David J. Tsai

Litigation - Intellectual Property

5.0 (1 reviews)

San Francisco, California

19+ years experience

Pillsbury

Updated: Jan 03, 2026

Contact Information

415-983-1000

https://www.pillsburylaw.com/en/lawyers/david-tsai.html

Four Embarcadero Center, 22nd Floor, San Francisco, CA 94111-5998

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Bio

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. 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. David J. is held by other top lawyers in the same geographic and legal practice area.

Practice Areas

Litigation - Intellectual Property

Awards & Recognition

Recognized: Litigation - Intellectual Property
Recognized: Litigation - Patent

Recognized in Best Lawyers since 2021

Education

Santa Clara University, J.D., graduated 2006

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Reviews

Christine Ward

2 weeks ago

A Strategic Partner for Complex IP and Patent Litigation

When our company faced a high-stakes patent infringement claim that threatened a core product line, we needed more than just a lawyer; we needed a strategic partner. David Tsai was exactly that. His deep, 19-year expertise in intellectual property and patent litigation, honed right here in San Francisco's competitive tech landscape, was immediately evident. He didn't just explain the legal complexities; he mapped out a clear, pragmatic business strategy. David's recognition by Best Lawyers in both Litigation - Intellectual Property and Litigation - Patent is well-deserved. He guided our internal team with patience, prepared an unshakeable defense, and ultimately secured a dismissal that protected our innovation and market position. His professionalism is matched by a genuine commitment to his clients' success. For any complex IP or patent matter, David J. Tsai at Pillsbury is the first and only call I would make.