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 VLP Law Group LLP, North Weber and Baugh LLP, and The Scripps Research Institute.

Top cities in California

All practitioners in California

Lawrence G Norris

Reg. 18034

Patent attorney

Palm Desert, CA · 92211

760-360-8890

Lisa A Norris

Reg. 44976

Patent attorney

Seaside, CA · 93955

831-393-2419

Peter L. Norseth

Reg. 64821

Patent attorney

VLP Law Group LLP

Palo Alto, CA · 94301

435-294-2709

Michael V North

Reg. 46963

Patent attorney

North Weber and Baugh LLP

Palo Alto, CA · 94303

650-856-7564

Thomas E Northrup

Reg. 33268

Patent agent

The Scripps Research Institute

La Jolla, CA · 92037

858-784-2937

Heather R Norton

Reg. 75002

Patent agent

Law Office of Heather Norton

San Francisco, CA · 94127

415-379-4171

Vicki G Norton

Reg. 40745

Patent attorney

Duane Morris LLP

San Diego, CA · 92101

619-744-2264

Glenn K Norum

Reg. 50507

Patent agent

Fullerton, CA · 92831

714-526-8970

Vernon A Norviel

Reg. 32483

Patent attorney

Wilson Sonsini Goodrich and Rosati

Palo Alto, CA · 94301

650-320-4704

Kevin Noson

Reg. 70494

Patent agent

Squire Patton Boggs LLP

San Francisco, CA · 94111

415-393-9816

Amy P Noss

Reg. 65394

Patent attorney

Encinitas, CA · 92024

858-869-5668

Shahrzad Nouraini

Reg. 56425

Patent agent

Vista, CA · 92081

760-727-9734

Sheri M Novack

Reg. 32526

Patent attorney

Palo Alto, CA · 94301

Brian J Novak

Reg. 62340

Patent attorney

K&L Gates LLP

Irvine, CA · 92614

949-253-0900

Christopher R Novak

Reg. 42041

Patent attorney

San Jose, CA · 95150

408-396-7567

Jason J Novak

Reg. 65774

Patent attorney

Haynes and Boone, LLP

Palo Alto, CA · 94301

650-687-8800

Paul G Novak

Reg. 55504

Patent attorney

Los Angeles, CA · 90067-3109

805-428-5948

Michael J Noveck

Reg. 74251

Patent attorney

North Hills, CA · 91343

818-568-5948

Antony M Novom

Reg. 45517

Patent attorney

Fate Therapeutics, Inc.

San Diego, CA · 92131

858-500-7321

Cyrus S Nownejad

Reg. 22314

Patent attorney

Law Offices Of Cyrus S Nownejad & Associates

Beverly Hills, CA · 90210

310-440-0222

Philip Angelo L Nulud

Reg. 70783

Patent attorney

Buchalter Nemer

Los Angeles, CA · 90017

213-630-5709

Jose M Nunez

Reg. 59979

Patent attorney

Schwegman Lundberg & Woessner P.A.

San Jose, CA · 95113

612-373-6900

David N Nunn· Jr.

Reg. 74419

Patent agent

Carlsbad, CA · 92009

858-232-3896

Eric J Nuss

Reg. 40106

Patent attorney

Loza & Loza, LLP

Upland, CA · 91786

202-878-7735

Eric W. Nussbaum

Reg. 72915

Patent attorney

Irvine, CA · 92614-7063

949-280-6771

Torrie C Nute

Reg. 54770

Patent agent

Campbell, CA · 95008

408-835-5351

Glen L Nuttall

Reg. 46188

Patent attorney

Klein, O'Neill & Singh, LLP

Irvine, CA · 92606

949-955-1920

Savannah E. G. Nuttall

Reg. 82888

Patent attorney

YHE Law LLP

Lafayette, CA · 94549

415-662-0144

William E Nuttle

Reg. 42943

Patent attorney

Foster City, CA · 94404

650-207-3418

Kirk M Nuzum

Reg. 38983

Patent attorney

Buchanan Ingersoll & Rooney PC

San Diego, CA · 92101-3387

619-685-1938

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.