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 Amgen Inc., Akash Systems, Inc., and TP-Link Global.

Top cities in California

All practitioners in California

Stuart L Watt

Reg. 32511

Patent attorney

Amgen Inc.

Thousand Oaks, CA · 91320

805-447-2154

Frank Wattles

Reg. 24311

Patent attorney

Manhattan Beach, CA · 90266

310-372-0454

Rebeka L. Watton

Reg. 70128

Patent attorney

Akash Systems, Inc.

San Francisco, CA · 94108

813-409-8799

Bradley A Waugh

Reg. 48026

Patent attorney

TP-Link Global

Irvine, CA · 92618

949-333-1272

Richard E Wawrzyniak

Reg. 36048

Patent attorney

Fitch, Even, Tabin & Flannery LLP

San Diego, CA · 92130

858-552-1311

Jeffrey S Wax

Reg. 51364

Patent attorney

Wax Law Group

Sacramento, CA · 95814

916-575-9500

Aaron M Waxler

Reg. 48027

Patent attorney

NXP Semiconductors

San Jose, CA · 95131

408-474-5029

Brian H Way

Reg. 47171

Patent attorney

Dolby Laboratories, Inc.

San Francisco, CA · 94103

415-558-0200

Joseph R Weatherbee

Reg. 64810

Patent attorney

San Jose, CA · 95126

408-234-6462

Kenneth James Weatherwax

Reg. 54528

Patent attorney

GOLDBERG, LOWENSTEIN & WEATHERWAX LLP

Los Angeles, CA · 90064

310-307-4503

Gregory S Weaver

Reg. 53751

Patent attorney

Technicolor USA, Inc.

Burbank, CA · 91502

818-480-5064

Jeffrey K Weaver

Reg. 31314

Patent attorney

Weaver Austin Villeneuve & Sampson LLP

Oakland, CA · 94612-0250

510-663-1100

Dean M. Webb

Reg. 73234

Patent agent

Vacaville, CA · 95687

415-416-8216

Mary Sharon Webb

Reg. 47172

Patent attorney

Explora IP, P.C.

San Francisco, CA · 94115

617-306-6887

Steven W Webb

Reg. 43246

Patent attorney

Law Offices of Steven W. Webb

Oceanside, CA · 92057

760-295-9930

Susan A Webb

Reg. 51104

Patent agent

Palo Alto, CA · 94303

650-857-0556

David C Weber

Reg. 51149

Patent agent

LIFE TECHNOLOGIES CORPORATION

Carlsbad, CA · 92008

760-476-4347

Ellen Lauver Weber

Reg. 32762

Patent attorney

Mill Valley, CA · 94941

415-516-4040

Emily N Weber

Reg. 79973

Patent attorney

Desmarais LLP

San Francisco, CA · 94111

415-573-1858

Eric J Weber

Reg. 70743

Patent attorney

HGST

San Jose, CA · 95135

650-996-1606

Genevieve L Weber

Reg. 78520

Patent attorney

McNeill PLLC

San Diego, CA · 92108

458-227-9702

Kenneth A Weber

Reg. 31677

Patent attorney

KILPATRICK TOWNSEND & STOCKTON, LLP

San Francisco, CA · 94111

415-273-4714

Michael Ryan Weber

Reg. 50951

Patent attorney

Law Office of Michael Weber

San Francisco, CA · 94109

415-377-0827

Olivia D. Weber

Reg. 78490

Patent agent

SHIP Global IP

Austin, CA · 78758

512-507-8995

W. Eric Webostad

Reg. 35406

Patent attorney

Walnut Creek, CA · 94598-3739

925-932-9229

Bryan E Webster

Reg. 47214

Patent attorney

eBay Inc.

San Jose, CA · 95125

408-376-6936

Melanie K Webster

Reg. 45201

Patent agent

Neurogenetics, Inc.

LaJolla, CA · 92037

858-623-5665 X163

Thomas C Webster

Reg. 46154

Patent attorney

Nicholson, De Vos, Webster & Elliott, LLP

Palo Alto, CA · 94301

Thomas M Webster

Reg. 22814

Patent agent

Mountain View, CA · 94040

650-965-0569

Lowell R Wedemeyer

Reg. 32010

Patent attorney

Lowell R. Wedemeyer, Lawyer

Rancho Palos Verdes, CA · 90275

310-704-6393

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.