On Monday, the U.S. Court of Appeals for the Federal Circuit issued a precedential decision in Shockwave Medical, Inc. v. Cardiovascular Systems, Inc. dismissing cardiovascular health company Shockwave Medical’s appeal arguing that the Patent Trial and Appeal Board (PTAB) erroneously relied on applicant admitted prior art (AAPA) in finding its patent claims obvious. The Federal Circuit found the PTAB’s ruling consistent with its own case law on AAPA, which provided general background knowledge for a person of ordinary skill in the art without serving as the sole basis for the PTAB’s obviousness finding.

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