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Jason A. Fitzsimmons



Jason A. Fitzsimmons

Jason A. Fitzsimmons is a director in Sterne Kessler’s Mechanical & Design Practice Group and a member of the firm’s PTAB Leadership Council. Jason specializes in conducting complex post-grant proceedings at the USPTO, obtaining patent protection for cutting edge technologies, and providing opinions of counsel.

In 2021, 2020, 2019, and 2018, Jason was selected to the Washington DC "Rising Stars" list in Intellectual Property by Super Lawyers.

Jason is well-versed with every stage of inter partes reviews (IPRs)—from pre-institution strategies through argument at oral hearing. He also has experience in ex parte reexamination, inter partes reexamination, and derivation proceedings. He is familiar with the challenges faced by both patent owners and petitioners in these complex proceedings. Jason is a contributing author of Patent Office Litigation, Second Edition, published in 2017. The book provides a comprehensive exploration of patent office litigation proceedings, including how the proceedings interact with other aspects of patent procurement and enforcement, while delivering practical analysis and advice.

Jason also has broad experience in preparing and prosecuting U.S. and foreign patent applications and in researching and preparing validity, infringement, and patentability opinions. He is a trusted strategic advisor to clients. Jason’s primary areas of technical experience include: sporting goods, medical devices, physiological sensors, communications systems, consumer electronics, automotive systems, industrial equipment, textiles and apparel, optical devices, image collection and processing, and clean energy technologies.

At The George Washington University Law School, Jason was the student editor-in-chief of the American Intellectual Property Law Association (AIPLA) Quarterly Journal, a member of the Moot Court Board Executive Committee, and vice president of the Student Intellectual Property Law Association (SIPLA).

Prior to law school, Jason gained valuable industry experience as an engineer for a defense contractor. He managed a project to develop innovative, lightweight armor solutions for combat vehicles and oversaw ballistic testing. Additionally, he worked on a project to design a system for remote detection of nuclear materials by overcoming natural phenomena such as particle scattering and temporal detection delays.

Jason earned his B.S. in physics-engineering, magna cum laude, from Washington & Lee University.

Technical Publications

  • Jeffrey K. Mills, Jason A. Fitzsimmons, and Kevin Rodkey, "Protecting Nanotechnology Inventions: Prosecuting in an Unpredictable World," 7 Nanotechnology L. & Bus. 223 (2010).


  • Super Lawyers, "Rising Star - Washington DC" (2021 - 2018)

Thought Leadership

Past Events

Contact Information

Phone Number


The George Washington University Law School
Washington & Lee University
magna cum laude


District of Columbia
U.S. Court of Appeals for the Federal Circuit
United States Patent & Trademark Office


  • PTAB Bar Association
  • Association of the United States Army