Eric G. J. Kaviar

Eric G. J. Kaviar


Northeastern University School of Law


Bates College

B.A., cum laude

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Practice Areas


  • Northeastern University School of Law


  • Bates College

    B.A., cum laude


Eric G. J. Kaviar is a litigation partner at Sunstein, and is skilled in resolving intellectual property disputes and counseling his clients on developing their IP portfolios. Through over 15 years of experience finding novel solutions to challenging problems, Eric understands that there isn’t a “one-size-fits-all" answer to his client’s legal needs. He believes that creativity is what distinguishes good results from great results. Eric applies such ingenuity to help his clients meet their goals; clients who range from entrepreneurs and start-up organizations to established international Fortune 500 companies.

Eric’s primary aim in every representation is to bring about the outcome that best aligns with clients’ long-term business goals, so he approaches matters with an open mind and a tailored strategy. More broadly, Eric has a proven track record successfully representing clients in patent, trade secret, and trademark law disputes, all of which, to date, have resolved successfully, whether by an opinion, verdict, or a favorable settlement.

His technical experience covers a wide array of subjects, including video gaming technology, voice over IP technology, content delivery networks, electrophoretic displays, suspended particle devices, optical equipment, point-of-sale devices, matrix displays, helmets, eyewear, adjustable bed frames, medical devices, and various types of software.

Eric is adept at handling all aspects of litigation, from pre-filling investigation through trial and appeal. He has litigated in many jurisdictions, including federal district courts across the country, the Federal Circuit, as well as state court cases in Massachusetts, New Hampshire, and Florida in addition to successfully trying a case in the Delaware Court of Chancery. Eric is also experienced litigating at the International Trade Commission.

Honors & Awards

  • Selected to The Best Lawyers in America® in the area of Litigation - Intellectual Property, 2018-2024.
  • Recognized in Massachusetts Super Lawyers®, part of Thomson Reuters, 2021-2023.
    • Recognized in Massachusetts Rising Stars, 2013-2020


  • Boston Bar Association


  • "Contract Rights Vs. Patent Invalidity: 2 Key Cases To Watch," Co-Author, Law360 (June 2021)
  • "What We Know So Far About Direct Infringement Post-Form 18," Intellectual Property Law360 (May 2017)
  • "Leveraging the ITC's Power, Post-Suprema," Intellectual Property Magazine (March 2015)
  • "Suprema v ITC: Defining 'Articles That Infringe'," Intellectual Property Magazine (March 2015)
  • "Five Intellectual Property 'Landmines' Entrepreneurs Should Avoid," Upstart Business Journal (August 2013)


  • Massachusetts
  • U.S. District Court for the District of Massachusetts
  • U.S. Court of Appeals for the First Circuit
  • U.S. Court of Appeals for the Federal Circuit

Practice areas

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