Best Lawyers in California, United States for Litigation - Patent
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Contact UsDaralyn 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.
Brian M. Kramer is a top attorney recognized by Best Lawyers in the practice area(s) of Litigation - Intellectual Property, Litigation - Patent and Patent Law. Brian M., who practices law in San Diego, California, has been recognized since 2023. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Brian M. is held by other top lawyers in the same geographic and legal practice area.
Elizabeth Day is a top attorney recognized by Best Lawyers in the practice area(s) of Litigation - Intellectual Property, Litigation - Patent and Patent Law. Elizabeth, who practices law in Redwood City, California, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Elizabeth 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...
Susan M. Spaeth is a top attorney recognized by Best Lawyers in the practice area(s) of Litigation - Intellectual Property and Litigation - Patent. Susan M., who practices law in Menlo Park, California, has been recognized since 2013. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Susan M. is held by other top lawyers in the same geographic and legal practice area.
Brian Kennedy focuses on intellectual property and complex commercial litigation. My focus My litigation practice focuses on various intellectual property disputes dealing with all aspects of patent litigation. I represent clients in commercial disputes across a wide range of technologies. I develop and execute case strategies and have extensive experience with discovery, due diligence, arguing motions, and case management. I am highly skilled at developing patent infringement and invalidity ...
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...
Bobbie Wilson is a top attorney recognized by Best Lawyers in the practice area(s) of Litigation - Patent. Bobbie, who practices law in San Francisco, California, has been recognized since 2020. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Bobbie is held by other top lawyers in the same geographic and legal practice area.
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...
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, ...
Matthew C. Bernstein is a top attorney recognized by Best Lawyers in the practice area(s) of Commercial Litigation, Litigation - Intellectual Property, Litigation - Patent and Patent Law. Matthew C., who practices law in San Diego, California, has been recognized since 2015. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Matthew C. is held by other top lawyers in the same geographic and legal practice area.
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.
Our Methodology
Recognition by Best Lawyers is based entirely on peer review. Our methodology is designed to capture, as accurately as possible, the consensus opinion of leading lawyers about the professional abilities of their colleagues within the same geographical area and legal practice area.
The Process
Best Lawyers employs a sophisticated, conscientious, rational, and transparent survey process designed to elicit meaningful and substantive evaluations of the quality of legal services. Our belief has always been that the quality of a peer review survey is directly related to the quality of the voters.