Company · Pharmaceuticals & Biotechnology

Amgen Inc

Federal civil lawsuits naming Amgen Inc, a Pharmaceuticals & Biotechnology company.

Public CompanyPharmaceuticals & Biotechnology

Ticker: Nasdaq: AMGN
Business: Biological Products, (No Diagnostic Substances)
Headquarters: Thousand Oaks, CA
Incorporated in: Delaware
SEC CIK: 318154

Amgen Inc is a public company in Biological Products, (No Diagnostic Substances), based in Thousand Oaks, CA (traded on Nasdaq as AMGN, incorporated in Delaware). It appears in 229 federal civil lawsuits in this index, most often as a plaintiff (124 of 229). These cases are most often Patent and Patent - ANDA matters, filed between 1992 and 2025, most frequently in District Court, D. Delaware. The most common causes of action are Patent Infringement, Antitrust, and Personal Injury. Frequent opposing parties include Schering Corporation, Zydus Pharmaceuticals (USA) Inc, and Sandoz Inc.

229

Lawsuits

105

As Defendant

124

As Plaintiff

Open

210

Terminated

1992–2025

Span

13 mo

Median Duration

6.7 cases/yrPredominantly plaintiff · 54%Activity steady

Cases by State

PR · 1

Open Cases Over Time

1992peak 36 open2025

Case Types Over Time

19922025

PatentPatent - ANDAFederal Tax / Statutory ActionsContractAntitrust

Filings by Year

19922025

Case Types filter →

Patent84

Patent - ANDA44

Federal Tax / Statutory Actions30

Contract18

Antitrust17

Civil Rights13

Where Filed filter →

Frequent Opposing Parties

229 Cases — Newest First

Amgen Inc v. Amneal Pharmaceuticals, Inc

Patent Open District Court, D. New JerseyNo. 1:25-cv-17278Filed 11/06/2025
Amgen Inc v. Dr. Reddy'S Laboratories Ltd

Patent Open District Court, D. New JerseyNo. 1:25-cv-17277Filed 11/06/2025
Amgen Inc v. Mizner

Other Civil Open District Court, D. ColoradoNo. 1:25-cv-03452Filed 10/30/2025
Regeneron Pharmaceuticals, Inc v. Amgen Inc

Patent Open District Court, N.D. West VirginiaNo. 1:25-cv-00074Filed 07/31/2025
Amgen Inc v. Biocon Biologics, Inc

Patent Open District Court, D. New JerseyNo. 1:25-cv-13358Filed 07/16/2025
Amgen Inc v. Biocon Biologics, Inc

Patent Open District Court, D. MassachusettsNo. 1:25-cv-11867Filed 06/30/2025
Amgen Inc v. Shanghai Henlius Biotech, Inc

Patent Open District Court, D. New JerseyNo. 1:25-cv-12160Filed 06/25/2025
Amgen Inc v. Hikma Pharmaceuticals USA Inc

Patent Open District Court, D. New JerseyNo. 1:25-cv-12152Filed 06/25/2025
Sandoz Inc v. Amgen Inc

Antitrust Open District Court, E.D. VirginiaNo. 2:25-cv-00218Filed 04/11/2025
Rampal v. Amgen, Inc

Civil Rights Terminated District Court, D. ConnecticutNo. 3:25-cv-00459Filed 03/20/2025
Amgen Inc v. Fresenius Kabi USA, LLC

Patent Terminated District Court, D. New JerseyNo. 1:25-cv-01080Filed 02/07/2025
Amgen Inc v. Xavier Becerra

Federal Tax / Statutory Actions Open District Court, District of ColumbiaNo. 1:24-cv-03571Filed 12/20/2024
Amgen, Inc v. CareFirst of Maryland, Inc

Antitrust Terminated District Court, E.D. VirginiaNo. 2:24-mc-00027Filed 12/17/2024
CareFirst of Maryland, Inc v. Amgen, Inc

Federal Tax / Statutory Actions Terminated District Court, E.D. VirginiaNo. 2:24-mc-00026Filed 12/12/2024
Amgen Inc v. Accord Biopharma, Inc

Patent Terminated District Court, E.D. North CarolinaNo. 5:24-cv-00642Filed 11/13/2024
Amgen Inc v. Fresenius Kabi USA, LLC

Patent Terminated District Court, N.D. IllinoisNo. 1:24-cv-09555Filed 10/04/2024
Amgen Inc v. Samsung Bioepis Co., Ltd

Patent Open District Court, D. New JerseyNo. 1:24-cv-08417Filed 08/12/2024
Carefirst of Maryland, Inc v. Amgen, Inc

Antitrust Open District Court, E.D. VirginiaNo. 2:24-cv-00484Filed 08/06/2024
Carefirst of Maryland, Inc v. Amgen, Inc

Antitrust Terminated District Court, E.D. VirginiaNo. 2:24-cv-00471Filed 08/01/2024
Amgen Inc v. Celltrion, Inc

Patent Terminated District Court, D. New JerseyNo. 1:24-cv-06497Filed 05/28/2024
Regeneron Pharmaceuticals, Inc v. Amgen, Inc

