TrаnsCore, LP and TC License, Ltd. (collectively “TransCore”) appeal from a final judgment of the U.S. District Court for the Northern District of Texas that was entered upon the district court’s grant
*1273
of summary judgment.
See Transcore, LP v. Electronic Transaction Consultants Corp.,
No. 3:05-CV-2316-K,
BACKGROUND
TransCore is engaged in the manufacture, sale and installation of automated toll collection systems — the tаgs and readers that communicate as a vehicle passes through an automated toll plaza (e.g., EZPass). TransCore is the assignee of several patents to related technologies.
In 2000, TransCore sued a competitor, Mark IV Industries, for infringement of several TransCore patents. That action was resolved by a settlement agreement, in which Mark IV agreed to pay $4.5M in exchange for an unconditional сovenant not to sue and a release of all existing claims. The covenant and release, which are central to the dispute here, read:
3. In exchange for the payment set forth in paragraph 1, TCI hereby agrees and covenants not to bring any demand, claim, lawsuit, or action against Mark IV for future infringement of any of United States Patent Nos. 5,805,082; 5,289,183; 5,406,275; 5,144,553; 5,086,389; 5,751,-973; 5,347,274; 5,351,187; 5,253,162; and 4,303,904, or any foreign counterparts of the aforesaid United States Patents, for the entire remainder of the terms of the respective United States Patents and their foreign counterparts. This Covenant Not To Sue shall not apply to any other patents issued as of the effective date of this Agreement or to be issued in the future.
8. TCI, Til and GRAVELLE, for themselves and their respective predecessors, successors, heirs and assigns, fully and forever release, discharge and dismiss all claims, dеmands, actions, causes of action, liens and rights, in law or in equity (known, unknown, contingent, accrued, inchoate or otherwise), existing as of June 26, 2001, that they have against MARK IV, and its officers, directors, employees, representatives and attorneys of MARK IV, but excluding any claims for breach of this Agreement. No express or implied license or future release whatsoever is granted to MARK IV or to any third party by this Release.
Sevеral years later, ETC, a firm engaged in consulting and systems integration related to toll-collection systems, won a bid with the Illinois State Toll Highway Authority (ISTHA) to install and test a new open-road tolling system. As part of the contract, ETC agreed to set up and test toll-collection systems purchased by the ISTHA from Mark IV.
TransCore sued ETC for infringement of three patents that had previously been in suit against Mark IV (U.S. Patent Nos. 5,805,082; 5,289,183; and 5,406,275 (the '082, '183, and '275 patents)) as well as U.S. Patent No. 6,653,946 (the '946 patent), a related patent that was pending *1274 before the Patent and Trademark Office but had not yet issued at the time of the TransCore — Mark IV settlement. During a hearing, the district court questioned the legal impact of the TransCore — Mark TV settlement agreement on the TransCore— ETC lawsuit and ordered the parties to brief the issue. ETC responded by filing a motion for summary judgment with the district court, asserting that its activities were permitted by the TransCore — Mark IV settlement agreement under the related doctrines of patent exhaustion, implied license and legal estoppel.
On May 22, 2008, the district court granted ETC’s motion, dismissed Trans-Core’s claims with prejudice and directed the entry of final judgment. TransCore timely appealed to this court. We have jurisdiction pursuant to 28 U.S.C. § 1295(a)(1).
DISCUSSION
Summary judgment is appropriate if “there is no genuine issue as tо any material fact and ... the movant is entitled to a judgment as a matter of law.” Fed. R. Civ.P. 56(c);
see also Anderson v. Liberty Lobby, Inc.,
I.
The district court found that Mark IV’s sales of the toll collection systems installed by ETC were authorized by the TransCore — Mark IV settlement agreement, such that TransCore’s patent rights were exhausted as to those systems. We agree. 1
A.
Recently, in
Quanta Computer, Inc. v. LG Electronics, Inc.,
— U.S. -,
TransCore asserts that sales under a covenant not to sue are not “authorized,” relying heavily on
Jacobs v. Nintendo of America, Inc.,
If all that [the patent holder] intended to do through the settlement agreement *1275 was to free [the infringing manufacturer] of its liability for infringement, paragraph 5 of the agreement (the covenant not to sue) would have been fully sufficient to serve that purpose. Paragraph 3 [the license provision], however, goes much further by granting [the infringing manufacturer] an affirmative right to engage in the manufacture and sale of accelerometers to be used in tilt-sensitive control boxes. That grant comes without restriction of any kind.
Id.
at 1101. The court in
Jacobs
was differentiating between settlement terms for the express purpose of determining the contracting parties’ intent in the context of an implied license analysis. As the Supreme Court explained in
Quanta,
however, the parties’ intent with respect to downstream customers is of no moment in a patent exhaustion analysis.
