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Expert Analysis

Fed. Circ. Ingenico Ruling Pivotal For IPR Estoppel Landscape

By Joseph Marinelli and Bailey Sanders ( July 22, 2025, 4:36 PM EDT) -- Since inter partes review proceedings were introduced in 2012, courts have wrestled with the extent to which IPR estoppel bars patent challengers in district court litigation from raising invalidity arguments based on prior art that was or reasonably could have been raised, during IPR proceedings. On May 7, the U.S. Court of Appeals for the Federal Circuit addressed this issue in Ingenico Inc. v. Ioengine LLC....

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