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 Wilson Sonsini Goodrich & Rosati, Fish & Richardson P.C., and Adeia, Inc..

Top cities in California

All practitioners in California

Bradford J Goodson

Reg. 55215

Patent attorney

Wilson Sonsini Goodrich & Rosati

Palo Alto, CA · 94304

650-493-9300

Timothy J Goodson

Reg. 58585

Patent attorney

Adeia, Inc.

San Jose, CA · 95134

408-473-2500

Talin Gordnia

Reg. 76214

Patent attorney

Wilson Sonsini Goodrich & Rosati

Los Angeles, CA · 90071

323-210-2925

Alan C Gordon

Reg. 51220

Patent attorney

QUALCOMM Incorporated

San Diego, CA · 92121

858-658-5294

Clark T Gordon

Reg. 74706

Patent attorney

Akin Gump Strauss Hauer & Feld LLP

Irvine, CA · 92614

949-885-4216

Nathan L Gordon· IV

Reg. 63324

Patent attorney

Arcadia, CA · 91006

626-696-5479

Reid W. Gordon

Reg. 84827

Patent agent

san anselmo, CA · 94960

805-798-1896

Medini A Gore

Reg. 68223

Patent agent

Los Altos, CA · 94024

650-967-5176

Vijay K Gore

Reg. 69670

Patent agent

Thermo Fisher Scientific

Carlsbad, CA · 92008

949-308-3423

David J Goren

Reg. 34609

Patent attorney

Fish & Richardson P.C.

Redwood City, CA · 94063

650-839-5070

Lothar Goretzki

Reg. 70433

Patent agent

La Jolla, CA · 92037

858-283-9406

Monica A. Gorman

Reg. 62655

Patent attorney

DLA Piper, LLP

San Diego, CA · 92121-2133

858-677-1451

Susan W Gorman

Reg. 47604

Patent attorney

Gorman IP Law

San Diego, CA · 92130

858-208-4400

Hugh P Gortler

Reg. 33890

Patent attorney

Law Office Of Hugh P Gortler

Mission Viejo, CA · 92692

949-454-0898

Mehrdad Goshtasbpour Parsi

Reg. 82443

Patent attorney

Irvine, CA · 92604

562-713-0644

Frederick Gotha

Reg. 27693

Patent attorney

Frederick Gotha Attorney at Law

Pasadena, CA · 91101

626-796-1849

Jordan E. Gottdank

Reg. 71933

Patent attorney

Knobbe, Martens, Olson & Bear, LLP

Irvine, CA · 92614

858-707-4000

Steven D. Gottke

Reg. 70222

Patent agent

Samsung Semiconductor, Inc.

Menlo Park, CA · 94025

650-804-7303

Kirk A Gottlieb

Reg. 42596

Patent attorney

Fish & Richardson P.C.

Redwood City, CA · 94063

650-839-5070

Howard N Gould

Reg. 52955

Patent attorney

Gould Law

Los Angeles, CA · 90025

310-481-6789

John A Gould

Reg. 69941

Patent agent

Hortonworks

Santa Clara, CA · 95054

267-337-2927

Raju Goyal

Reg. 56954

Patent attorney

Google Inc.

Mountain View, CA · 94043

Robert L Grabarek

Reg. 40625

Patent attorney

Crowell and Moring, LLP

Irvine, CA · 92614

949-798-1343

Lawrence F Grable

Reg. 48148

Patent attorney

Lawrence F. Grable, P.L.L.C.

Stevenson Ranch, CA · 91381

405-204-9712

Troy E Grabow

Reg. 43440

Patent attorney

Grabow Law

San Mateo, CA · 94402

650-204-0850

Jared Michael Graff

Reg. 78744

Patent attorney

Hogan Lovells US LLP

Los Angeles, CA · 90067

310-785-4738

Brian M. Graham

Reg. 72423

Patent attorney

Novak Druce Connolly Bove Quigg LLP

San Francisco, CA · 94105

415-814-6161

Brian J. Graham

Reg. 72356

Patent attorney

Hermosa Beach, CA · 90254

432-528-7800

David R Graham

Reg. 36150

Patent attorney

Milpitas, CA · 95035

408-836-2158

Lawrence S Graham

Reg. 49020

Patent attorney

Genentech

South San Francisco, CA · 94080

858-334-9985

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.