An accused party’s belief in the invalidity of a patent is not a defense to a claim that the party induced infringement of the patent, the U.S. Supreme Court has held. In a dispute between Commil USA and accused infringer Cisco Systems, the Court reversed a holding of the U.S. Court of Appeals for the Federal Circuit that “evidence of an accused inducer’s good-faith belief of invalidity may negate the requisite intent for induced infringement.” The case was remanded for further proceedings consistent with the Supreme Court’s decision (Commil USA, LLC v. Cisco Systems, Inc., May 26, 2015, Kennedy, A.).

A full summary of this case has been published on Kluwer IP Law.


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