As the chair of Farella's IP Litigation Group, Eugene Mar specializes in litigating cases for technology companies, with a primary focus on patent, trade secret, and licensing disputes.

Eugene prides himself in finding the most efficient path in a case to achieving the business and litigation objectives of his client, and if a case goes to trial, he is a skilled, aggressive, and effective advocate in the courtroom experienced in presenting the best themes and arguments to persuade the court and a jury. He enjoys the complexity of high-tech cases and the opportunities they present to learn about new technologies, products, and services. His clients have included Dell Technologies Inc., Twilio Inc., Visa Inc., Mercari U.S. Inc., and Google LLC.

Eugene also has substantial experience in trademark, CFAA, DMCA, unfair competition, non-solicitations, and non-compete claims, as well as general commercial litigation in federal and state courts and in arbitration. In addition to litigation, Eugene advises technology clients on IP licensing, IP protection, and AI policies.


  • Best Lawyers in America in Litigation - Patent Law (2023-2024)
  • Managing Intellectual Property’s IP Stars - Patent Litigation (2018-2023)
  • Euromoney Legal Media Group, Americas Rising Stars shortlist, Best in Patent (2019)
  • Benchmark Litigation "40 & Under Hotlist" (2017-2019)
  • The Recorder’s inaugural list of 50 "Fast Track" lawyers in California (2012)
  • Euromoney Legal Media Group to the shortlist of the inaugural Americas Rising Stars Awards in the “Best in Patent” category (2018)

Memberships and Affiliations

  • Past Chair, Intellectual Property Section, Bar Association of San Francisco
  • Co-Chair, Intellectual Property Roundtable Committee, ABA Litigation Section