Case: 19-1264   Document: 64     Page: 1    Filed: 02/06/2020




   United States Court of Appeals
       for the Federal Circuit
                 ______________________

                 CHEETAH OMNI LLC,
                   Plaintiff-Appellant

                            v.

     AT&T SERVICES, INC., A DELAWARE
  CORPORATION, CIENA CORPORATION, CIENA
         COMMUNICATIONS, INC.,
             Defendants-Appellees
            ______________________

                       2019-1264
                 ______________________

    Appeal from the United States District Court for the
 Northern District of Texas in No. 3:17-cv-01993-K, Judge
 Ed Kinkeade.
                 ______________________

                Decided: February 6, 2020
                 ______________________

    THOMAS A. LEWRY, Brooks Kushman PC, Southfield,
 MI, argued for plaintiff-appellant. Also represented by
 DAVID C. BERRY, CHRISTOPHER C. SMITH.

     L. NORWOOD JAMESON, Duane Morris LLP, Atlanta,
 GA, argued for all defendants-appellees. Defendant-appel-
 lee AT&T Services, Inc. also represented by MATTHEW
 YUNGWIRTH, ALISON HADDOCK HUTTON; CHRISTOPHER
 JOSEPH TYSON, Washington, DC.
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 2                   CHEETAH OMNI LLC v. AT&T SERVICES, INC.




     MATTHEW J. MOORE, Latham & Watkins LLP, Wash-
 ington, DC, for defendants-appellees Ciena Corporation,
 Ciena Communications, Inc. Also represented by GABRIEL
 BELL, ABIGAIL A. RIVES; CLEMENT J. NAPLES, New York,
 NY.
                 ______________________

     Before LOURIE, BRYSON, and CHEN, Circuit Judges.
 LOURIE, Circuit Judge.
     Cheetah Omni LLC (“Cheetah”) appeals from the judg-
 ment of the U.S. District Court for the Northern District of
 Texas dismissing its infringement claims against appellees
 AT&T Services, Inc. (“AT&T”) and Ciena Communications,
 Inc. and Ciena Corporation (collectively, “Ciena”) with prej-
 udice. Judgment, Cheetah Omni LLC v. AT&T Servs., Inc.,
 No. 3:17-cv-01993-K (N.D. Tex. Oct. 23, 2018), ECF No.
 130. For the reasons detailed below, we affirm.
                        BACKGROUND
     Cheetah owns U.S. Patent 7,522,836 (“the ’836 patent”)
 directed to optical communication networks. AT&T uses a
 system of hardware and software components in its AT&T
 fiber optic communication networks.
      In the district court, Cheetah asserted that AT&T in-
 fringes the ’836 patent by making, using, offering for sale,
 selling, or importing its fiber equipment and services. In
 response to the allegations, Ciena moved to intervene in
 the suit because it manufactures and supplies certain com-
 ponents for AT&T’s fiber optic systems and because those
 components formed the basis of some of Cheetah’s infringe-
 ment allegations. The court granted Ciena’s motion to in-
 tervene.
     Ciena and AT&T then moved for summary judgment
 that Cheetah’s infringement claim was barred by agree-
 ments settling previous litigation. Specifically, Cheetah
 had brought suit against Ciena and Fujitsu Network
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 CHEETAH OMNI LLC v. AT&T SERVICES, INC.                      3



 Communications (“Fujitsu”) and executed two license
 agreements—one with Ciena and one with Fujitsu. In
 their motion, Ciena and AT&T argued that the two prior
 licenses included implicit licenses to the ’836 patent cover-
 ing all of the accused products. The district court agreed,
 granting summary judgment and dismissing the suit with
 prejudice. Memorandum Opinion and Order, Cheetah
 Omni LLC v. AT&T Servs., Inc., No. 3:17-cv-01993-K (N.D.
 Tex. Oct. 23, 2018), ECF No. 129 (“Decision”).
    Cheetah appealed, and we have jurisdiction under
 28 U.S.C. § 1295(a)(1).
                          DISCUSSION
     We review a grant of summary judgment under the law
 of the regional circuit, which in this case is the Fifth Cir-
 cuit. See Charles Mach. Works, Inc. v. Vermeer Mfg. Co.,
 

