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 Roland Corporation US, Dickinson Wright RLLP, and The Eclipse Group, LLC.

Top cities in California

All practitioners in California

Joseph F Von Sauers· III

Reg. 37253

Patent attorney

Roland Corporation US

Los Angeles, CA · 90040-2938

323-890-3721

Steven R Vosen

Reg. 45186

Patent agent

Dickinson Wright RLLP

Mountain View, CA · 94043

408-701-6122

Nancy C. Vosnidou

Reg. 59676

Patent agent

Davis, CA · 95618

530-902-8727

Anna M Vradenburgh

Reg. 39868

Patent attorney

The Eclipse Group, LLC

Encino, CA · 91316

818-488-8146

Chuong L. Vu

Reg. 58527

Patent attorney

Counsel

Irvine, CA · 92602

949-232-0721

Kenneth K D Vu

Reg. 46323

Patent attorney

Qualcomm, Inc.

San Diego, CA · 92121

858-658-5106

Laura N. Vu

Reg. 79752

Patent attorney

Haynes and Boone, LLP

San Francisco, CA · 94104

415-293-8930

Lloyd H Vu

Reg. 61452

Patent attorney

Manhattan Beach, CA · 90266

213-700-1081

Martin K. H. Vu

Reg. 82137

Patent attorney

Winchester, CA · 92596

951-923-4100

Peter Vu

Reg. 73233

Patent agent

Marina, CA · 93933

831-869-5133

Uyen Thuc Vu

Reg. 51073

Patent attorney

San Jose, CA · 95112

408-505-5243

Vy H. Vu

Reg. 66375

Patent attorney

Alford Law Group, Inc.

Mission Viejo, CA · 92692

949-556-3013

Sasha Vujcic

Reg. 76485

Patent agent

Paul Hastings LLP

San Diego, CA · 92121

858-458-3002

Paul M Vuksich

Reg. 31577

Patent attorney

Law Office of Paul Michael Vuksich

San Francisco, CA · 94104

415-788-7045

Vincent J Wacher

Reg. 54518

Patent agent

V. J. Wacher Consulting

Carlsbad, CA · 92009

760-944-3571

Erik D Wachowiak

Reg. 43226

Patent attorney

San Diego, CA · 92111

858-874-2100

Michael L Wachtell

Reg. 25098

Patent attorney

Buchalter Nemer P.C.

Los Angeles, CA · 90017

213-891-5460

Brian Wacter

Reg. 63851

Patent attorney

Apple INC.

Cupertino, CA · 95014

669-227-3892

Joshua C Wade

Reg. 70790

Patent attorney

La Crescenta, CA · 91214

818-823-7705

Sanford S Wadler

Reg. 27015

Patent attorney

San Ramon, CA · 94582

925-234-5844

Mark E Wadrzyk

Reg. 45187

Patent attorney

Snap Inc.

Santa Monica, CA · 90405

424-214-0156

Philip R Wadsworth

Reg. 29219

Patent attorney

Qualcomm INC

San Diego, CA · 92121

858-651-4404

Raymond C Wagenknecht

Reg. 50948

Patent attorney

Wagenknecht IP Law Group PC

San Diego, CA · 92130

858-592-4141

Allen B Wagner

Reg. 29738

Patent attorney

Berkeley, CA · 94707

510-527-7110

Ching-Shu C Wagner

Reg. 72214

Patent attorney

San Francisco, CA · 94109

765-425-1142

Cristin A Wagner

Reg. 75010

Patent attorney

Acacia Research Group, LLC

Newport Beach, CA · 92660

949-480-8336

Jackson C. Wagner

Reg. 83215

Patent agent

Fremont, CA · 94538

559-696-3352

John P Wagner· Jr

Reg. 35398

Patent attorney

Wagner Blecher LLP

Watsonville, CA · 95076

408-234-3649

Michael J Wagner

Reg. 39062

Patent attorney

Quest Diagnostics Incorporated

San Juan Capistrano, CA · 92675

949-940-7360

Robert Paul Wagner

Reg. 51362

Patent attorney

Granite Bay, CA · 95746

323-708-3426

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.