News & Analysis as of

Pfizer Prior Art Appeals

Venable LLP

Federal Circuit Affirms PTAB’s Unpatentability Findings in Gene Therapy Hemgenix® IPRs

Venable LLP on

On May 22, 2025, the CAFC affirmed the PTAB’s (Board) Final Written Decisions in Pfizer’s IPR2021-00925 and IPR2021-00926 finding all challenged claims of uniQure’s U.S. Patent No. 9,982,248 (“the ’248 patent”) unpatentable...more

Knobbe Martens

Routine Optimization of Result-Effective Variable Can Bridge Gaps in Prior Art

Knobbe Martens on

PFIZER INC. v. SANOFI PASTEUR INC. - Before Lourie, Bryson, and Stark.  Appeal from the Patent Trial and Appeal Board....more

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