Mark A. Finkelstein

Mark A. Finkelstein


Umberg Zipser LLP

Recognized since 2016

Irvine, California

Practice Areas

Commercial Litigation

Litigation - Intellectual Property

Litigation - Patent

Trademark Law

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Lawyer of the Year Badge - 2023 - Litigation - Patent Lawyer of the Year Badge - 2023 - Trademark Law Lawyer of the Year Badge - 2021 - Trademark Law
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Mark Finkelstein is a partner at Umberg Zipser LLP with more than 23 years of intellectual property and complex litigation experience. He advises clients on matters involving patent, copyright, trademark, and trade dress infringement, as well as misuse of trade secrets, unfair competition, and other commercial disputes. Mark has significant first-chair trial experience in both state and federal courts, and has argued before the Federal and Ninth Circuits.Mark has been recognized for intellectual property litigation by Best Lawyers in America and Southern California Super Lawyers. Further, Legal 500 and World Trademark Review have recommended Mark for trademark litigation, with World Trademark Review calling Mark “a bright, experienced litigator” with an “imposing courtroom presence” and “extensive first-chair trial experience before the federal courts,” adding that he is “one of the smartest guys you would probably ever meet.”Mark is the immediate past president of the Association of Business Trial Lawyers (ABTL) Orange County and is a Lawyer Representative to the Ninth Circuit Judicial Conference. Mark has written articles on patent reform, cybersquatting, and trade dress infringement and has spoken on intellectual property protection, patent infringement, and electronic discovery. He has been a member of the American and Orange County Bar Associations, the American Intellectual Property Law Association, and the Orange County Intellectual Property Law Association.

Location
  • 1920 Main Street, Suite 750
    Irvine, CA 92614
Languages
  • English
Education
  • University of Southern California, JD, graduated 1994
  • University of California - Los Angeles, BA, graduated 1991
Bar Admissions
  • California, California State Bar
Affiliations
  • American Bar Association - Member
  • American Intellectual Property Bar Association - Member
  • Constitutional Rights Foundation - Former Board Member
  • Federal Bar Association, Orange County - Former Board Member
  • Intellectual Property Owners Association - Member, Damages and Injunctions Committee
  • International Trademark Association - Member, Enforcement Committee
  • Ninth Circuit Judicial Conference - Lawyer Representative
  • Orange County Bar Association - Member
  • Orange County Intellectual Property Law Association - Member
  • The Association of Business Trial Lawyers Orange County - Immediate Past President
Court Admissions
  • United States Supreme Court
  • United States Court of Appeals
  • Ninth and Federal Circuit Court of Appeals
  • United States District Courts: Central, Northern, Eastern and Southern Districts of California
  • Eastern District of Texas

Umberg Zipser LLP
Headquarters: Irvine, California

10 The Best Lawyers in America® awards

1 Best Lawyers: Ones to Watch® in America award

Best Law Firms Badge Visit Website View Firm Profile

Lawyer of the Year Badge - 2023 - Litigation - Patent Lawyer of the Year Badge - 2023 - Trademark Law Lawyer of the Year Badge - 2021 - Trademark Law
Named "Lawyer of the Year" by Best Lawyers® for:
  • Litigation - Patent, Orange County (2023)
  • Trademark Law, Orange County (2023)
  • Trademark Law, Orange County (2021)
Recognized in The Best Lawyers in America® 2025 for work in:
  • Commercial Litigation
  • Litigation - Intellectual Property
  • Litigation - Patent
  • Trademark Law
Special Focus:
  • False Advertising
Awards:
  • Best Lawyers in America (2016-2019) for intellectual property litigation and patent litigation
  • Legal 500 U.S. (2007): leading trademark litigation attorney
  • Southern California Super Lawyers (2009-2013, 2015-2018) and Southern California Rising Stars (2004-2007) for IP litigation
  • World Trademark Review “recommended expert” (2011-2012, 2014-2018): “a bright, experienced litigator” with an “imposing courtroom presence” and “extensive first-chair trial experience before the federal court
Additional Areas of Practice:
  • Advertising Law

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Publications

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