Held: A defendant’s belief regarding patent validity is not a defense to an induced infringement claim. Pp. 5–14.
(a) While this case centers on inducement liability, 35 U. S. C. §271(b), which attaches only if the defendant knew of the patent and that “the induced acts constitute patent infringement,” Global-Tech Appliances, Inc. v. SEB S. A., 563 U. S. ___, ___, the discussion here also refers to direct infringement, §271(a), a strict-liability offense in which a defendant’s mental state is irrelevant, and contributory infringement, §271(c), which, like inducement liability, requires knowledge of the patent in suit and knowledge of patent infringement, Aro Mfg. Co. v. Convertible Top Replacement Co., 377 U. S. 476, 488 (Aro II). Pp. 5–6.
(b) In Global-Tech, this Court held that “induced infringement . . . requires knowledge that the induced acts constitute patent infringement,” 563 U. S., at ___, relying on the reasoning of Aro II, a contributory infringement case, because the mental state imposed in each instance is similar. Contrary to the claim of Commil and the Government as amicus, it was not only knowledge of the existence of respondent’s patent that led the Court to affirm the liability finding in Global-Tech, but also the fact that petitioner’s actions demonstrated that it knew it would be causing customers to infringe respondent’s patent. 563 U. S., at ___. Qualifying or limiting that holding could make a person, or entity, liable for induced or contributory infringement even though he did not know the acts were infringing. GlobalTech requires more, namely proof the defendant knew the acts were infringing. And that opinion was clear in rejecting any lesser mental state as the standard. Id., at ___. Pp. 6–9.
(c) Because induced infringement and validity are separate issues and have separate defenses under the Act, belief regarding validity cannot negate §271(b)’s scienter requirement of “actively induce[d] infringement,” i.e., the intent to “bring about the desired result” of infringement, 563 U. S., at ___. When infringement is the issue, the patent’s validity is not the question to be confronted. See Cardinal Chemical Co. v. Morton Int’l, Inc., 508 U. S. 83. Otherwise, the long held presumption that a patent is valid, §282(a), would be undermined, permitting circumvention of the high bar—the clear and convincing standard—that defendants must surmount to rebut the presumption. See Microsoft Corp. v. i4i Ltd. Partnership, 564 U. S. ___, ___–___. To be sure, if a patent is shown to be invalid, there is no patent to be infringed. But the orderly administration of the patent system requires courts to interpret and implement the statutory framework to determine the procedures and sequences that the parties must follow to prove the act of wrongful inducement and any related issues of patent validity.
There are practical reasons not to create a defense of belief in invalidity for induced infringement. Accused inducers who believe a patent is invalid have other, proper ways to obtain a ruling to that effect, including, e.g., seeking ex parte reexamination of the patent by the Patent and Trademark Office, something Cisco did here. Creating such a defense could also have negative consequences, including, e.g., rendering litigation more burdensome for all involved. Pp. 9–13.
(d) District courts have the authority and responsibility to ensure that frivolous cases—brought by companies using patents as a sword to go after defendants for money—are dissuaded, though no issue of frivolity has been raised here. Safeguards—including, e.g., sanctioning attorneys for bringing such suits, see Fed. Rule Civ. Proc. 11— combined with the avenues that accused inducers have to obtain rulings on the validity of patents, militate in favor of maintaining the separation between infringement and validity expressed in the Patent Act. Pp. 13–14. 720 F. 3d 1361, vacated and remanded.
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