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Hans L. Mayer

Hans Mayer is a litigation partner in our Los Angeles office.

Mr. Mayer represents clients in district courts throughout the country, as well as the TTAB and PTAB.  His cases have covered a wide array of technologies and products, including transcatheter heart valve replacement and repair devices, energy drinks, signal boosters, genetic sequencing devices, recreational watercraft, and Emmy Award winning documentaries.  He also advises clients with respect to worldwide brand protection and has directed enforcement matters across the globe.

In 2017, Mr. Mayer was selected to conduct jury trials and felony preliminary hearings as first chair trial attorney with the Orange County District Attorney’s Trial Attorney Partnership program.

Mr. Mayer received his Bachelor’s Degree in Biomedical Engineering from Brown University. While at Brown, he conducted extensive research in the Gait and Motion Analysis Lab at the Providence VA Medical Center. He received his J.D. from Loyola Law School, where he was a member of the St. Thomas More Honor Society as well as an Editor on the Loyola of Los Angeles Entertainment Law Review.

Loyola Law School, J.D., St. Thomas More Law Honor Society, Loyola of Los Angeles Entertainment Law Review
Brown University, B.S., Biomedical Engineering
State Bar of California
U.S. District Court – Central District of California
U.S. Patent and Trademark Office
Consumer Products & Services

Aesthetics & Personal Care Products

Food & Beverage

Restaurants & Hospitality

Sporting Goods & Recreation

Fashion & Beauty

Media, Advertising & Entertainment

Medical Devices & Procedures



Cardiac Assist Device (E.g., LVAD & Heart Pumps)


Catheters & Probes

Chordae Tendineae Repair & Replacement

Dermatology & Aesthetics


Medical Informatics & Software Systems

Mental Health & Wellness

Minimally Invasive & Endoscopic Procedures


Ophthalmology & Eye Care


Prosthetics & Orthotics

Spinal Cages

Spinal Fusion


Sports Medicine

Stents, Valves, & Delivery Systems

Structural Heart

Surgical Equipment

Tissue Engineering

Trans Septal Crossing

Transcatheter & Surgical Aortic, Mitral & Tricuspid Valve Replacement


Transportation & Vehicles

Automotive Transportation & Powersports

Personal Motorized Recreation Vehicles (ATVs, Snow Vehicles, Personal Watercraft)

Copyright Litigation
Copyright Litigation
False Advertising Litigation
International Trademarks
Patent Litigation
Patent Trial & Appeal Board (PTAB) Litigation
Trade Secret
Trade Secret & Employee Mobility Litigation
Trade Secret & Employee Mobility Litigation
Trademark & Brand Protection
Trademark and Brand Protection Litigation
Trademark and Brand Protection Litigation
Trademark Enforcement
Trademark Trial & Appeal Board (TTAB) Litigation 
TTAB Proceedings
Unfair Competition Litigation
Unfair Competition Litigation

Rising Stars Badge

  • Named to the Best Lawyers: Ones to Watch guide, which “recognizes lawyers who are earlier in their careers for their outstanding professional excellence in private practice”, for Intellectual Property Litigation (2024)
  • Named a “Rising Star” by Law360 for being among the top intellectual property law practitioners under age 40 (2023)
  • Received “California Future Star” ranking in Benchmark Litigation (2023)
  • Recognized as one of Southern California’s “Rising Stars” for his outstanding intellectual property legal work in Super Lawyers magazine (2022 – 2023)
  • Recognized by The Legal 500 “United States” for Patent Litigation (2021) and Trademark Litigation (2023)

Los Angeles Intellectual Property Law Association (LAIPLA)

          Board of Directors (2020)

Orange County Bar Association (OCBA) 

Secretary (2014) Intellectual Property & Technology Law Division

AIJA: International Association of Young Lawyers

Member, Intellectual Property and Technology Commission


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