Defendant
1 case as defendant.
Amgen Inc. is an American multinational biopharmaceutical company headquartered in Thousand Oaks, California. Founded on April 8, 1980, originally as Applied Molecular Genetics Inc., it became a public company in 1983 and is traded on Nasdaq under the ticker AMGN, forming a component of the Nasdaq-100, DJIA, and S&P 500 indices. As of December 31, 2025, Amgen reported approximately 31,500 employees and total revenues of $36.8 billion for the full year 2025.
The company discovers, develops, manufactures, and delivers innovative human therapeutics to treat serious illnesses, operating in a single business segment focused on human therapeutics. Amgen's product portfolio addresses various therapeutic areas, including oncology, inflammation, bone diseases, cardiovascular conditions, kidney disease, and rare diseases. Key products include Prolia and Xgeva for bone diseases, Enbrel for autoimmune diseases, Repatha for hyperlipidemia, and various therapies for cancer and anemia. Amgen has a global commercial presence, reaching patients in approximately 100 countries worldwide.
In terms of patent litigation, Amgen Inc. exhibits the posture of an operating company defending its products. The company has been involved in one tracked patent litigation case, in which it appears solely as a defendant. This aligns with its role as a developer and manufacturer of biopharmaceutical products.
The notable tracked case, Regeneron Pharmaceuticals, Inc. v. Amgen Inc., commenced on January 10, 2024. In this litigation, Regeneron Pharmaceuticals, Inc. sued Amgen Inc. for alleged infringement related to Amgen's aflibercept biosimilar, PAVBLU®. The suit involves a dispute over a patent that was issued after Amgen had launched its product. Amgen responded with counterclaims, including allegations of antitrust violations. The case has moved through the U.S. District Court for the Central District of California, subsequently transferred to the U.S. District Court for the Northern District of West Virginia, and has potential appeals to the U.S. Court of Appeals for the Federal Circuit.
Regeneron sued Amgen for infringement of US Patent 11084865. The district court denied Regeneron's preliminary injunction request, a decision upheld by the Federal Circuit (CAFC Appeal No. 24-2351), leading Amgen to launch its biosimilar at-risk.