Immunex Corporation v. Sanofi-Aventis U.S. LLC

  1. October 13, 2020

    Fed. Circ. Backs Sanofi, Regeneron PTAB Win Over Amgen

    The Federal Circuit on Tuesday upheld a Patent Trial and Appeal Board decision invalidating an Amgen unit's patent on treating inflammatory disorders, in a win for Sanofi and Regeneron, whose eczema and asthma treatment Dupixent was accused of infringement.

  2. August 05, 2020

    Immunex Faces Skeptical Fed. Circ. In Antibody Patent Fight

    A Federal Circuit panel appeared skeptical Wednesday that the Patent Trial and Appeal Board ignored vital evidence in construing a key claim term to invalidate an Immunex antibody patent at the behest of Sanofi-Aventis, suggesting that evidence supports the board's claim construction.

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