s forum selection clause. While the motion to
transfer was pending, Abbott filed a breach-of-contract suit
against DexCom in Delaware. Among other things, it al-
leged that DexCom breached the Agreement by suing Ab-
bott on licensed patents and by filing its suit in Texas in
violation of the forum selection clause. The Western Dis-
trict of Texas court transferred DexCom’s infringement
suit to Delaware, where it was consolidated with Abbott’s
breach-of-contract suit.
In April 2022—ten months after DexCom filed its in-
fringement suit in Texas—Abbott filed eight petitions for
inter partes review (IPR) of DexCom’s asserted patents.
DexCom filed preliminary patent owner responses in
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DEXCOM, INC. v. ABBOTT DIABETES CARE, INC. 5
August 2022, urging the Board not to institute any of the
IPRs. See, e.g., J.A. 910–92.
Five months later, DexCom answered with a breach-of-
contract counter-counterclaim at the district court, alleg-
ing inter alia that Abbott breached the Agreement’s forum
selection clause by filing IPR petitions. See Abbott Diabetes
Care, Inc. v. DexCom, Inc., No. 21-1699, 2023 U.S. Dist.
LEXIS 69298, at *5–6 (D. Del. Apr. 12, 2023) (Decision); see
also J.A. 320–21 ¶ 358. Prior to this time, DexCom had
consistently taken the position that the claims of the as-
serted patents were not licensed, which would render the
forum selection clause inapplicable. On October 14, 2022,
Abbott moved to dismiss DexCom’s counter-counterclaim.
Then, on October 25, 2022—six months after Abbott
filed its IPR petitions—DexCom moved for a preliminary
injunction, requesting the district court prohibit Abbott
from proceeding with the IPRs. See J.A. 327–28. After an-
alyzing the appropriate preliminary injunction factors, in-
cluding whether DexCom “establish[ed] that [it] is likely to
succeed on the merits, that [it] is likely to suffer irreparable
harm in the absence of preliminary relief, that the balance
of equities tips in [its] favor, and that an injunction is in
the public interest,” the district court denied the prelimi-
nary injunction. Decision, 2023 U.S. Dist. LEXIS 69298,
at *20 n.9, *25–27 (quoting Winter v. Nat. Res. Def. Coun-
cil, Inc., 555 U.S. 7, 20 (2008)). The court assumed for pur-
poses of the motion that DexCom met the first preliminary
injunction factor, i.e., that DexCom had shown a likelihood
of success. Id. at *20–21.
Turning to the second factor—irreparable harm—the
district court found this factor favored denial of an injunc-
tion because DexCom actively participated in IPR proceed-
ings for six months before seeking injunctive relief. Id.
at *21–24. The court reasoned that DexCom’s six-month
delay “negat[es] the idea of irreparability.” Id. at *23
(quoting Pfizer, Inc. v. Teva Pharms. USA, Inc., 429 F.3d
Case: 23-1795 Document: 49 Page: 6 Filed: 01/03/2024
6 DEXCOM, INC. v. ABBOTT DIABETES CARE, INC.
1364, 1382 (Fed. Cir. 2002)). The court explained that
“[a]lthough DexCom says the harm it faces stems from the
PTAB making a validity determination based on a lower
standard of proof, DexCom obviously knew of that potential
harm as soon as it learned about Abbott’s IPR petitions,
and it could have acted accordingly.” Id. at *23.
The district court found that the third factor—balance
of hardship—favored denial because DexCom’s incon-
sistent legal positions (previously arguing that the patents
were not licensed but now seeking a preliminary injunction
by asserting that the patents were licensed) and use of Pa-
tent Trial and Appeal Board’s (PTAB) resources (by partic-
ipating in the IPRs) cut against equitable relief. Id. at *24–
26. For the fourth factor—public interest—the district
court explained that although “‘no public interest [is]
served by excusing a party’s violation of its previously ne-
gotiated contractual undertaking to litigate in a particular
forum,’ it is yet to be determined whether the IPRs, in fact,
violate the” Agreement. Id. at *26 (quoting Gen. Protecht
Grp., Inc. v. Leviton Mfg. Co., 651 F.3d 1355, 1366
(Fed. Cir. 2011)). It then determined that “[a]t this point”
the public interest in preventing invalid patents and allow-
ing the PTAB to complete its proceedings weighed against
an injunction. See id.
DexCom appeals from the district court’s interlocutory
order. We have jurisdiction under 28 U.S.C. §§ 1292(c)(1),
1295(a)(1).
DISCUSSION
We review a denial of a preliminary injunction under
regional circuit law—here, the law of the Third Circuit.
Nippon Shinyaku Co. v. Sarepta Therapeutics, Inc.,
25 F.4th 998, 1004 (Fed. Cir. 2022). The Third Circuit re-
views such denials for an abuse of discretion and reviews
underlying legal errors de novo. Id.; Adams v. Freedom
Forge Corp., 204 F.3d 475, 484 (3d Cir. 2000). “To meet the
abuse-of-discretion standard, the moving party must show
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DEXCOM, INC. v. ABBOTT DIABETES CARE, INC. 7
that the district court has made ‘a clear error of judgment
in weighing relevant factors or in basing its decision on an
error of law or on clearly erroneous factual findings.’”
