San Francisco, California

Patent attorneys in San Francisco

San Francisco, California is home to 854 USPTO-registered patent practitioners. Working with a local practitioner can streamline in-person meetings for invention disclosures, signing inventor declarations, and reviewing prior-art search results — but every USPTO practitioner is licensed to practice nationally, so a non-local choice is also valid. Local firms with the most USPTO-registered practitioners include University of San Francisco School of Law, Calyx Law, and O'Melveny + Myers LLP.

Gabriela I Buttz

Reg. 50246

Patent agent

San Francisco, CA · 94109

415-990-0154

Christopher Ryan Byrnes

Reg. 65354

Patent attorney

Calyx Law

San Francisco, CA · 94110

510-570-6157

Timothy D. Byron

Reg. 76023

Patent agent

O'Melveny + Myers LLP

San Francisco, CA · 94111

415-984-8727

Triniti Calcote

Reg. 902993

Limited recognition

University of San Francisco School of Law

San Francisco, CA · 94117-1080

341-230-9931

Daniel C. Callaway

Reg. 74267

Patent attorney

Farella Braun + Martel, LLP

San Francisco, CA · 94104

415-954-4924

Donna M Campisi

Reg. 48824

Patent agent

San Francisco, CA · 94122

John W Carpenter

Reg. 39129

Patent attorney

Dolby Laboratories Inc.

San Francisco, CA · 94103

415-645-5648

David C Carroll

Reg. 62748

Patent agent

San Francisco, CA · 94116

Mark R Carter

Reg. 39131

Patent attorney

San Francisco, CA · 94164-1412

415-295-4524

Kimberlie L Cerrone

Reg. 37111

Patent attorney

Law Office of Kimberlie L. Cerrone

San Francisco, CA · 94158

415-378-2838

Nicholas D. Cervenka

Reg. 81893

Patent agent

Bozicevic, Field & Francis LLP

San Francisco, CA · 94105

415-230-8100

Guy Wayne Chambers

Reg. 30617

Patent attorney

Sideman & Bancroft LLP

San Francisco, CA · 94111

415-733-3950

Darby J. Chan

Reg. 62407

Patent attorney

Foley & Lardner LLP

San Francisco, CA · 94105

415-434-4484

Stephanie A Chan

Reg. 65302

Patent agent

San Francisco, CA · 94132

415-681-8209

Hung P Chang

Reg. 58711

Patent attorney

Play First, Inc.

San Francisco, CA · 94105

415-341-7262

Randall W Chang

Reg. 40946

Patent agent

RC Patent Services

San Francisco, CA · 94127

415-609-8591

Sabrina A. Chang

Reg. 59252

Patent attorney

Kirkland & Ellis, LLP

San Francisco, CA · 94104

415-439-4382

Sophia S Chang

Reg. 69407

Patent attorney

University of California, San Francisco

San Francisco, CA · 94107

415-514-6204

Steven L Chang

Reg. 59424

Patent attorney

Novak Druce + Quigg LLP

San Francisco, CA · 94105

415-814-6161

Young A. Chang

Reg. 80093

Patent agent

Sheppard Mullin

San Francisco, CA · 94111

415-774-2932

Urmi Chattopadhyay

Reg. 59018

Patent agent

Baker Botts L.L.P.

San Francisco, CA · 94111

415-291-6200

Andrew C Chen

Reg. 43544

Patent agent

Yahoo! Inc.

San Francisco, CA · 94111

415-262-7066

L. Howard Chen

Reg. 46615

Patent attorney

K & L Gates

San Francisco, CA · 94105

415-882-8200

Quynh M. Chen

Reg. 76786

Patent attorney

Polsinelli LLP

San Francisco, CA · 94111

415-248-2133

Rohit Chhabra

Reg. 70342

Patent attorney

Chhabra Law Firm, PC

San Francisco, CA · 94111

650-564-7929

Thomas Hsin-Chi Chia

Reg. 63990

Patent attorney

Via Licensing

San Francisco, CA · 94103

415-645-5014

Jennifer S Chiang

Reg. 68198

Patent attorney

Anthropic, PBC

San Francisco, CA · 94105

425-223-3951

Steve W. Chiang

Reg. 69766

Patent attorney

RPX Corporation

San Francisco, CA · 94111

415-852-3188

Alison L Chin

Reg. 70002

Patent agent

San Francisco, CA · 94132

415-566-2756

Monica Chinchilla

Reg. 900642

Limited recognition

University of San Francisco School of Law

San Francisco, CA · 94117-1080

415-422-6752

Common questions

Do patent attorneys in San Francisco cost more than the national average?

Patent attorney fees vary primarily by experience and complexity of the invention, not by city. A typical provisional patent application in the US runs $1,500 to $5,000; a non-provisional utility filing runs $5,000 to $15,000. Hourly rates in San Francisco tend to track the broader California legal market.

How many USPTO practitioners list a San Francisco office?

854 USPTO-registered patent practitioners list a San Francisco mailing address on the OEDCI roster. You can sort by firm size and contact each directly using the phone numbers shown.

Can I work with a San Francisco practitioner remotely?

Yes. All filings happen through USPTO's electronic Patent Center — no in-person presence is required. A San Francisco-based practitioner is convenient for local inventor signings and in-person meetings but not a requirement for representation.