Sean M. McCarthy

McCarthy Sean

Sean McCarthy focuses his practice on patent litigation and USPTO contested proceedings, with an emphasis on the mechanical and electrical-related arts. Sean's experience includes preparing freedom-to-operate opinions and patent prosecution. He is also an adjunct professor in the Mechanical Engineering Department at Manhattan College teaching Legal Aspects of Engineering to senior and graduate engineering students. Legal Aspects of Engineering is an interdepartmental course covering basic legal doctrines, professional-client relationship, design, and practice problems. Topics include the American judicial system, contracts, quasi-contracts, agency, licensing, negligence and products liability, client obligations, construction process, copyrights, patents, and trademarks.

While in law school, Sean participated in the Brooklyn Law Incubator & Policy Clinic, where he assisted entrepreneurs with various copyright, patent, and trademark matters. Sean also served as a student intern to the Honorable Denis R. Hurley of the United States District Court for the Eastern District of New York and was an associate managing editor of the Brooklyn Journal of International Law.


Representative Clients

  • Canon
  • Geotab Inc.
  • Koninklijke Philips N.V.




  • J.D. magna cum laude Brooklyn Law School 2013
    • Student intern, Honorable Denis R. Hurley, United States District Court for the Eastern District of New York
    • Associate managing editor, Brooklyn Journal of International Law
  • M.S. Mechanical Engineering Manhattan College 2010
    • Valedictorian
  • B.S. Mechanical Engineering magna cum laude Manhattan College 2009

Bar Admissions

  • U.S. Patent and Trademark Office
  • New York

Professional Memberships and Activities

  • Adjunct professor, Legal Aspects of Engineering, Manhattan College


  • The Best Lawyers in America, Ones to Watch, 2023 – 2024