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Thomas J. Durling

Thomas J. Durling has more than 35 years experience handling business and intellectual property issues, with a focus on patent and trademark procurement, merger and acquisition due diligence, business agreement preparation and negotiation, intellectual property litigation and client counseling.

A registered patent attorney, Mr. Durling represents clients in patent matters before the United States Patent and Trademark Office, as well as manages their international portfolios and intellectual property-related litigation. Mr. Durling concentrates his patent practice in the mechanical engineering field, with direct experience in a number of technical areas, including large industrial equipment, flow measurement and measuring equipment, mobility vehicles, bicycle design and manufacturing, industrial and consumer packaging, molded plastic components, medical devices, sporting goods, printing equipment and wastewater treatment. Mr. Durling helps clients prepare and prosecute patent applications; performs patent infringement analysis, validity studies and right to use studies; and negotiates and prepares licenses and other agreements for clients across a wide range of industries and applications.

Mr. Durling represents and advises clients on a variety of business matters, including negotiation and preparation of manufacturing and supply agreements, executive and technical employment agreements, and marketing agreements. He also has experience counseling clients on copyright, trademark, trade secret and unfair competition issues.

Reported Decisions

  • Golden Valley Microwave Foods Inc. v. Weaver Popcorn Co. Inc., 24 U.S.P.Q.2d 1801 (N.D. Ind.), aff’d, 11F.3d 1072; (Fed. Cir.) (w/o opinion), cert. denied, 511 U.S. 1128
  • Farberware Inc. v. Alternative Pioneering Systems, Inc., 19 U.S.P.Q.2d 1079 (S.D.N.Y.): 28 U.S.P.Q.2d 1879 (S.D.N.Y.)
  • New Jersey Mach. Inc. v. Alford Industries, Inc., 21 U.S.P.Q.2d 2033 (D.N.J.); aff’d, 983 F.2d 1087 (Fed. Cir.) (w/o opinion)
  • Diamond-Chase Co. v. Stretch Devices Inc., 16 U.S.P.Q.2d 1568 (C.D.Cal.); aff’d, 923 F.2d 871 (Fed. Cir.) (w/o opinion)
  • Micro Motion, Inc. v. Kane Steel Co., Inc., 849 F.2d 1318 (Fed. Cir.)
  • Pennwalt Corp. v. Bird Inc., 5 U.S. P.Q. 2d 1817 (D. Mass.)
  • Rated AV® Preeminent™ by Martindale-Hubbell
  • Selected to Best Lawyers in America® in the area of Patent Law, 2016 - 2024
  • Named a Pennsylvania "Super Lawyer" in the area of Intellectual Property Law, 2016 - 2020, by Thomson Reuters, publishers of Pennsylvania Super Lawyers

A description of the standard or methodology on which the accolades are based can be found here. No aspect of this advertisement has been approved by the Supreme Court of New Jersey. 

  • Federal Circuit Bar Association
  • International Trademark Law Association
  • American Intellectual Property Law Association
  • Pennsylvania Bar Association
  • Philadelphia Intellectual Property Law Association
  • Villanova University - College of Engineering Advisory Board
  • Team Flaster Greenberg, American Cancer Society Philadelphia Bike-A-Thon
    • Captain
  • St. Alphonsus Catholic Youth Sports Organization
    • Past president




  • Pennsylvania
  • U.S. Patent and Trademark Office
  • U.S. District Court for the Eastern District of Pennsylvania
  • U.S. Court of Appeals for the Federal Circuit


  • Widener University School of Law (The Delaware Law School), J.D.
  • Villanova University, B.S., Mechanical Engineering
    • Pi Tau Sigma (National Mechanical Engineering Honor Fraternity)

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