In re: Xencor, Inc.

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Case overview

Case Number:

24-1870

Court:

Appellate - Federal Circuit

Nature of Suit:

- 

Companies

Sectors & Industries:

  1. March 13, 2025

    Fed. Circ. Dings Antibody Patent App For Lacking Description

    The Federal Circuit on Thursday affirmed a decision from top U.S. Patent and Trademark Office officials in a highly watched and technical dispute over an antibody patent application, concluding that preambles for so-called Jepson claims need sufficient written descriptions.

  2. December 04, 2024

    Fed. Circ. Judge Condemns 'Nonsense' Law In Antibody Fight

    U.S. Circuit Judge Todd Hughes called the Federal Circuit's case law on interpreting preambles in patent claims "nonsense" on Wednesday, expressing frustration as a panel tried to work through whether Xencor Inc.'s antibody patent application was too broad.

  3. May 31, 2024

    New Antibody IP Ruling Still Needs To Be Tested In Courts

    A May decision from top U.S. Patent and Trademark Office officials is giving some attorneys renewed hope that they'll be able to secure antibody patents, but they say the agency's ruling may not be enough to overcome courts that have been hostile toward these patents.