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 Leydig, Voit & Mayer, LLP, Novak, Druce, Connolly, Bove & Quigg, LLP, and University Of California, Davis.

Top cities in California

All practitioners in California

Arthur J Bobel

Reg. 69031

Patent attorney

Leydig, Voit & Mayer, LLP

Walnut Creek, CA · 94596-5083

925-482-0100

Marc P Bobys

Reg. 45267

Patent attorney

Los Angeles, CA · 90049

+65-910-88004

Breton A Bocchieri

Reg. 31739

Patent attorney

Novak, Druce, Connolly, Bove & Quigg, LLP

Los Angeles, CA · 90071

213-787-2500

Barbara Ann Boczar

Reg. 41623

Patent attorney

University Of California, Davis

Davis, CA · 95616

530--75-4-8606

William W Bodnar

Reg. 51479

Patent attorney

Law Offices of William Bodnar

Chico, CA · 95926

530-899-7092

Adrienne L. Boerger

Reg. 66192

Patent agent

Cepheid

Sunnyvale, CA · 94089

408-548-9155

Christian D. Boettcher

Reg. 80009

Patent attorney

Morgan, Lewis & Bockius LLP

Costa Mesa, CA · 92626

714-236-0444

Evan E. Boetticher

Reg. 63184

Patent agent

Lewis Roca Rothgerber Christie LLP

San Francisco, CA · 94111

650-687-8435

Keith R Bogdon

Reg. 46562

Patent agent

Coalesce Corporation

Mill Valley, CA · 94941

415-384-3042

Gregory Z. Boger

Reg. 68874

Patent attorney

Procopio, Cory, Hargreaves & Savitch LLP

Irvine, CA · 92618

949-247-7319

J L Bohan

Reg. 20183

Patent attorney

San Jose, CA · 95132

408-209-4639

Patrick T Bohan

Reg. 82293

Patent agent

Chevron Oronite

Richmond, CA · 94801

510-242-5736

Hal Jay Bohner

Reg. 27856

Patent attorney

Law Office Of Hal Bohner

Pacifica, CA · 94044

650-359-4257

Kamil S Bojanczyk

Reg. 74176

Patent agent

Grid Tech IP

Santa Clara, CA · 14850

607-279-8822

Raazia W Bokhari

Reg. 62141

Patent attorney

Law Offices of Raazia Bokhari

Santa Ana, CA · 92701

714-550-9380

Michael J Bolan

Reg. 42339

Patent agent

Vista IP Law Group LLP

Irvine, CA · 92614

Jennifer C. Boles

Reg. 84528

Patent agent

San Diego, CA · 92108

480-241-5865

Douglas G Bolesch

Reg. 56796

Patent attorney

Proskauer Rose LLP

Los Angeles, CA · 90067

310-284-5627

Kimberly A Bolin

Reg. 44546

Patent agent

Cooley LLP

Palo Alto, CA · 94304-1130

650-543-5000

Pamela L Boling

Reg. 70161

Patent attorney

Santa Rosa, CA · 95404

925-321-4463

William C Boling

Reg. 41625

Patent attorney

Boling Patents

San Diego, CA · 92120-1812

619-583-9956

Brooke S. Boll

Reg. 76268

Patent attorney

Sidley Austin, LLP

Los Angeles, CA · 90071

213-896-6633

Jeffrey R. Bolland

Reg. 73759

Patent agent

10x Genomics

Pleasanton, CA · 94588

205-470-6077

Donald Bollella

Reg. 35451

Patent attorney

Skyworks Solutions, Inc.

Irvine, CA · 92617

949-231-3060

Christopher C. Bolten

Reg. 61531

Patent attorney

Greenberg Traurig, LLP

San Diego, CA · 92130

619-848-2507

Miguel J. Bombach

Reg. 68636

Patent attorney

Perkins Coie LLC

San Diego, CA · 92130

858-720-5700

D. Bommi Bommannan

Reg. 39452

Patent attorney

Convergence Intellectual Property Law P.C.

Los Altos, CA · 94024

650-383-7247

George P. Bonanto

Reg. 59717

Patent attorney

Google Inc.

Mountain View, CA · 94043

650-260-8708

Jasmine Kiara Bond

Reg. 900849

Limited recognition

Thomas Jefferson School of Law

San Diego, CA · 92101

Joseph E Bond

Reg. 52633

Patent agent

San Jose, CA · 95112

408-666-4539

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.