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In a significant development for patent litigants, the Federal Circuit in Ingenico Inc. v. IOENGINE, LLC, affirmed an important limitation on the scope of IPR estoppel under 35 U.S.C. § 315(e)(2). Specifically, the court held...more
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
The Federal Circuit recently clarified the scope of statutory estoppel that applies in District Court after the PTAB issues a final written decision in a related inter partes review (IPR). Ingenico Inc. v. IOENGINE, LLC, No....more
Inter partes review (IPR) proceedings raise complex estoppel issues that courts are grappling with and patent litigants must consider. Because patent challengers can assert invalidity in three different tribunals (the...more
[co-author: Jamie Dohopolski] Love it or hate it, ignore the USPTO Patent Trial and Appeal Board (PTAB) at your peril. The introduction of the PTAB as part of the America Invents Act over ten years ago has forever changed...more
In Network-1 Technologies, Inc. v. Hewlett-Packard Company, the Federal Circuit vacated and remanded the district court’s holding that joinder petitioner Hewlett Packard (“HP”) (1) could have tried to raise new grounds in its...more
NETWORK-1 TECHNOLOGIES, INC. v. HEWLETT-PACKARD COMPANY, HEWLETT PACKARD ENTERPRISE COMPANY - Before Prost, Newman, and Bryson. Appeal from the United States District Court for the Eastern District of Texas. Summary: A...more
In Biscotti Inc. v. Microsoft Corp., Magistrate Judge Payne recommended that estoppel under §315(e) apply broadly against Microsoft in an upcoming patent infringement trial scheduled for early June 2017. No....more