Joel R. Leeman

Joel R. Leeman


(P) 617-443-9292, ext 222

(F) 617-443-0004

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Brandeis University, B.A., magna cum laude, M.A.

Harvard Law School, J.D.

Joel R. Leeman

Joel Leeman is a partner at Sunstein, and devotes his practice to the litigation of patent and trademark disputes. He has extensive experience in handling technology-licensing disputes, as well as trade secret and general commercial litigation. Joel focuses on helping our clients resolve disputes efficiently— through litigation and other methods—and in a manner that promotes their business objectives. He advises clients on strategies for minimizing litigation risks.


  • Has handled numerous patent and trade secret litigations covering a wide range of technologies, including: pharmaceuticals, biological/chemical assay methods and devices, non-invasive thermometry, x-ray inspection systems, disambiguation/clustering software, machine learning image analysis, fire-detector mapping software, caching software, chip technology, fluorescent lighting, mobile payment processing, military training simulators, data security, and fruit processing methods.
  • Possesses special expertise in the economic analysis of patent infringement cases.
  • Has represented clients in domestic and international contract disputes, including licenses, commission arrangements, collaboration agreements, confidentiality clauses, inventors’ agreements, and indemnities.
  • Has wide experience in all aspects of trademark and copyright protection and litigation, representing firms in courts and before the Patent and Trademark Office and the Trademark Trial and Appeal Board.
  • Has handled trade dress disputes involving electric fans, cellphone cases, user interfaces, musical instruments, food packaging, and athletic shoes, among other things.
  • Litigated novel issues on behalf of a web-hosting company, including the extent of long-arm jurisdiction over an out-of-state operator and remedies available for unfair business practices arising from conduct on the Internet.
  • Successfully represented a California company in a dispute, alleging misappropriation of proprietary software, that established a Massachusetts standard for a plaintiff’s duty to disclose his trade secrets at the outset of pretrial  discovery.
  • Joel has co-written a book on copyright enforcement.
  • Has spoken on panels sponsored by bar associations on non-competition disputes, trade secret law, and international arbitration.

Professional and Community Involvement

  • Active participant in early-education literacy programs in Boston public schools.
  • Has played in a softball double-header every Sunday of the spring, summer and fall for over 30 years.
  • Formerly an instructor of advanced Hebrew language at Brandeis while pursuing his graduate studies.


  • Joel was named to the Super Lawyers® list in the practice area of intellectual property 2004-2017 in Massachusetts, a list limited to the top 5 percent of attorneys in each region.  The attorneys featured in Super Lawyers were selected by their peers in an extensive nomination and polling process conducted by the research team at Super Lawyers, a service of Thomson Reuters and seen in a special advertising section in Boston magazine.
  • Named to the 2016 New England Super Lawyers Top 100 List, a listing of 100 lawyers who received the highest point totals in the Massachusetts nomination, research and blue ribbon review process.

Recent Publications

Bar and Court Admissions

  • Admitted to the Massachusetts bar, as well as the bars of the U.S. Supreme Court, the First Circuit Court of Appeal, the Federal Circuit and the U.S. District Court for the District of Massachusetts.

*The Martindale-Hubbell Peer Review Icon is a service mark of Reed Elsevier Properties Inc., used under permission from Reed Elsevier Properties Inc. in accord with the terms and conditions established by Martindale-Hubbell.