Young J. Park is a partner in the Litigation practice of Paul Hastings and is based in the firm’s New York office. His practice focuses on counseling clients and litigating high-stakes intellectual property matters involving products with annual sales routinely in the hundreds of millions to billions of dollars. Mr. Park has extensive experience in all aspects of trial preparation, including examining and cross-examining trial witnesses. He also has considerable experience handling patent appeals before the U.S. Court of Appeals for the Federal Circuit, including oral argument. He also has experience handling multiple post-grant procedures in the U.S. Patent and Trademark Office, including oral argument in the final hearing. Mr. Park has been involved in cases with a wide variety of life science products, including pharmaceuticals, cardiovascular stents, hip implants, abdominal trocars, RF ablation devices, and cardiac defibrillators.


  • The Legal 500, Intellectual Property - Patents: Litigation (Full Coverage) (2021)


  • The George Washington University Law School, J.D., 2000
  • Johns Hopkins University, M.S., 1998
  • Johns Hopkins University, B.S., 1995
  • He is also admitted to practice before the United States Patent and Trademark Office.


  • Boston Scientific Corporation in a patent infringement jury trial involving 2.25 mm drug-eluting stents, obtaining over $20 million in lost profits damages and double damages for willful infringement against a major competitor. Mr. Park also handled the appeal as lead attorney, obtaining a full affirmance of both the damages and willfulness judgments.
  • Boston Scientific Corporation in a binding patent infringement arbitration, obtaining a non-infringement decision in a case where the competitor sought hundreds of millions of dollars in damages based on sales of Boston Scientific’s TAXUS LIBERTÉ stent.
  • Zimmer Biomet Holdings, Inc. in an Inter Partes review involving a patent currently asserted against Zimmer’s TM line of hip implants, obtaining ruling that all of the challenged claims were unpatentable. Mr. Park argued for Zimmer in the final hearing (currently on appeal).
  • Helsinn Healthcare S.A. in a Hatch-Waxman action involving its ALOXI antiemetic drug product, obtaining a favorable judgment of infringement and no invalidity of the asserted patents following a bench trial (currently on appeal). Mr. Park examined and cross-examined trial witnesses.
  • Helsinn Healthcare S.A. in two Post-Grant Review challenges involving a patent covering ALOXI, obtaining favorable ruling not to institute trial based on grounds in either challenge.
  • Eisai Co., Ltd. in a Hatch-Waxman action involving its BANZEL, an antiepileptic drug product.
  • Covidien in a patent infringement jury trial involving abdominal trocar, obtaining a judgment of patent infringement and $5 million in damages against a major competitor.
  • Covidien in a patent infringement action involving abdominal trocars, obtaining a dismissal of all claims against Covidien’s accused abdominal trocars in suit.


    • Served as a judicial law clerk to the Honorable Alan D. Lourie of the United States Court of Appeals for the Federal Circuit.
    • Member of the State Bar of New York, and is admitted to practice in the United States Court of Appeals for the Federal Circuit and the United States District Court for the Southern District of New York.

    Practice Areas


    Intellectual Property

    Life Sciences and Healthcare

    ITC Section 337 Investigations

    Patent Office

    Appellate Litigation

    Patent Litigation





    United States Patent & Trademark Office

    New York Bar


    The George Washington University Law School, J.D. 2000

    Johns Hopkins University, M.S. 1998

    Johns Hopkins University, B.S. 1995

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