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William E. Player

Mr. Player was patent counsel at Hercules Incorporated from 1984 - 1986 before becoming a member of Wegner, Cantor, Mueller & Player where he was a senior partner supervising patent practice in biotechnology and pharmaceuticals. Mr. Player handles all matters before the U.S. Patent and Trademark Office. His practice also includes patent appeals to the Court of Appeals for the Federal Circuit, intellectual property transfer, and business counseling. His technical areas of expertise include: biotechnology, including all aspects of recombinant DNA engineering and protein synthesis (advisor to U.S. PTO on implementing PATENTIN software) and its integration with immunology, medical diagnostics, and medical treatment; medical treatment and devices, including prostheses (e.g., joint replacement, intraocular, and extraocular lenses), pharmaceuticals, anti-cancer therapy, and diagnostic devices; organic and inorganic chemistry, including industrial processes; materials science, including optic fibers, glasses, ceramics, integrated circuits, and carbon-fibers; and mechanical devices. His articles on patent law appear in journals in the United States, Europe, and Japan.



Lynn, Massachusetts

Undergraduate Education

  • University of Massachusetts
    B.S., in Biology, magna cum laude
    senior thesis: genetics

Postgraduate Education

  • Boston College

Admitted to Bar for

  • Massachusetts
  • Massachusetts Supreme Judicial Court
  • Massachusetts Federal District Court
  • Registered to practice as a patent attorney before the Patent and Trademark Office
  • District of Columbia
  • U.S. Court of Appeals, Federal Circuit


  • The District of Columbia Bar
  • American Bar Association
  • American Intellectual Property Law Association (AIPLA)