, 1378 (Fed. Cir. 2013) (citing Grober v. Mako
 Prods., Inc., 

, 1344 (Fed. Cir. 2012)). The
 Fifth Circuit reviews a grant of “summary judgment de
 novo.” Patel v. Texas Tech Univ., 

, 747 (5th
 Cir. 2019) (citing Ezell v. Kan. City S. Ry. Co., 

,
 297 (5th Cir. 2017)).
     Summary judgment is appropriate when the moving
 party demonstrates that “there is no genuine dispute as to
 any material fact and the movant is entitled to judgment
 as a matter of law.” Fed. R. Civ. P. 56(a); Celotex Corp. v.
 Catrett, 

, 322–23 (1986). We construe the evi-
 dence in the light most favorable to the nonmovant and
 draw all reasonable inferences in that party’s favor. R & L
 Inv. Prop., LLC v. Hamm, 

, 149 (5th Cir. 2013)
 (quoting Griffin v. United Parcel Serv., Inc., 

,
 221 (5th Cir. 2011)). “Only disputes over facts that might
 affect the outcome of the suit under the governing law will
 properly preclude the entry of summary judgment.” Ander-
 son v. Liberty Lobby, Inc., 

, 248 (1986).
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 4                    CHEETAH OMNI LLC v. AT&T SERVICES, INC.




     The Fifth Circuit “review[s] the district court’s legal
 conclusions, including its interpretation of contracts, de
 novo.” Texaco Expl. & Prod., Inc. v. AmClyde Engineered
 Prods. Co., 

, 777 (5th Cir. 2006) (citing Taita
 Chem. Co. v. Westlake Styrene Corp., 

, 385 (5th
 Cir. 2001) and Nolan v. Golden Rule Ins. Co., 

,
 992 (5th Cir. 1999)).
      To frame the parties’ dispute, a review of the previous
 litigation and resulting settlements is necessary. In 2011,
 Cheetah brought suit against, inter alia, Ciena and Fu-
 jitsu, accusing certain Reconfigurable Optical Add/Drop
 Multiplexer (“ROADM”) products of infringing, inter alia,
 U.S. Patent 7,339,714 (“the ’714 patent”). See Complaint,
 Cheetah Omni LLC v. Alcatel-Lucent USA Inc., No. 6:11-
 cv-00390-TBD (E.D. Tex. July 29, 2011), ECF No. 1. Chee-
 tah settled the ROADM case with both Ciena and Fujitsu,
 executing two separate agreements with each party: a cov-
 enant not to sue and a license. Relevant here are the li-
 cense agreements (“licenses”).
     The licenses granted to Ciena and Fujitsu do not differ
 in any material respect for purposes of the present appeal,
 so we treat the Ciena license as representative. Cheetah
 granted to Ciena “a perpetual, irrevocable, worldwide, non-
 exclusive, fully paid-up license under the Licensed Patents
 to make, have made (directly or indirectly and solely for
 Ciena or its Affiliates), use, offer to sell, sell, and import
 and export the Licensed Products.” J.A. 411. The agree-
 ment defined “Licensed Patents” to mean
     (i) the Patents-in-Suit, and (ii) all parents, provision-
     als, substitutes, renewals, continuations, continua-
     tions-in-part, divisionals, foreign counterparts,
     reissues, oppositions, continued examinations,
     reexaminations, and extensions of the Patents-in-
     Suit owned by, filed by, assigned to or otherwise
     controlled by or enforceable by Cheetah or any of
     its Affiliates or its or their respective successors in
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 CHEETAH OMNI LLC v. AT&T SERVICES, INC.                      5