Bayer CropScience AG v. Dow AgroSciences LLC, 851 F.3d
1302, 1306 (Fed. Cir. 2017) (quoting Mentor Graphics Corp.
v. Quickturn Design Sys., Inc., 150 F.3d 1374, 1377
(Fed. Cir. 1998)).
The court considers the following four factors in evalu-
ating a motion for a preliminary injunction: “(1) whether
the moving party has shown a reasonable likelihood of suc-
cess on the merits; (2) whether the moving party will suffer
irreparable harm in the absence of a preliminary injunc-
tion; (3) whether the balance of hardships tips in the mov-
ing party’s favor; and (4) the impact of a preliminary
injunction on the public interest.” Nippon Shinyaku,
25 F.4th at 1005.
The first factor, whether DexCom is likely to succeed
on the merits of its breach-of-contract counter-counter-
claim, requires interpretation of the Agreement. Specifi-
cally, we must determine whether the Agreement’s forum
selection clause bars the filing of IPRs after the Covenant
Period. Thus, this appeal presents “a question of contract
interpretation under Delaware law, which we review de
novo.” Studiengesellschaft Kohle, M.B.H. v. Hercules, Inc.,
105 F.3d 629, 632 (Fed. Cir. 1997); J.A. 356 ¶ K.7 (“This
Agreement . . . shall be construed, governed, and inter-
preted in accordance with the laws of the State of Dela-
ware . . . .”). The district court assumed for purposes of the
motion that this factor weighed in favor of an injunction. 2
2 The district court has since held that Abbott’s IPR
petitions did not violate the Agreement’s forum selection
clause, reasoning that IPR petitions could only be filed at
the PTAB and thus could not be brought in the District of
Delaware. See ECF No. 21, Ex. 2 (Pretrial Tr. at 88:25–
89:06).
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8 DEXCOM, INC. v. ABBOTT DIABETES CARE, INC.
Our review of the Agreement compels us to conclude other-
wise.
Under Delaware law, contract interpretation requires
that the “construction . . . be that which would be under-
stood by an objective, reasonable third party.” Estate of
Osborn v. Kemp, 991 A.2d 1153, 1159 (Del. 2010). We are
to read the contract “as a whole” and “give each provision
and term effect, so as not to render any part of the contract
mere surplusage.” Id. (quoting Kuhn Const., Inc. v. Dia-
mond State Port Corp., 990 A.2d 393, 396–97 (Del. 2010)).
Our interpretation “requires all contract provisions to be
harmonized and given effect where possible.” Martin Mari-
etta Materials, Inc. v. Vulcan Materials Co., 68 A.3d 1208,
1225 (Del. 2012), as corrected (July 12, 2012).
Under the heading “F. No Challenge Covenants and
Exceptions Thereto,” the Agreement’s no-challenge cove-
nants state that “[d]uring the Covenant Period,” DexCom
and Abbott “shall not Challenge” each other’s patents or
patent applications provided that the parties are comply-
ing with the Agreement. J.A. 345 §§ F.1–2. This section of
the Agreement also contains the following exceptions:
3. However, each Party reserves its rights and is
permitted to Challenge any patent or patent appli-
cation that is being asserted (or threatened to be
asserted) against it or its products.
4. Further, each Party reserves its rights and is
permitted to Challenge any of the patents of the
other Party if there is a statute, regulation, or rule
that sets a deadline to make the Challenge.
J.A. 346.
Section F.4 also lists nonlimiting examples of Chal-
lenges contemplated by the exception, such as post grant
review or interference proceedings. J.A. 346. As noted su-
pra at 3, the Agreement’s definition of Challenge expressly
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DEXCOM, INC. v. ABBOTT DIABETES CARE, INC. 9
includes inter partes review of the parties’ patents.
J.A. 333 § A.7.
We are to interpret contract terms as an objective, rea-
sonable third party would and, on its face, the forum selec-
tion clause applies during the Agreement’s entire term,
including during the Covenant Period. Under the heading,
“Choice of Forum,” the forum selection clause states: “The
United States Federal District Court for the District of Del-
aware shall have exclusive jurisdiction over any dispute
arising from or under or relating to this Agreement, to the
extent permitted by law.” J.A. 353 § J.4. Nothing in the
forum selection clause or elsewhere in the Agreement sug-
gests an intent to restrict the forum selection clause to the
period after the Covenant Period.
