Arnold & Porter



Practice area

IP STARS Reviews


Arnold & Porter’s California IP group is spread across three offices in Los Angeles, Palo Alto and San Francisco. The firm is highly recommended in litigation across practice areas, including patent, trademark and copyright.

Key patent practitioners include Michael Berta and Deborah Fishman, who offer significant experience in patent litigation and post-grant proceedings. For copyright and trademark matters, Ronald Johnston and Rhonda Trotter are two of the firm’s standout practitioners. Thomas Magnani contributes to the firm’s significant practice focused on IP transactions.

Copyright & related rights

The firm has represented Adobe in many copyright matters, recently resolving a case in favor of the client.

The firm also resolved a case in which Dolby had claimed damages in the multiple billions of dollars. Additional copyright clients include Experian and Crocs.


The firm continues to represent Google and its subsidiaries in multiple patent disputes, including PTAB proceedings related to WiFi and secure login technologies. The patent group was also active for Sanofi in a noteworthy antibody case against Amgen involving legal questions related to written description and enablement.

Trade mark

Arnold & Porter successfully defended Airbus Helicopters and AIRBUS US Space & Defense in a right of publicity and trademark infringement matter filed in the Central District of California by famed test pilot Chuck Yeager.