Best Lawyers in California, United States for Litigation - Patent

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.

Frank P. Coté is a top attorney recognized by Best Lawyers in the practice area(s) of Litigation - Patent. Frank P., who practices law in Irvine, California, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Frank P. is held by other top lawyers in the same geographic and legal practice area.

Callie A. Bjurstrom is a top attorney recognized by Best Lawyers in the practice area(s) of Litigation - Intellectual Property, Litigation - Patent and Trade Secrets Law. Callie A., who practices law in San Diego, California, has been recognized since 2019. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Callie A. is held by other top lawyers in the same geographic and legal practice area.

Adam Alper is a leading member of the intellectual property litigation group in Kirkland’s Bay Area office. Focusing primarily on patent and trade secret disputes, and predominantly representing clients in the semiconductor, telecommunications, computer hardware and pharmaceutical industries, Adam regularly litigates high-stakes competitor cases involving concurrent claims of patent, trade secret and copyright violations. These disputes often involve co-pending actions in US District Co...

Nicholas A. Brown is a top attorney recognized by Best Lawyers in the practice area(s) of Litigation - Patent. Nicholas A., who practices law in San Francisco, California, has been recognized since 2017. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Nicholas A. is held by other top lawyers in the same geographic and legal practice area.

Daralyn J. Durie 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 and Litigation - Patent. Daralyn J., 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 Daralyn J. is held by other top lawyers in the same geographic and legal practice area.

James R. Batchelder is a top attorney recognized by Best Lawyers in the practice area(s) of Litigation - Intellectual Property, Litigation - Patent and Patent Law. James R., who practices law in Palo Alto, California, has been recognized since 2014. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which James R. is held by other top lawyers in the same geographic and legal practice area.

Peter K. Hahn is a top attorney recognized by Best Lawyers in the practice area(s) of Litigation - Patent. Peter K., who practices law in San Diego, California, has been recognized since 2013. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Peter K. is held by other top lawyers in the same geographic and legal practice area.

Joseph C. Gratz is a top attorney recognized by Best Lawyers in the practice area(s) of Copyright Law, Litigation - Intellectual Property and Litigation - Patent. Joseph C., who practices law in San Francisco, California, has been recognized since 2012. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Joseph C. is held by other top lawyers in the same geographic and legal practice area.

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...

Elizabeth L. Brann is a top attorney recognized by Best Lawyers in the practice area(s) of Litigation - Patent. Elizabeth L., who practices law in San Diego, California, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Elizabeth L. 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, ...

Denise De Mory is the managing partner and co‑founder of Bunsow De Mory LLP in Redwood City, California . Her practice focuses on Litigation - Intellectual Property and Litigation - Patent , representing clients in complex disputes involving patents and other intellectual property rights. She has litigated more than 150 patent and intellectual property cases in courts across the United States, including major patent venues in California, Texas, and Delaware. Denise is a seasoned trial lawyer ...

Christopher Kao is a top attorney recognized by Best Lawyers in the practice area(s) of Litigation - Intellectual Property and Litigation - Patent. Christopher, who practices law in San Francisco, California, has been recognized since 2018. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Christopher is held by other top lawyers in the same geographic and legal practice area.

David J. Tsai is a top attorney recognized by Best Lawyers in the practice area(s) of Litigation - Intellectual Property and Litigation - Patent. David J., 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 David J. is held by other top lawyers in the same geographic and legal practice area.

Erik Puknys’ career in intellectual property began more than 25 years ago, when he joined the U.S. Patent & Trademark Office as a patent examiner. Erik started his legal career at Finnegan’s Washington, D.C. office in 1994, and moved to California in 1997 to help open the firm’s Silicon Valley office. He has represented both plaintiffs and defendants in district courts around the United States, in the Court of Appeals for the Federal Circuit, and in the U.S. Supreme Cour...