Although the parties dispute whether the filing of IPRs
was permissible after the Covenant Period, sections F.3
and F.4 indisputably allowed IPR filings during the Cove-
nant Period under certain conditions. See Oral Arg.
at 3:44–3:54 (DexCom admission), 23:40–23:50 (Abbott ad-
mission), https://oralarguments.cafc.uscourts.gov/de-
fault.aspx?fl=23-1795_09052023.mp3. It necessarily
follows that because the forum selection clause governs
both during and after the Covenant Period, the clause can-
not operate to prohibit the filing of IPRs after the Covenant
Period if it allowed them during the Covenant Period. See
Oral Arg. at 2:22–3:00; see also Martin Marietta, 68 A.3d
at 1225. We are not persuaded by DexCom’s suggestion
that the forum selection clause has a different interpreta-
tion during the Covenant Period versus after the Covenant
Period. Nothing in the Agreement supports such an inter-
pretation. We are similarly unpersuaded by DexCom’s ar-
gument that the forum selection clause does not apply
during the Covenant Period because, as noted above, noth-
ing in the Agreement indicates as much.
Given the specific language in the Agreement in this
case, DexCom’s reliance on our decisions in Texas
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10 DEXCOM, INC. v. ABBOTT DIABETES CARE, INC.
Instruments Inc. v. Tessera, Inc., 231 F.3d 1325 (Fed. Cir.
2000); General Protecht, 651 F.3d at 1355; and Dodocase
VR, Inc. v. MerchSource, LLC, 767 F. App’x 930 (Fed. Cir.
2019) (nonprecedential) to support its argument that the
forum selection clause precludes IPR proceedings is mis-
placed. Although we held that the specific forum selection
clauses at issue in those cases prohibited filing a proceed-
ing outside the stipulated forum, 3 those cases lacked a key
3 In Texas Instruments, the district court denied a
preliminary injunction to prevent the defendant from par-
ticipating in an International Trade Commission (ITC) in-
fringement action because although the parties’ license
agreement required that “any litigation . . . relating to this
Agreement shall take place in California,” Texas Instru-
ments had “not established a likelihood of proving that
[Tessera’s] action before the ITC is litigation.” 231 F.3d
at 1327–28. In reversing the district court’s denial, we ex-
plained that in the field of patent law, which was relevant
to the license at issue, “‘litigation’ does not exclude ITC pro-
ceedings under section 337.” Id. at 1330.
In General Protecht, the district court granted a pre-
liminary injunction to prevent the defendant from litigat-
ing in the Northern District of California or at the ITC.
651 F.3d at 1358. There, the forum selection clause stated
that “[a]ny dispute between the Parties relating to or aris-
ing out of this [Settlement Agreement] shall be prosecuted
exclusively in the United States District Court for the Dis-
trict of New Mexico.” Id. We found no abuse of discretion
in the district court’s grant of the injunction because the
dispute indisputably “relate[d] to or ar[o]se[] out of” the set-
tlement agreement. Id. at 1359.
In Dodocase, the district court also granted a prelimi-
nary injunction to prohibit IPR proceedings, specifically
finding that “Dodocase was likely to succeed on its claim
that MerchSource filed the PTAB petitions in violation of
the forum selection clause of the” license agreement.
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DEXCOM, INC. v. ABBOTT DIABETES CARE, INC. 11
circumstance present here—that the Agreement allowed
the filing of IPR petitions under certain circumstances not-
withstanding the existence of the forum selection clause.
We therefore conclude DexCom cannot succeed on its
breach-of-contract counter-counterclaim. Although the
district court erred in assuming DexCom proved a likeli-
hood of success, this error was harmless as our conclusion
that DexCom failed to demonstrate a likelihood of success
favors the district court’s ultimate denial of the prelimi-
nary injunction. See, e.g., Nippon Shinyaku, 25 F.4th
at 1005 (“[U]nder both Federal Circuit and Third Circuit
precedent, the first factor—i.e., likelihood of success on the
merits—is a necessary showing to establish entitlement to
a preliminary injunction.”). Moreover, because DexCom
cannot succeed on the merits in its breach-of-contract coun-
ter-counterclaim under our legal interpretation of the
Agreement, it is not entitled a preliminary injunction, and
we need not address the remaining preliminary injunction
factors. Reebok Int’l Ltd. v. J. Baker, Inc., 32 F.3d 1552,
1555–56 (Fed. Cir. 1994) (“A movant seeking a preliminary
injunction must establish a reasonable likelihood of success
on the merits . . . .”); see also Nichia Corp. v. Everlight
Ams., Inc., 855 F.3d 1328, 1344 (Fed. Cir. 2017) (“Because
[the movant] failed to establish one of the four equitable
factors, the court did not abuse its discretion in denying
[the movant]’s request for an injunction.”). Accordingly, we
767 F. App’x at 934. The forum selection clause there re-
quired that “disputes shall be litigated before the courts in
San Francisco County or Orange County, California.” Id.
at 932 (cleaned up). The agreement prohibited the non-mo-
vant’s ability to “challenge the validity or enforceability of
the Licensed IP.” Id. We explained that the district court
“did not err in concluding that” the forum selection clause
“encompassed PTAB proceedings.” Id. at 935.
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12 DEXCOM, INC. v. ABBOTT DIABETES CARE, INC.
affirm the district court’s denial of a preliminary injunc-
tion.
CONCLUSION
The district court did not abuse its discretion in deny-
ing the motion for a preliminary injunction. We therefore
affirm.
AFFIRMED