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Inter Partes Review (IPR) Proceeding Split of Authority Estoppel

Fish & Richardson

Ingenico v. IOENGINE and the Diminishing Role of Sotera Stipulations

Fish & Richardson on

In Ingenico v. IOENGINE, No. 2023-1367 (Fed. Cir. May 7, 2025), the Federal Circuit resolved a long-standing split among District Courts in favor of petitioners regarding inter partes review (IPR) estoppel under 35 U.S.C. §...more

Jones Day

District Courts Split on Admissibility of Patent Owner IPR Victories

Jones Day on

In an opinion dated October 12, 2017, the U.S. District Court for the Eastern District of Wisconsin granted a motion in limine to exclude evidence that a challenged patent had survived twenty post-issuance proceedings,...more

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