Merck Serono S.A. v. Hopewell Pharma Ventures, Inc.

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Case Number:

25-1210

Court:

Appellate - Federal Circuit

Nature of Suit:

- 

Companies

Sectors & Industries:

  1. December 01, 2025

    Merck Wants Fed. Circ. Redo On Decision Backing Axed IP

    German drugmaker Merck has asked the Federal Circuit to rethink its decision upholding the invalidation of claims in two patents on the blockbuster multiple sclerosis drug Mavenclad, saying the ruling creates a rule where inventors' work can later be used against them.

  2. October 30, 2025

    Fed. Circ. Explains Rule While Upholding Merck PTAB Loss

    The Federal Circuit sided with generics makers Thursday and upheld the Patent Trial and Appeal Board's invalidation of claims in two Merck KGaA patents on the blockbuster multiple sclerosis drug Mavenclad, while clarifying how to treat invalidity arguments that involve overlapping inventors.