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Expert Analysis

How IPR Estoppel Ruling May Clash With PTAB Landscape

By Andrew Zappia, Bryan Smith and Nicholas Gallo ( June 17, 2025, 6:41 PM EDT) -- On May 7, the U.S. Court of Appeals for the Federal Circuit held in Ingenico Inc. v. Ioengine LLC that inter partes review estoppel does not extend to arguments that the claimed invention is invalid because it was known or used by others, on sale, or in public use....

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