Legal Opinion

Actelion Pharmaceuticals Ltd v. Mylan Pharmaceuticals Inc.

Court of Appeals for the Federal Circuit

Decided May 13, 2026No. 24-1641Published

1Opinion of the Court

Case: 24-1641 Document: 54 Page: 1 Filed: 05/13/2026 United States Court of Appeals for the Federal Circuit ______________________ ACTELION PHARMACEUTICALS LTD, Plaintiff-Appellant v. MYLAN PHARMACEUTICALS INC., Defendant-Appellee ______________________ 2024-1641 ______________________ Appeal from the United States District Court for the Northern District of West Virginia in No. 1:20-cv-00110- JPB, Judge John Preston Bailey. ______________________ Decided: May 13, 2026 ______________________ LISA GLASSER, Irell & Manella LLP, Newport Beach, CA, argued for plaintiff-appellant. Also represented…

2Cases cited17 opinions

  1. Edward H. Phillips v. Awh Corporation, Hopeman Brothers, Inc., and Lofton Corporation, Defendants-CrossCourt of Appeals for the Federal Circuit · 2006
  2. Vitronics Corporation v. Conceptronic, Inc.Court of Appeals for the Federal Circuit · 1996
  3. Festo Corp. v. Shoketsu Kinzoku Kogyo Kabushiki Co.Supreme Court of the United States · 2002
  4. Festo Corporation v. Shoketsu Kinzoku Kogyo Kabushiki Co., Ltd., A/K/A Smc Corporation, and Smc Pneumatics, Inc.Court of Appeals for the Federal Circuit · 2003
  5. Pfizer, Inc. v. Teva Pharmaceuticals Usa, Inc.Court of Appeals for the Federal Circuit · 2005

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