Jennifer has over twenty years of experience representing clients in the technology sector. Her practice includes litigation as well as strategic counseling on a wide variety of matters, ranging from intellectual property protection and enforcement to commercial disputes. Her subject matter expertise includes copyright, trademark, right of publicity, trade secret, unfair competition, false advertising and contracts. Jennifer is keenly focused on helping her clients minimize risk and avoid litigation. When disputes do arise, she prides herself on resolving them quickly and on terms that are highly favorable to her clients.

Over the past decade, Jennifer has focused her practice on the games industry. She is one of the foremost authorities on intellectual property issues in games, and among the world’s leading experts on game cloning. Jennifer’s counseling practice includes advising companies how to design or modify games to avoid or mute claims of infringement, and – on the flip side – what steps to take when their own intellectual property has been misused.  On the litigation front, Jennifer has led her clients (including King, Glu Mobile, Gram Games, Peak Games and Good Job Games) to success in a number of high profile copyright cases. The Recorder has identified Jennifer as the “go-to lawyer in ‘game cloning’ cases.” 

Jennifer has received many accolades for her professional accomplishments. The Daily Journal named her as one of the "Top Intellectual Property Attorneys" in California in back-to-back years and one of the “Top Entertainment Lawyers” in California, a list that honors the top 50 litigators and dealmakers who are reshaping the movie, music and games industries. The Legal 500 has recognized Jennifer as a leading copyright attorney. Jennifer has been named three times to the San Francisco Business Times’ list of the Most Influential Women in the Bay Area, a list that honors outstanding leaders and role models across a broad range of industries. In 2016 and 2017, Jennifer was honored as a Women Leader in Tech Law by The Recorder, recognizing her for her groundbreaking contributions in the games industry.

Prior to joining forces with her husband Ryan Tyz at the Tyz Law Group, Jennifer was a partner at Fenwick & West, where she founded and Co-Chaired the Games Industry Group, served as Chair of the firm’s Intellectual Property & Commercial Litigation group, and led the Women’s Caucus – an internal initiative focused on supporting and advancing female attorneys (a particular passion of Jennifer’s).  Jennifer also served on the Executive Board of Techlaw, a network of 28 law firms around the world (of which Fenwick is a member) that serve clients in the technology sector.  Jennifer was the first woman ever elected to Techlaw’s Executive Board, and served as Treasurer in 2018-2019.

Jennifer frequently writes and speaks on IP and other hot issues in games, including at the annual Video Game Bar Association Summit, the Games Industry Law Summit, and conferences sponsored by the American Bar Association and the Copyright Society. She guests lectures on video game law at Berkeley Law and the University of British Columbia Law School.  During GDC 2013, she provided legal commentary about game cloning in a documentary film published on Polygon called Cloned at Birth: The Story of Ridiculous Fishing. Jennifer has also authored amicus briefs in a number of high profile litigations, including MGM v. Grokster, one of the most significant copyright cases to reach the Supreme Court in decades, and In re: National Security Agency Telecommunications Records Litigation, a consolidation of cases asserting privacy and related claims against the major telecommunications carriers and federal government relating to their unauthorized surveillance of domestic communications.

During college, Jennifer worked as a research analyst at the Governor’s Office of Planning and Research in Sacramento, California, and interned at the United States Department of Justice in Washington, D.C.  While in law school, Jennifer was a member of the UCLA Entertainment Law Review and served as an extern to the Honorable Vaughn R. Walker in the United States District Court for the Northern District of California.

In her spare time, Jennifer can most likely be found playing games, riding her Peloton, or cheering loudly from the sidelines at her sons’ sporting events. Be warned that if you challenge her to a race, you will lose.


  • J.D., University of California, Los Angeles School of Law, 1997
    Order of the Coif, Member of the UCLA Entertainment Law Review

  • B.A., Political Science
    University of California, Davis, 1993
    with honors, Phi Beta Kappa, recipient of the Edward Frank Kraft Scholarship Prize for Freshmen based on outstanding academic achievement

  • Member of the State Bar of California

  • Admitted to all of the United States District Courts for the State of California

  • Admitted to the United States Court of Appeals for the Ninth Circuit

  • Active member of the Bar Association of San Francisco, the American Bar Association, and the Video Game Bar Association (board member)