On May 7, 2025, the Federal Circuit issued a precedential decision in Ingenico Inc. v. IOENGINE, LLC that narrows the scope of inter partes review (IPR) estoppel under 35 U.S.C. § 315(e)(2), resolving a longstanding district...more
As any PTAB practitioner knows, the possibility of being estopped from asserting prior art in district court is a significant risk that must be considered when filing an IPR. Section 315(e)(2) prevents a petitioner, following...more
2/20/2024
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