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Inter Partes Review (IPR) Proceeding Disclaimers Prior Art

DLA Piper

What is a “Clear and Unmistakable” Prosecution History Disclaimer?

DLA Piper on

The Federal Circuit’s March 21, 2025 decision in Maquet Cardiovascular LLC v. Abiomed Inc. et al. (No. 2023-2045) and the recent Patent Trial and Appeal Board (PTAB) Delegated Rehearing Panel decision in SynAffix B.V. v....more

Haug Partners LLP

Narrowing the Disclaimer Doctrine: Federal Circuit Cabins the Reach of Disclaimers in the IPR Context

Haug Partners LLP on

OVERVIEW - The United States Court of Appeals for the Federal Circuit recently affirmed three Inter Partes Review (IPR) final written decisions of the U.S. Patent Trial and Appeal Board (“the Board”) where the Board...more

Akin Gump Strauss Hauer & Feld LLP

Eastern District of Texas Judge Holds that Statements Made to PTAB Constitute Disclaimer

On September 9, 2017, an Eastern District of Texas magistrate judge issued a report and recommendation holding that a plaintiff was estopped from asserting its patent infringement claims because statements made in response to...more

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