Best Lawyers in California, United States for Litigation - Intellectual Property

Larry Russ is a founding partner and co-head of the litigation department of Russ August & Kabat. As an active trial attorney, Mr. Russ has focused on trademark, copyright, patent, business torts, trade regulation and advertising law and complex litigation. Mr. Russ has also worked extensively on antitrust and unfair competition matters. Directly after being admitted to the California Bar in 1978, Mr. Russ launched his career by successfully challenging Levi-Strauss & Co’s resal...

Kenneth E. Keller is a top attorney recognized by Best Lawyers in the practice area(s) of Litigation - Intellectual Property and Litigation - Patent. Kenneth E., who practices law in San Francisco, California, has been recognized since 2021. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Kenneth E. is held by other top lawyers in the same geographic and legal practice area.

Joshua Lerner is a leading litigator who has built a technology-focused practice representing clients before federal and state courts and arbitral forums in complex commercial and intellectual property litigations, including trade secrets, class actions and contract disputes. Mr. Lerner has handled numerous high-stakes founder disputes. Mr. Lerner brings not only years of court room experience but also in-house experience to understanding and achieving his clients’ goals.

Jonathan Steinsapir is a top attorney recognized by Best Lawyers in the practice area(s) of Entertainment Law - Motion Pictures and Television, Entertainment Law - Music and Litigation - Intellectual Property. Jonathan, who practices law in Los Angeles, California, has been recognized since 2023. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Jonathan is held by other top lawyers in the same geographic and legal practice area.

Diana Torres is an intellectual property and commercial litigation partner in Kirkland's Los Angeles and Bay Area offices. Diana focuses her practice on false advertising, unfair competition, trademark, copyright, and trade secrets matters, and has handled many high-profile matters for a wide variety of clients, including consumer product manufacturers, fitness service providers, entertainment and media companies, and Internet service providers. Diana also advises clients on compliance and co...

Ragesh K. Tangri is a top attorney recognized by Best Lawyers in the practice area(s) of Bet-the-Company Litigation, Commercial Litigation, Copyright Law, Litigation - Intellectual Property, Litigation - Patent, Patent Law and Trade Secrets Law. Ragesh K., who practices law in San Francisco, California, has been recognized since 2007. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Ragesh K. is held by other top lawyers in the same geographic...

Arturo González is chair of Morrison & Foerster’s Commercial Litigation and Trial Practice Group and a former co-chair of our Litigation Department. He is a trial lawyer who specializes in high-stakes, bet-the-company litigation. Mr. González has successfully defended three trials where the plaintiffs sought more than $1 billion in damages, including a trade secrets case on behalf of Cypress Semiconductor Corporation. That lawsuit was filed by Silvaco Data Systems, and...

John V. Berlinski is a top attorney recognized by Best Lawyers in the practice area(s) of Commercial Litigation, Entertainment Law - Motion Pictures and Television and Litigation - Intellectual Property. John V., who practices law in Los Angeles, California, has been recognized since 2023. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which John V. is held by other top lawyers in the same geographic and legal practice area.

Mr. Kinsella is a nationally known trial lawyer specializing in the areas of entertainment and intellectual property litigation. During his career, he has successfully tried numerous cases in state and federal courts, and in private arbitrations and administrative proceedings, involving a wide array of disputes, from copyright and trademark infringement matters to antitrust and securities litigation. Mr. Kinsella has represented large domestic and international corporations, major motion pict...

Sonal N. Mehta is a trial lawyer representing many of the world’s leading technology and life sciences companies in high-stakes disputes. Ms. Mehta is regularly called upon by clients—ranging from Silicon Valley’s largest companies to cutting-edge startups—to serve as both lead counsel in the courtroom and trusted advisor in the boardroom. She has nearly 25 years of experience across all aspects of trial and appellate practice, including federal jury and bench trials, ...

David Grossman is a top attorney recognized by Best Lawyers in the practice area(s) of Entertainment Law - Motion Pictures and Television and Litigation - Intellectual Property. David, who practices law in Los Angeles, California, has been recognized since 2023. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which David is held by other top lawyers in the same geographic and legal practice area.

Matthias Kamber is a partner in the Intellectual Property practice of Paul Hastings and is based in the firm's San Francisco office. Mr. Kamber focuses on litigating intellectual property cases and has tried approximately ten jury and bench trials. In particular, Mr. Kamber has handled patent cases involving internet advertising and telephones, smartphones, and microprocessors throughout the country and before the U.S. International Trade Commission. Mr. Kamber has also handled trade secret, ...

Larry Steinberg is Chair of the firm’s Multi-Level Marketing Practice Group. He focuses his practice on complex business litigation, representing both plaintiffs and defendants in all aspects of civil litigation.

Julia R. Haye’s entertainment practice includes successful resolution, at trial and in arbitration, of complex business disputes involving profit participation, motion picture production and distribution, rights ownership, copyright and trademark infringement, idea submission, and other entertainment-related conflicts and contractual disputes. Her counsel and interests encompass every genre of entertainment and media, including studio and independent motion pictures, television, music, ...

Andrew Levine is a partner with BraunHagey & Borden. He has extensive experience working on diverse issues including disputes involving trade secrets, patent and other intellectual property rights, antitrust, right of publicity, employee raiding, employer retaliation, professional malpractice, breach of contract and fiduciary duties, as well as other complex business disputes and class actions. He has defended and prosecuted claims on behalf of a wide array of clients–from Fortune 5...

Judy Mohr, PhD, helps companies maximize product protection and intellectual property (IP) value by focusing on the business goals of the company and designing a patent portfolio to meet those objectives. Her practice encompasses US and non-US patent procurement, post-grant proceedings (including reexamination and inter partes review), IP due diligence on the investor side and the company side, negotiation of agreements, and development of IP strategies. She assists companies in the pharmaceu...