Perry Viscounty is a nationally recognized trial attorney who handles high-stakes cases for companies ranging from Fortune 100 to emerging companies. He handles intellectual property and technology litigation with an emphasis on complex jury trials.

Mr. Viscounty has been recognized in:

  • The Legal 500 US 2021 as a Recommended Lawyer for Intellectual Property
  • Chambers Global 2013, 2015 - 2021, 2023 for USA, Intellectual Property: Trademark, Copyright & Trade Secrets
  • Chambers USA 2008 - 2022 for California Intellectual Property: Trademark, Copyright & Trade Secret
  • Benchmark Litigation 2020 - 2021, 2023 as a National Litigation Practice Area Star and Local Litigation Star
  • The National Law Journal 2018 as an Intellectual Property Trailblazer
  • Daily Journal, ranked among the Top Intellectual Property Lawyers in California (multiple years)
  • World Trademark Review (WTR) 1000 2020
  • World Intellectual Property Review 2017 as a Leader
  • The Recorder 2017 as Litigation Groundbreaker

Mr. Viscounty is a Fellow of the Litigation Counsel of America, a member of the International Trademark Association, and an arbitrator for the World Intellectual Property Organization. He has been a guest lecturer at USC and UCLA, and has taught numerous seminars regarding effective presentations for jury trials and arbitrations.

Mr. Viscounty's experience includes representation of:

  • Lori Loughlin and Mossimo Giannulli in the highly publicized Varsity Blues college admissions case, in the US District Court, District of Massachusetts
  • TIME magazine in a trademark infringement case filed by The New York Times, in US District Court, Southern District of New York 
  • Codexis, Inc., a public biotech company, in a complex and contentious trademark dispute against another public biotech company, in the Northern District of California.  
  • Craigslist in several lawsuits involving the scope of website immunity afforded under Section 230 of the Communications Decency Act and related state law claims.  This representation has included multiple precedent setting victories in which Latham obtained dismissals for craigslist in the face of new and evolving laws
  • Curvature in connection with several IP disputes related to hardware and software
  • Supreme New York in several trademark disputes  
  • Canopy Growth in a trademark and unfair competition dispute against Cointreau, a leading producer of alcoholic beverages, in the Southern District of New York  
  • System1, LLC in a trademark infringement action in the Southern District of New York
  • America Chung Nam, Inc., the largest exporter of recycled paper in the US, in a three-week jury trial in Los Angeles resulting in a judgment of US$18.1 million for his client. In its annual Top Verdicts of 2013 feature, the Daily Journal selected this case as a Top Plaintiffs’ Verdicts by Impact in California
  • Tesla in a US$2 billion trade dress case
  • Apple in several trademark cases
  • craigslist in a suit alleging breach of contract, copyright infringement, and violations of the CAN-SPAM Act and the Computer Fraud and Abuse Act, resulting in a permanent injunction and judgment of US$60.5 million in favor of our client craigslist
  • craigslist in a lawsuit alleging breach of contract and violations of the CAN-SPAM Act, resulting in a permanent injunction and judgment of US$31 million in favor of craigslist
  • craigslist in a data protection and privacy lawsuit against numerous defendants in the Northern District of California, SF Division. Obtained judgment of US$3.1 million and a permanent injunction.
  • Buzz Off Insect Shield in a five-week jury trial in North Carolina successfully defending against trademark infringement, false advertising, and unfair trade practices claims (S.C. Johnson & Son, Inc. v. Buzz Off Insect Shield, LLC
  • The Waterfront Hilton Hotel in a four-month trial in Orange County, California
  • Adobe against trademark and trade dress infringement, dilution, false designation of origin, copyright infringement, and unfair competition claims
  • Allergan in numerous trademark infringement, unfair competition, and false advertising cases
  • GE in several lawsuits and arbitrations
  • Ford in a global intellectual property dispute
  • Assisted with managing the worldwide trademark portfolio for Tom Brady’s lifestyle company TB12
  • Vertex, Inc. in a trade secrets and unfair competition case against Avalara, Inc. in the Eastern District of Pennsylvania

Additional representative clients include Paula Abdul, Allianz, Bank of America, Boeing, Broadcom, Capital Group Companies, Carlyle Group, Cartier, Chrome Hearts, City of Hope, Cooper Companies, craigslist, Eddie Bauer, Ecko, Entrepreneur Media, FileNet, Frank Gehry, Fred Segal, Gap, Goldman Sachs, Guthy-Renker, Intel, Intuity Medical, JP Morgan, Lyft, Mattel, Mikasa, Mont Blanc, Mossimo, Nestlé, NHR, Nissan, Oakley, Office Depot, Old Navy, Omicom, Paul Frank, Remedy, Robb Report, Rockwell Collins, Saban Brands, Santa Barbara Polo Club, Schiff Nutrition, Sepracor, Skullcandy, Sony, Spectrum Pharmaceuticals, St. John Knits, Symantec, TiVo, Trion Worlds, US Soccer Federation, VeriSign, Veritas, Vizio, Volcom, Wet Seal, Western Digital, and Wikia.

Bar Qualification

  • California


  • JD, University of Southern California Gould School of Law, 1987
  • BS, University of Southern California, 1984
General Recognition Thumbnail
January 30, 2018 Recognition

Top Cyber/AI Lawyers 2018: Perry J. Viscounty

Veteran IP litigation partner among select lawyers on inaugural list of leading lawyers in California advising on cyber and artificial intelligence matters.