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Chen, Angus

Angus Chen, Ph.D.

Direct Tel: +1 212 849 7338, Direct Fax: +1 212 849 7100
New York
Tel: +1 212 849 7000 Fax: +1 212 849 7100

Angus Chen, Ph.D. draws on his legal and scientific background to strategically navigate the intersection of law and science. Dr. Chen’s practice leverages his experience as lead in-house Patent Counsel for a specialty pharmaceutical company and brings a business perspective to his practice. Dr. Chen’s practice uniquely integrates the pharmaceutical and biologic patent and regulatory laws. Dr. Chen has extensive experience representing pharmaceutical and biopharmaceutical companies in high stakes trials, PTAB proceedings and appeals, and advising clients with respect to patent and regulatory strategies, lifecycle management, and settlement agreements. IAM Patent 1000 wrote, as part of the firm’s pharmaceutical core, he is “a sure bet when only a win will do,” and that "Chen is highly valued for his technical dexterity and is also a 'thoughtful practitioner with a nice, understated but very persuasive presentation style.'"

  • AbCellera
  • Baxalta
  • Chiesi
  • Medicure
  • Shire
  • Takeda
  • The Medicines Company
  • TherapeuticsMD
  • Vizgen
  • Shareholder Representative Services LLC v. Alexion Pharmaceuticals, Inc., 2020-1069 (Del. Ch.)
  • Genentech, Inc. v. Millennium Pharmaceuticals, Inc., 23-924 (Cal. Sup. Ct.)
  • 10x Genomics, Inc. et al. v. Vizgen, Inc., 22-595 (D. Del.)
  • ICLUSIG®: Takeda Pharmaceuticals America, Inc. et al. v. Apotex, Inc., 21-12998 (D.N.J.)
  • ICLUSIG®: Takeda Pharmaceuticals America, Inc. et al. v. Teva Pharmaceuticals, Inc. et al., 22-7454 (D.N.J.)
  • AbCellera Biologics Inc. v. Berkeley Lights, Inc., 20-931, 20-1116, 20-1230 (D. Del.)
  • BIJUVA®: TherapeuticsMD, Inc. v. Amneal Pharmaceuticals, Inc., 20-5256, 20-14933 (D.N.J.)
  • KENGREAL®: Chiesi USA, Inc. et al. v. MSN Pharmaceuticals Inc. et al., 19-18564 (D.N.J.)
  • KENGREAL®: Chiesi USA, Inc. et al. v. Gland Pharma Ltd., 19-18565 (D.N.J.)
  • CLEVIPREX®: Chiesi USA, Inc. et al. v. Aurobindo Pharma USA, Inc. et al. 19-18756 (D.N.J.)
  • VYVANSE®: Shire LLC v. Amneal Pharmaceuticals, LLC, Actavis Elizabeth LLC, Johnson Matthey Inc., Mylan Inc., Roxane Laboratories, Inc., Sandoz Inc., 2014-1736 (Fed. Cir.), 11-3781 (D.N.J.)
  • JIVI®: Baxalta Inc. and Nektar Therapeutics v. Bayer Healthcare LLC, 17-1316 (D. Del.)
  • ADYNOVATE®: Bayer Healthcare LLC v. Baxalta Inc. and Nektar Therapeutics, 19-2418 (Fed. Cir.), 16-1122 (D. Del.)
  • AGGRASTAT®: Medicure Inc. v. Gland Pharma Ltd., 18-16246 (D.N.J.)
  • HAEGARDA®: CSL Behring GMBH et al. v. Shire Viropharma Inc., IPR2017-01512, IPR2019-00459
  • BETHKIS®: Chiesi USA, Inc. et al. v. Teva Pharmaceuticals USA, Inc., 17-1772 (D. Del.)
  • LIALDA®: Coalition for Affordable Drugs II LLC v. Cosmo Technologies Ltd., IPR2015-00988
  • ANGIOMAX®: The Medicines Company v. Teva Parenteral Medicines, Inc., APP Pharmaceuticals, LLC, Hospira Inc. et al., 2014-1469 (Fed. Cir.) (en banc), 09-750 (D. Del.)
  • ANGIOMAX®: The Medicines Company v. Mylan Inc. et al., 11-1285 (N.D. Ill.)
  • ANGIOMAX®: The Medicines Company v. Dr. Reddy’s Laboratories Ltd., Sun Pharma Global FZE, et al., 11-2456 (D.N.J.)
  • CARDENE® I.V. PREMIXED INJECTION: Chiesi USA, Inc. et al. v. Sandoz Inc. et al., 13-5723 (D.N.J.)
  • CARDENE® I.V. PREMIXED INJECTION: Sandoz Inc. v. EKR Therapeutics, LLC, IPR2015-00005, IPR2015-00006, IPR2015-00007, and IPR2015- 00008
  • CARDENE® I.V. PREMIXED INJECTION: Cornerstone Therapeutics Inc. et al. v. Exela Pharma Sciences LLC et al., 13-1275 (D. Del.)
  • CLOBEX® SPRAY: Galderma Laboratories, L.P., et al. v. Paddock Laboratories, Inc., 09-002 (N.D. Tex.)
  • SOLODYN®: Medicis Pharmaceutical Corporation v. Ranbaxy Inc. et al., 09-435 (D. Del.)
  • Fordham University
    (J.D., 2005)
  • Mt. Sinai School of Medicine
    (Ph.D. & M. Phil. Biochemistry, 2002)
  • State University of New York at Geneseo
    (B.S. Biology, 1997)
  • The State Bar of New York
  • United States District Court:
    • Southern District of New York
  • United States Court of Appeals:
    • Federal Circuit
  • United States Patent and Trademark Office
  • Haug Partners LLP (formerly Frommer Lawrence & Haug LLP):
    • 2002-2005, 2007-2020 (Partner 2010-2020)
  • IAM Patent 1000, 2017 to present
  • Patent Star, Managing IP: IP Stars 2023 and 2024
  • Benchmark Litigation Future Stars, 2023 and 2024
  • Best of The Best, Lawyers of Distinction 2019
  • ACQ Global Awards 2015 - Life Sciences Lawyer of the Year
  • SuperLawyers® 2018 to present
  • SuperLawyers® Rising Star 2011-2016
  • Member, Federal Circuit Bar Association
  • Member, New York Intellectual Property Law Association
  • Member, New York State Bar Association