California

Patent attorneys in California

California hosts 9,553 active patent practitioners registered with the USPTO Office of Enrollment and Discipline. Patent attorneys and patent agents can both prepare and file patent applications, but only patent attorneys can also offer legal advice on prosecution strategy, freedom-to-operate analyses, and infringement opinions in California. Practitioners are concentrated across 20 cities, with the largest clusters in the metros listed below. Notable firms with multiple registered practitioners in the state include Knobbe, Martens, Olson & Bear, LLP, Morrison & Foerster LLP, and Law Office of Alexis J Saenz.

Top cities in California

All practitioners in California

Rebecca Snavely Saelao

Reg. 65820

Patent attorney

Morrison & Foerster LLP

San Francisco, CA · 94105

415-268-6556

Alexis J Saenz

Reg. 54570

Patent attorney

Law Office of Alexis J Saenz

Riverside, CA · 92505

323-501-7403

Nora Safa

Reg. 78819

Patent agent

Wilson Sonsini Goodrich & Rosati

San Diego, CA · 92130

858-780-6382

Francis G Safar

Reg. 64191

Patent agent

San Diego, CA · 92122

858-692-5594

Denise Saffold

Reg. 35931

Patent attorney

San Jose, CA · 95134

408-470-1000

Michael A Saffron

Reg. 75677

Patent attorney

Fenwick & West LLP

Mountain View, CA · 94041

650-335-7959

Parth V. Sagdeo

Reg. 71275

Patent agent

Orrick-Herrington & Sutcliffe LLP

Menlo Park, CA · 94025-1015

617-880-2231

Michael G Saghbini

Reg. 54419

Patent agent

Poway, CA · 92064

858-312-1851

Kylie N. Sagisi

Reg. 78836

Patent agent

Talis Biomedical Corporation

Menlo Park, CA · 94025

805-720-1462

Jasbir K Sagoo

Reg. 51177

Patent attorney

Agilent Technologies, Inc

Santa Clara, CA · 95051

408-553-3560

Malavika Pragati Sahai

Reg. 50416

Patent attorney

The J. David Gladstone Institutes

San Francisco, CA · 94158

415-734-2000

Laxman H Sahasrabuddhe

Reg. 66433

Patent attorney

San Ramom, CA · 94582

925-361-3513

Kiran P. Sahasrabudhe

Reg. 61165

Patent agent

K&L Gates LLP

Irvine, CA · 92614

949-623-3534

Donna O. Sai

Reg. 64086

Patent attorney

Torrance, CA · 90503

310-542-7520

James K Sakaguchi

Reg. 41285

Patent attorney

Vista IP Law Group LLP

Irvine, CA · 92618

760-803-5967

Bradley T Sako

Reg. 37923

Patent attorney

Law Office of Bradley Sako

Livermore, CA · 94550

925-344-5304

Michael E. Salamy

Reg. 80189

Patent agent

Knobbe, Martens, Olson & Bear, LLP

Irvine, CA · 92614

858-225-3683

Terri Sale

Reg. 45066

Patent attorney

University of California Berkeley, OTL

Berkeley, CA · 94704-1347

510-643-4219

Dianoosh Salehi

Reg. 46352

Patent attorney

The Salehi Law Group

Aliso Viejo, CA · 92656

703-477-6439

Jesse A Salen

Reg. 72209

Patent attorney

Sheppard, Mullin, Richter and Hampton, LLP

San Diego, CA · 92130

858-720-8964

Raimond Salenieks

Reg. 37924

Patent agent

Knobbe, Martens, Olson & Bear, LLP

Irvine, CA · 92614

858-707-4000

Katherine B. Sales

Reg. 72026

Patent attorney

Cislo & Thomas

Los Angeles, CA · 90025

310-451-0647

Michael Wayne Sales

Reg. 30213

Patent attorney

Los Angeles, CA · 90056

Richard Carl Salfelder

Reg. 51127

Patent attorney

Lee, Hong, Degerman, Kang & Waimey

Los Angeles, CA · 90017

213-623-2221

Matthew Y Salinero

Reg. 78167

Patent agent

Fenwick and West

Mountain View, CA · 94041

650-335-7961

Andrew T. Salmon

Reg. 79894

Patent agent

Los Angeles, CA · 90006

310-909-3533

James H Salter

Reg. 35668

Patent attorney

Inventive Law Inc.

Auburn, CA · 95603

408-406-4855

Robert A Saltzberg

Reg. 36910

Patent attorney

Almanac IP Advisors LLP

SAN FRANCISCO, CA · 94114

510-912-4226

Michael Radomir Samardzija

Reg. 53545

Patent attorney

Womble Bond Dickinson LLP

Irvine, CA · 92618

657-266-1022

Russell P Sammon

Reg. 56781

Patent agent

San Francisco, CA · 94110

415-722-9175

Common questions

Do I need a patent attorney based in California?

No. Every USPTO-registered patent practitioner is licensed to file applications on behalf of inventors in any state, regardless of where the practitioner's office is. Choosing a California-based practitioner can simplify in-person inventor signings, local meetings, and same-time-zone calls, but it is not a legal requirement.

How many patent attorneys are licensed in California?

9,553 active USPTO-registered patent practitioners list a California office address on the OEDCI roster. This includes both patent attorneys (who can also offer legal advice) and patent agents (who can prepare and file patents but not offer broader legal advice).

What is the difference between a patent attorney and a patent agent?

Both pass the USPTO Patent Bar and can prepare, file, and prosecute patent applications. Only patent attorneys also hold a state bar license, meaning they can additionally offer legal advice on infringement, licensing, and litigation strategy. Patent agents tend to charge less per hour and are common at large in-house IP departments.