James E. Mrose, Of Counsel

Mr. Mrose is a former principal of Fish & Richardson, P.C. and has over twenty years of experience in patent prosecution before the U.S. Patent and Trademark Office, as well as international practice under the Patent Cooperation Treaty.


  • Harvard University, B.S. Electrical Engineering, 1986,
  • Boston University School of Law, J.D., 1989


Mr. Mrose’s patent prosecution expertise covers a wide variety of technological subject areas, including semiconductor devices and their manufacture, interventional and non-interventional medical device technologies, computers and software, analog and digital electronics, and wireless communications.

Mr. Mrose has counseled a vast array of clients over the course of decades, from small start-up companies to large enterprises. He has extensive expertise in due diligence investigations, right-to-use searches and opinions, and, where appropriate, advising on design-around options with respect to patents held by others.  Throughout his career Mr. Mrose has authored written opinions concerning non-infringement or invalidity of numerous patents.

Areas of Focus

  • Intellectual Property Law/Patent Prosecution. Specialties include:
    • Semiconductor Devices
    • Medical Devices
    • Electronics and Communication


  • Member, District of Columbia Bar
    • Intellectual Property Section


  • United States Patent & Trademark Office

Activities and Affiliations

  • American Intellectual Property Law Association
James E. Mrose

1625 K Street, N.W., Suite 550

Washington, D.C.  20006-1733

Tel:  202-628-5197

Fax:  202-737-3528