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Prior Art Inter Partes Review (IPR) Proceeding Appellate Courts

K&L Gates LLP

Estoppel Estopped?

K&L Gates LLP on

The Federal Circuit recently resolved a split among the district courts whether patent infringement defendants who bring inter partes review (IPR) challenges are estopped from raising new prior art challenges in a co-pending...more

Paul Hastings LLP

Federal Circuit Clarifies the Scope of IPR Estoppel

Paul Hastings LLP on

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

Schwabe, Williamson & Wyatt PC

Latest Federal Court Cases: Qualcomm Inc. v. Apple Inc.

Qualcomm Inc. v. Apple Inc., Appeal Nos. 2023-1208, -1209 (Fed. Cir. Apr. 23, 2025) - For a second time in this case, the Federal Circuit considered the proper role of “Applicant Admitted Prior Art” in an inter partes...more

Schwabe, Williamson & Wyatt PC

Latest Federal Court Cases - January 2025 #3

Bearbox LLC v. Lancium LLC, Appeal No. 2023-1922 (Fed. Cir. Jan. 13, 2025) In this week’s Case of the Week, the Federal Circuit affirmed a district court’s determination that appellants Bearbox and Austin Storms—Bearbox’s...more

Warner Norcross + Judd

Federal Circuit Affirms the Use of ‘Secret’ Prior Art

Warner Norcross + Judd on

In a recent precedential opinion, the United States Court of Appeals for the Federal Circuit affirmed that a patent application constitutes prior art as of its filing date, not its publication date. In Lynk Labs. Inc. v....more

Haug Partners LLP

Uniloc v. Hulu - Federal Circuit Clash over Scope of PTAB Review of Substitute Claims

Haug Partners LLP on

WHAT DO WE KNOW? 1. On July 22, 2020, a sharply split Federal Circuit panel held that “[t]he PTAB correctly concluded that it is not limited by § 311(b) in its review of proposed substitute claims in an IPR, and that it...more

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