See Quanta,
Rather, our analysis begins with the premise that one cannot convey what one does not own. This principle is particularly important in patent licensing, as the grant of a patent does not provide the patentee with an affirmative right to practice the patent but merely the right to exclude. See 35 U.S.C. § 154(a)(1) (“Every patent shall contain ... a grant to the patentee, his heirs or assigns, of the right to exclude others from making, using, offering for sale, or selling the invention throughout the United States or importing
the invention into the United States .... ”);
see also Leatherman Tool Group Inc. v. Cooper Indus., Inc.,
For this reason, the Supreme Court in
De Forest Radio Telephone & Telegraph Co. v. United States,
reiterated: “As a license passes no interest in the monopoly, it has been described as a mere waiver of the right to sue by the patentee.”
As a threshold matter, a patent license agreement is in essence nothing more than a promise by the licensor not to sue the licensee. Even if couched in terms of “[l]icensee is given the right to make, use, or sell X,” the agreement cannot *1276 convey that absolute right because not even the patentee of X is given that right. His right is merely onе to exclude others from making, using or selling X. Indeed, the patentee of X and his licensee, when making, using, or selling X, can be subject to suit under other patents. In any event, patent license agreements can be written to convey different scopes of promises not to sue, e.g., a promise not to sue under a specific patent or, more broadly, a promise not to sue under any patent the licensor now has or may acquire in the future.
Spindelfabrik Suessem-Schurr, Stahlecker & Grill GmbH v. Schubert & Salzer Maschinenfabrik Aktiengesellschaft,
The language of the TransCore — Mark IV settlement agreement is unambiguous: “[TransCore] agrees and covenants not to bring any demаnd, claim, lawsuit, or action against Mark IV for future infringement. ...” This term, without apparent restriction or limitation, thus authorizes all acts that would otherwise be infringements: making, using, offering for sale, selling, or importing. TransCore did not, as it could have, limit this authorization to, for example, “making” or “using.” And indeed, at oral argument, TransCore conceded that the TransCore — Mark IV settlement agreement does not include a restriction on sales. See Audio Recording of Oral Arg. at 40:54-42:25, TransCore, LP v. Elec. Transaction Consultants Corp., No. 2008-1430 (Fed.Cir. Feb. 5, 2009), available at http://oralarguments.cafc.uscourts. gov/mp3/2008-1430.mp3; cf. Quanta, 128 *1277 S.Ct. аt 2121 (applying patent exhaustion where “[n]othing in the License Agreement restricts [licensee’s] right to sell its microprocessors and chipsets to purchasers who intend to combine them with non-Intel parts. It broadly permits Intel to ‘make, use, [or] sell’ products free of [licensor’s] patent claims.” (internal quotation marks omitted)). As a result, the district court correctly found that Mark IVs sales to ISTHA were authorized and that TransCorе’s patent rights are exhausted. The inclusion of the language “No express or implied license or future release whatsoever is granted to MARK IV or to any third party by this Release” refers only to the effect of the Release provision and thus does not require a different result.
B.
As a subordinate issue to the proper interpretation of the covenant not to sue, TransCore argues that the district court abused its discretion by excluding parol evidence of TransCore’s and Mark IVs intent at the time they entered into the settlement agreement. We disagree.
Evidentiary rulings, which are procedural in nature, are reviewed by this court according to the law of the regional circuit.
See Sulzer Textil A.G. v. Picanol N.V.,
The district court’s decision to exclude TransCore’s parol evidence has not affected any substantial right of Trans-Core. On this point
Quanta
is clear. The only issue relevant to patent exhaustion is whether Mark IV’s sales were authorized, not whether TransCore and Mark IV intended, expressly or impliedly, for the covenant to extend to Mark IV’s customers.
See Quanta,
Moreover, California law, which governs the TransCore — Mark IV settlement agreement, prohibits the admission of parol evidence: (i) to insert an additional term into a written contract, if the contract is a complete and exclusive statement of the terms of the agreement, Cal.Civ.Proc.Code § 1856(b), (d); and/or (ii) to influence the meaning of contract terms where no ambiguity exists,
id.
§ 1856(g);
see also Pac. Gas & Elec. Co. v. G.W. Thomas Dray age & Rigging Co.,
*1278 C.
TransCore further argues that several material facts remain in dispute: (1) which Mark TV entity actually sold the products to ISTHA for installation by ETC; (2) whether the sale from Mark IV to ISTHA occurred within the United States; and (3) assuming Mark TV U.S. (referred to by the parties, at times, as “IVHS”) is found to have actually sold the products to IS-THA, whether Mark IV U.S. was included within the terms of the TransCore — Mark IV settlement agreement, which extended coverage to “sister” companiеs of Mark IV Canada. Based on the record before the district court, as viewed in the light most favorable to TransCore (the non-movant), we disagree.
Although the parties do not agree about which Mark IV entity actually sold the toll collection products — the irrevocable offer was made by Mark IV US, but the purchase order was placed with (and the order was ultimately filled by) Mark IV Canada — there is no dispute that a Mаrk IV entity was responsible for the sale.