     interest at any time as of, prior to, on or after the
     Effective Date, whether filed before, on or after the
     Effective Date.
 J.A. 410. The “Effective Date” was defined as “the earliest
 date upon which all Parties ha[d] signed th[e] Agreement
 or identical counterparts thereof.” J.A. 411. The “Licensed
 Products” were defined as
     (i) all past, present or future Ciena or Ciena Affili-
     ate products, services or combinations, compo-
     nents, or systems of products or services, and any
     modifications or enhancements thereof, that could
     by themselves or in combination with other prod-
     ucts, services, components or systems, be alleged to
     infringe at least one claim of at least one Licensed
     Patent in the absence of a license under this Agree-
     ment and (ii) all Ciena products identified or ac-
     cused by Cheetah of infringing any claim of any of
     the Patents-in-Suit in its complaint, amended com-
     plaint, infringement contentions, or otherwise.
 J.A. 410.
     Key to the parties’ dispute is the relationship between
 the ’836 and ’714 patents. The ’714 patent is a continua-
 tion-in-part of U.S. Patent 6,943,925 (“the ’925 patent”).
 The ’836 patent is a continuation of U.S. Patent 7,145,704
 (“the ’704 patent”), which is also a continuation of the ’925
 patent. These relationships are depicted below:
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 6                    CHEETAH OMNI LLC v. AT&T SERVICES, INC.




      Because the ’714 patent was asserted in the ROADM
 litigation, it is necessarily included in the Ciena license. By
 its terms, the Ciena license also includes “all parents” to
 the patents in the ROADM litigation, and, as the parent to
 the ’714 patent, the ’925 patent is likewise an expressly li-
 censed patent under the agreement, even if not enumer-
 ated. The question we are presented with here, however,
 is whether the ’836 patent, a continuation of a continuation
 of the ’925 patent, i.e., its grandchild, is impliedly licensed
 under the Ciena license. In personal terms, because the
 uncle and grandparent of the ’836 patent, are licensed, is
 the ’836 patent also licensed?
     Relying on our holding in General Protecht Group Inc.
 v. Leviton Manufacturing Co., 

, 1361 (Fed.
 Cir. 2011), the district court determined that the ’836 pa-
 tent was impliedly licensed as the grandchild of the ex-
 pressly licensed ’925 patent. Decision, slip op. at 10. The
 district court reasoned that an express license of the ’925
 patent included an implied license for its continuations “be-
 cause those continuations disclose the same inventions as
 the licensed patent.” 

      Cheetah’s primary argument to the contrary is that the
 parties did not intend that the licenses extend to the ’836
 patent. In settling the ROADM litigation, Ciena and Fu-
 jitsu each executed a license and a separate covenant not
 to sue, and the covenants not to sue expressly included the
 ’836 patent, while the licenses did not. Further, Fujitsu
 was aware of the ’836 patent due to its participation and
 settlement of a previous litigation where the ’836 patent
 was at issue. According to Cheetah, all parties were aware
 of the ’836 patent, and if they had intended to include the
 ’836 patent, the patent would have been expressly named
 in the license agreements.
     Cheetah also argues that the ’836 patent covers an in-
 vention different from the inventions claimed in the pa-
 tents at issue in the ROADM litigation. Cheetah contends
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 CHEETAH OMNI LLC v. AT&T SERVICES, INC.                   7



 that the ’836 patent claims are directed to a system that
 includes ROADM technology in combination with other
 components, while the ROADM patents cover only ROADM
 functionality. Cheetah further argues that the accused
 AT&T products are not “Licensed Products” within the
 scope of the licenses.
      AT&T and Ciena respond that neither license agree-
 ment expressly lists all included patents by number and,
 instead, only lists broad categories of patents. AT&T and
 Ciena also note that the parties did exclude other patents
 explicitly: the Ciena covenant recited a list of medical pa-
 tents the parties expressly excluded from the agreement.
 Thus, Ciena argues, if the parties had mutually intended
 to exclude the ’836 patent, they would have done so explic-
 itly.
     As for Cheetah’s other arguments, AT&T and Ciena
 maintain that the licenses are not limited to any particular
 claims of the patents from the ROADM litigation and, by
 including continuations, contemplate “the entirety of the
 disclosed inventions and any claims that could issue from
 such disclosed inventions.” AT&T and Ciena Br. 30. AT&T
 and Ciena also submit that the accused AT&T system is a
 “Licensed Product” within the scope of the licenses because
 the definition of “Licensed Product” extends to Ciena and
 Fujitsu products in combination with other products. In
 the alternative, AT&T and Ciena argue that Cheetah’s
 claims are also barred by the covenants not to sue.
     We agree with the district court, and with AT&T and
 Ciena, that the licenses include an implied license to the
 ’836 patent that extends to the accused AT&T systems. Le-
 gal estoppel prevents licensors from derogating or detract-
 ing from definable license rights granted to licensees for
 valuable consideration. AMP Inc. v. United States, 

