Supreme Court Invokes Common Law Principles in Largely Pro-Patent Decision: Good-Faith Belief of Invalidity Is Not a Defense to Induced Patent Infringement

The Supreme Court decided today in Commil USA, LLC v. Cisco Systems, Inc. that an accused infringer’s good-faith belief that a patent is invalid, standing alone, is not a defense to induced infringement.  As discussed in greater detail in our earlier post, the Federal Circuit reversed the district court’s ruling that prohibited Cisco from presenting evidence of its good-faith belief that Commil’s patent was invalid, as a defense to induced infringement. Among other things, the Court reasoned that a different result would contravene the presumption that a patent is valid. To overcome that presumption, a defendant must provide clear and convincing   Read More »

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