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Shockwave Medical vs. Cardiovascular Systems (Fed. Cir., July 14, 2025) 2023-1864
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This opinion from the United States Court of Appeals for the Federal Circuit, dated July 14, 2025, concerns a patent dispute between Shockwave Medical, Inc. and Cardiovascular Systems, Inc. The case involves an inter partes review (IPR) of U.S. Patent No. 8,956,371, which covers a shockwave balloon catheter system for treating atherosclerosis. The core issue revolves around the patentability of claims within Shockwave's patent, specifically whether certain claims were obvious based on prior art. The court ultimately affirms the Board's finding that most of Shockwave's claims were unpatentable, while reversing the Board's decision regarding claim 5, deeming it also unpatentable. The opinion also addresses CSI's standing to bring the cross-appeal and clarifies the permissible use of applicant-admitted prior art (AAPA) in IPR proceedings.
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