T.J. Clark

T.J. Clark


Suffolk University Law School

J.D., cum laude

United States Naval Academy
B.S., Physical Science

Communicating with Sunstein LLP through the website does not create an attorney-client relationship with the firm or any of our attorneys. Our decision as to whether we agree to represent a client involves consideration of a variety of factors, discussion with a prospective client, and, where appropriate, a written agreement.

Practice Areas


  • Suffolk University Law School

    J.D., cum laude

  • United States Naval Academy B.S., Physical Science


T.J.’s principal practice is patent prosecution and related Intellectual Property portfolio counseling in the areas of semiconductor processing, electrical circuits and electro-mechanical systems, software, web based business methods, and biomedical devices.

He has broad experience in all stages of the patent litigation process, from pre-suit investigation through appeal. He has litigated cases in the U.S. District Courts, the U.S. International Trade Commission and the Federal Circuit.

Before his legal career, T.J. worked at several Massachusetts-based semiconductor capital equipment companies in various engineering and technical marketing positions. His semiconductor wafer processing experience includes dark field metrology, thermal processing, and ion implantation. He is also a certified C# .NET solutions developer, with experience in the design and implementation of web enabled front office software solutions. T.J. also served as a Surface Warfare Officer in the U.S. Navy, where he gained extensive experience in the practical application of mechanical, steam, and electrical engineering.

Prior to joining Sunstein, T.J. founded Hunter Clark, an intellectual property law firm, and also was a member of the Intellectual Property Section at the law firm Mintz, Levin, Cohn, Ferris Glovsky & Popeo P.C.

T.J. is admitted to practice in Massachusetts and is registered to practice before the U.S. Patent and Trademark Office.


  • Recognized in Massachusetts Super Lawyers®, part of Thomson Reuters, in 2013-2014 and 2023.
    • Recognized in Massachusetts Rising Stars, 2011-2012

We use cookies to improve your site experience, distinguish you from other users and support the marketing of our services. These cookies may store your personal information. By continuing to use our website, you agree to the storing of cookies on your device. For more information, please visit our Privacy Notice.

Subscribe to our Newsletters

Subscribe to: