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 Jacob Schroeder, Zilka-Kotab, PC, and Seager, Tufte & Wickhem, LLC.

Top cities in California

All practitioners in California

Jacob A Schroeder

Reg. 58221

Patent attorney

Jacob Schroeder

Palo Alto, CA · 94304-1203

650-849-6765

Jennifer M Schroeder

Reg. 66868

Patent agent

San Francisco, CA · 94121

415-312-7786

Marcella Anne Billstrom Schroeder

Reg. 73322

Patent agent

Zilka-Kotab, PC

San Jose, CA · 95112

408-656-2402

Mark R Schroeder

Reg. 53566

Patent attorney

Seager, Tufte & Wickhem, LLC

San Juan Capistrano, CA · 92675

612-445-7864

Nancy L. Schroeder

Reg. 75538

Patent attorney

Wilmer Hale LLP

Los Angeles, CA · 90071

213-443-5393

Philip C Schroeder

Reg. 54429

Patent attorney

Buchalter Nemer

Irvine, CA · 92612

949-224-6241

Robert Alan Schroeder

Reg. 25373

Patent attorney

Sheldon, Mak, Rose & Anderson, PC

Pasadena, CA · 91103

626-358-1270

Steven D Schroeder

Reg. 52198

Patent attorney

Inheritance Funding Company, Inc.

San Francisco, CA · 94104

415-782-5217

Peter W Schroen

Reg. 78757

Patent agent

Bozicevic, Field and Francis LLP

San Franciso, CA · 94105

415-230-8184

Robert A Schruhl

Reg. 34925

Patent attorney

American Super Cars & Prototypes, LLC

Fallbrook, CA · 92088

888-658-2727

Charles Eric Schulman

Reg. 43350

Patent attorney

Palo Alto, CA · 94302

617-230-6012

Richard J Schulte

Reg. 35350

Patent attorney

San Ramon, CA · 94582

925-984-0240

Jason B. Schultz

Reg. 74740

Patent attorney

10X Genomics

Pleasanton, CA · 94588-3260

925-401-7300

Sandra Sue Schultz

Reg. 29436

Patent attorney

Oakland, CA · 94618

510-549-9224

Suk Hen Chow Schultz

Reg. 76157

Patent attorney

Ionis Pharmaceuticals, Inc.*

Carlsbad, CA · 92010

818-448-3480

Grace Y. Schulz

Reg. 60774

Patent agent

San Carlos, CA · 94070

650-637-1831

Herbert Richard Schulze

Reg. 30682

Patent attorney

Truckee, CA · 96161

530-414-8016

Kristen L. Schunter

Reg. 76519

Patent agent

Perkins Coie

Palo Alto, CA · 94304

650-838-4801

Marc P Schuyler

Reg. 35675

Patent attorney

Law Office of Marc P. Schuyler

Saratoga, CA · 95070

408-655-6375

Bruce Weiman Schwab

Reg. 22321

Patent attorney

Bruce W. Schwab

Berkeley, CA · 94708

510-527-0976

George Marcus Schwab

Reg. 25748

Patent attorney

Law Officer of George M. Schwab

San Francisco, CA · 94111

415-889-5210

Joseph A. Schwar

Reg. 64576

Patent attorney

Redondo Beach, CA · 90277

310-528-7928

Avraham Schwartz

Reg. 63821

Patent attorney

Edwards Lifesciences

Irvine, CA · 92614

949-250-1358

Charles H Schwartz

Reg. 20472

Patent attorney

Moldex-Metric INC

Culver City, CA · 90232

310-273-1586

Edward Richard Schwartz

Reg. 31135

Patent attorney

Lewis Roca Rothgerber Christie LLP

Glendale, CA · 91209-9001

626-795-9900

Jason J Schwartz

Reg. 43910

Patent attorney

Encino, CA · 91416

323-383-4378

Krista S Schwartz

Reg. 42134

Patent attorney

Willkie Farr & Gallagher

San Francisco, CA · 94111

415-858-7435

Sarah Barone Schwartz

Reg. 40284

Patent attorney

Danville, CA · 94506

925-406-4799

Timothy Ryall Schwartz

Reg. 32171

Patent attorney

Genentech, Inc.

South San Francisco, CA · 94080-4990

650-225-7467

Jeremy A Schweigert

Reg. 56244

Patent attorney

Alpine Tech Law Group LLC

San Jose, CA · 95128

408-341-5340

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.