Patent Open District Court, N.D. West VirginiaNo. 1:24-cv-00039Filed 04/16/2024
Amgen Inc v. Colorado Prescription Drug Affordability Review Board

Other Civil Terminated District Court, D. ColoradoNo. 1:24-cv-00810Filed 03/22/2024
Federal Trade Commission v. Amgen Inc

Antitrust Terminated District Court, N.D. IllinoisNo. 1:23-cv-03053Filed 05/16/2023
Amgen Inc v. Sandoz Inc

Patent Terminated District Court, D. New JerseyNo. 1:23-cv-02406Filed 05/01/2023
Amgen Inc v. Sandoz Inc

Patent Open District Court, D. New JerseyNo. 2:23-cv-02406Filed 05/01/2023
OssiFi-Mab LLC v. Amgen Inc

Patent Open District Court, D. MassachusettsNo. 1:23-cv-10861Filed 04/21/2023
Amgen Inc v. Msn Laboratories Private Limited

Patent - ANDA Terminated District Court, D. DelawareNo. 1:23-cv-00031Filed 01/12/2023
Amgen Inc v. U.S. Department of Health and Human Services

Federal Tax / Statutory Actions Open District Court, District of ColumbiaNo. 1:22-cv-03763Filed 12/19/2022
Janssen Biotech, Inc v. Amgen Inc

Patent Terminated District Court, D. DelawareNo. 1:22-cv-01549Filed 11/29/2022
Regeneron Pharmaceuticals, Inc v. Amgen Inc

Antitrust Open District Court, D. DelawareNo. 1:22-cv-00697Filed 05/27/2022
Amgen Inc v. Usv Private Limited

Patent - ANDA Terminated District Court, D. DelawareNo. 1:22-cv-00387Filed 03/25/2022
Amgen Inc v. Aurobindo Pharma Limited

Patent - ANDA Terminated District Court, D. DelawareNo. 1:22-cv-00227Filed 02/22/2022
Amgen Inc v. Aurobindo Pharma Limited

Patent - ANDA Terminated District Court, D. DelawareNo. 1:22-cv-00037Filed 01/10/2022
Amgen Inc v. Msn Laboratories Private Limited

Patent - ANDA Terminated District Court, D. DelawareNo. 1:21-cv-00712Filed 05/19/2021
Amgen Inc v. Msn Laboratories Private Limited

Patent - ANDA Terminated District Court, D. DelawareNo. 1:21-cv-00662Filed 05/06/2021
Amgen Inc v. Alembic Pharmaceuticals Limited

Patent - ANDA Terminated District Court, D. DelawareNo. 1:21-cv-00061Filed 01/20/2021
Amgen Inc v. Hospira, Inc

Patent Terminated District Court, D. DelawareNo. 1:20-cv-00561Filed 04/24/2020
Msp Recovery Claims Series LLC v. Amgen, Inc

Antitrust Terminated District Court, D. DelawareNo. 1:20-cv-00345Filed 03/09/2020
Amgen Inc v. Hospira, Inc

Patent Terminated District Court, D. DelawareNo. 1:20-cv-00201Filed 02/11/2020
Msp Recovery Claims Series LLC v. Amgen, Inc

Antitrust Terminated District Court, S.D. FloridaNo. 1:20-cv-20549Filed 02/06/2020
Amgen Inc v. Msn Pharmaceuticals, Inc

Patent - ANDA Terminated District Court, D. DelawareNo. 1:20-cv-00137Filed 01/29/2020
Amgen Inc v. Annora Pharma Private Limited

Patent - ANDA Terminated District Court, D. DelawareNo. 1:20-cv-00122Filed 01/24/2020
Amgen Inc v. Centaur Pharmaceuticals Private Ltd

Patent - ANDA Terminated District Court, D. DelawareNo. 1:20-cv-00123Filed 01/24/2020
Amgen Inc v. Bionpharma, Inc

Patent - ANDA Terminated District Court, D. DelawareNo. 1:20-cv-00105Filed 01/23/2020
Amgen Inc v. Zydus Pharmaceuticals (USA) Inc

Patent - ANDA Terminated District Court, D. New JerseyNo. 3:20-cv-00678Filed 01/21/2020
Amgen Inc v. Zydus Pharmaceuticals (USA) Inc

Patent - ANDA Terminated District Court, D. DelawareNo. 1:20-cv-00075Filed 01/17/2020
Amgen Inc v. Torrent Pharma Inc

Patent - ANDA Terminated District Court, D. DelawareNo. 1:20-cv-00065Filed 01/16/2020
Amgen Inc v. Zydus Pharmaceuticals (USA) Inc

Patent - ANDA Terminated District Court, D. New JerseyNo. 3:19-cv-18806Filed 10/08/2019
Amgen Inc v. The Acme Laboratories Ltd

Patent - ANDA Terminated District Court, D. DelawareNo. 1:19-cv-01702Filed 09/11/2019
Kph Healthcare Services, Inc v. Amgen, Inc

Antitrust Open District Court, D. DelawareNo. 1:19-cv-01460Filed 08/05/2019

Showing 1–50 of 229