Merck KGaA et al v. Hopewell Pharma Ventures, Inc., et al.

  1. December 05, 2025

    Judge Won't Lift Stay On Hopewell Drug Launch

    A Delaware federal judge has shot down Hopewell Pharma Ventures' bid to lift a regulatory stay on approval of its planned generic version of German drugmaker Merck's blockbuster multiple sclerosis drug Mavenclad.

  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.