New York State Bar

Washington State Bar (Inactive)

U.S. District Court, Southern District of New York

U.S. District Court, Eastern District of New York

U.S. District Court, Northern District of New York

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  • B.A., Political Science, Sociology, University of California Davis, 2002
  • J.D., Seattle University School of Law, Intellectual Property Law Concentration, 2007

Other Details

Eryn Y. Truong

Eryn Y. Truong’s practice encompasses a wide range of intellectual property matters including trademarks, copyrights, patents, trade secrets, privacy rights, intellectual property transactions, and intellectual property litigation.

Eryn works with clients to develop comprehensive strategies for protection and management of intellectual property assets. She handles various trademark registrations, licensing agreements, including mergers and acquisitions, for technology companies, software companies, and national retail stores and manufacturers. She is well versed in conducting infringement analysis and regularly counsels clients on potential or pending infringement problems.

She also enforces and defends trademark rights in opposition and cancellation proceedings before the Trademark Trial and Appeal Board (TTAB) of the United States Patent & Trademark Office (USPTO) and in domain name administrative proceedings under the Uniform Domain Name Dispute Resolution Policy (UDRP).

Eryn also litigates complex business litigation and intellectual property matters in both state and federal court. She successfully represented a photographer in a copyright infringement lawsuit, resulting in a $1.32 million jury verdict. The case was one of the first ruled in favor of a photographer under the Digital Millennium Copyright Act. Other noteworthy litigations include a jury verdict and an award of attorneys’ fees in a trial concerning a contract dispute between international retailers; conducting a high stakes trade secret trial for an emerging medical device company in Delaware Chancery Court, one of the nation’s most prestigious courts; and obtaining a bench verdict against sub-brokers on RICO claims in the Agape Ponzi scheme litigation.


  • Long Island Business News – Who’s Who in Intellectual Property (2012 – 2019)
  • Long Island Business News – Who’s Who in Women Professional Services (2011)


  • Unauthorized Practice of Law and the Ethics of Cost Effective Trademark Practice – American Intellectual Property Law Association, 2016
  • Intellectual Property Overview – SCORE Long Island, 2016
  • IP Considerations in Business Transactions and IP Update – National Academy of Continuing Legal Education, 2016
  • Legal Matter for Artists – East End Arts, 2016
  • Intellectual Property Protection – Stony Brook Small Business Development Center, 2017
  • Intellectual Property Overview CLE – Suffolk County Bar Association, 2017




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