, 452 (Ct. Cl. 1968). In TransCore, we interpreted
 legal estoppel to provide an implied license to a related,
 later-issued patent that was broader than and necessary to
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 8                   CHEETAH OMNI LLC v. AT&T SERVICES, INC.




 practice an expressly licensed patent. TransCore, LP v.
 Elec. Transaction Consultants Corp., 

, 1279
 (Fed. Cir. 2009).
     Two years later, we considered whether an express li-
 cense to a patent includes an implied license to its contin-
 uations, even when the continuation claims are narrower
 than previously asserted claims. General 

. Relying on TransCore, we answered that
 question in the affirmative: “Where . . . continuations issue
 from parent patents that previously have been licensed as
 to certain products, it may be presumed that, absent a clear
 indication of mutual intent to the contrary, those products
 are impliedly licensed under the continuations as well.” 

explained that parties could contract around
 the presumption of an implied license if it did not “reflect
 their intentions” but that it was the parties’ burden to
 “make such intent clear in the license.” 

Protecht, the continuation patent at issue
 had not yet issued at the time of the parties’ express license
 of the parent patent. Cheetah attempts to cabin General
 Protecht’s holding to express licenses executed before the
 issuance of a continuation patent. We decline to read Gen-
 eral Protecht so narrowly. The timing of patent issuance is
 not material to the policy rationale underpinning our im-
 plied license presumption. See 

. Moreover, if anything, it is easier for the parties to
 clearly identify an already-issued continuation and ex-
 pressly exclude it from a license agreement.
      Applying the presumption established in General Pro-
 techt provides a simple and clear resolution in this case.
 Because the ’925 patent is an expressly licensed patent in
 the licenses, the licenses also include an implied license to
 a continuation of its continuation, the ’836 patent. To the
 extent Cheetah argues that the ’836 patent claims cover a
 different invention from or are narrower than the ’925 pa-
 tent claims, the answer is that the same inventive subject
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 CHEETAH OMNI LLC v. AT&T SERVICES, INC.                     9



 matter was disclosed in the expressly licensed patents. If
 Cheetah did not intend its license “to extend to claims pre-
 sented in continuation patents, it had an obligation to
 make that clear.” General 

. The
 expectation is properly placed on the patent owner, Chee-
 tah, to specifically carve out continuation patents that it
 intended to exclude because Cheetah has the most infor-
 mation about its total patent portfolio. If Cheetah had a
 contrary intent, it could have made its intent clear in the
 agreement as a matter of contract drafting.
     Cheetah attempts to evade the presumption that a li-
 cense to a patent includes a license to its continuation by
 arguing that the parties had knowledge of the ’836 patent
 and would have named it expressly if they mutually in-
 tended that it be included. The naming of certain patents
 expressly, however, does not evince a clear mutual intent
 to exclude other patents falling within the general defini-
 tions in an agreement. That is especially true here where
 the licenses list broad categories of patents without recit-
 ing their numbers individually.
     Cheetah finally argues that the AT&T products ac-
 cused in this litigation are not “Licensed Products” within
 the scope of the licenses. But the Ciena license defines “Li-
 censed Products” as “all past, present, or future Ciena or
 Ciena Affiliate products . . . that could by themselves or in
 combination with other products, services, components or
 systems, be alleged to infringe at least one claim of at least
 one Licensed Patent.” J.A. 410 (emphasis added). The ac-
 cused AT&T systems combine Ciena and Fujitsu products
 with other components and are thus Licensed Products
 within the meaning of the licenses.
     Because the licenses extend to both the ’836 patent and
 the AT&T products accused in this litigation, the district
 court properly granted summary judgment for AT&T and
 Ciena and dismissed the infringement suit. And because
 we have concluded that AT&T’s products are licensed
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 10                CHEETAH OMNI LLC v. AT&T SERVICES, INC.




 under the license agreement, we need not consider the
 scope of the covenant not to sue.
                      CONCLUSION
     We have considered Cheetah’s remaining arguments
 but find them unpersuasive. Accordingly, the judgment of
 the district court is affirmed.
                      AFFIRMED