Moreover, there is no dispute that the toll collection products were sold and shipped to ISTHA. Even if we accept TransCore’s assertions that the products were shipped from Canada, this does not alter the essential fact that the transaction as a whole ultimately occurred “to” the United States.
See Lightcubes, LLC v. N. Light Prods., Inc.,
Finally, as to the third “disputed” fact— whether Mark IV U.S. is covered by the terms of the TransCore — Mark IV settlement agreement — the parties do not dispute that both Mark IV U.S. and Mark IV Canada are wholly-owned subsidiaries of Mark IV Industries. Because the term “sister company” is commonly used and generally understood to refer to a subsidiary company that shares common ownership (i.e., a common “parent”) with another subsidiary сompany,
see generally, e.g., Poly-America, L.P. v. GSE Lining Tech., Inc.,
II.
The district court further found that TransCore’s rights to the '946 patent — which had not yet issued and was thus not identified in the TransCore— Mark IV settlement agreement — were exhausted by Mark IV’s authorized sales under an implied license to practice that patent by virtue of legal estoppel. Again, we agree with the district court.
As explained by our predecessor court in
AMP Inc. v. United States,
[W]hen a person sells a patent which employs an invention which infringes a prior patent, the person selling is es-topped from bringing an action against his grantee for that infringement, even though the earlier patent is acquired after the sale of the later patent. The same principle applies to the grant of a patent right by license as well as assignment.
*1279 Id. at 451 (citation omitted). Although TransCore argues that this form of legal estoppel only applies to “prior” or “earlier” patents, we see no rеason for so fine a distinction — the timing of patent issuance is no more relevant to this inquiry than the timing of acquisition. Indeed, the court in AMP explained the policy rationale underlying the legal estoppel doctrine in the following manner:
The essence of legal estoppel that can be found in the estoppel of the implied license doctrine involves the fact that the licensor (or assignor) has licensed (or assigned) a definable property right for valuable consideration, and then has attempted to derogate or detract from that right. The grantor is estopped from taking back in any extent that for which he has already received consideration.
Id.
at 452. The basic principle is, therefore, quite simple: “Legal estoppel refers to a narrow[ ] category of conduct encompassing scenarios where a patentee has licensed or assigned a right, received consideration, and then sought to derogate from the right granted.”
Wang Labs., Inc. v. Mitsubishi Elees. Am., Inc.,
On summary judgment, ETC asserted, and TransCore did not dispute, 3 that TransCore’s later-issued '946 patent was broader than, and necessary to practice, at least the '082 patent that was included in the TransCore — -Mark IV settlement agreement. Indeed, during discovery TransCore adoptеd its '082 patent infringement contentions as its contentions related to the '946 patent. 4 Absent argument to the contrary, the district court properly concluded that in order for Mark IV to obtain the benefit of its bargain with TransCore, it must be permitted to practice the '946 patent to the same extent it may practice the '183, '275 and '082 patents. TransCore is, therefore, legally es-topped from asserting the '946 patent agаinst Mark IV in derogation of the authorizations granted to Mark IV under the '183, '275 and '082 patents. And Mark IV is, in turn, an implied licensee of the '946 patent. The language of the TransCore— Mark IV settlement agreement, which states that “[t]his Covenant Not To Sue shall not apply to any other patents ... to be issued in the future,” is not to the contrary. This language may protect TransCore against broad claims that future patents generally are impliedly licensed, but it does not permit TransCore to derogate from the rights it has expressly granted and thus does not preclude a finding of estoppel.
Mark IV’s rights under its implied license to the '946 patent are necessarily coextensive with the rights it received in *1280 the TransCore — Mark IV license agreement. Mark IV’s sales to ISTHA were thus authorized and, accordingly, exhausted TransCore’s patent rights in the products sold.
CONCLUSION
The district court’s decision, granting summary judgment and thus dismissing TransCore’s claims, is affirmed.
AFFIRMED
COSTS
No costs.
Notes
. Because we agree with the district court that TransCore’s claims are barred by the doctrine of patent exhaustion, we need not address the district court’s decision on the related doctrine of implied license by no non-infringing use.
.
We note that, under California law, the district court may
receive
and
consider
extrinsic evidence to determine whether one or more terms of a contract is reasonably susceptible to multiple meanings,
see Dore v. Arnold Worldwide, Inc.,
. On appeal, TransCore claims that it is possible to practice the '183, '275 and '082 patents without infringing the '946 patent. Trans-Core did not, however, raise this argument to the district court. We, therefore, deem it waived.
See Sage Prods., Inc. v. Devon Indus., Inc.,
. At oral argument, TransCore argued that "a contention of infringement ... is not enough for an implied license.” Oral Arg. at 39:31-39:35. This argument misses the mark. TransCore’s contentions did not create the implied license; they merely serve as evidence that TransCore sought to enforce the '946 patent in derogation of the rights it granted under the TransCore — Mark IV settlement agreement. That attempted derogation is prevented by legal estoppel, which gives rise to the implied license.
