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 Morrison & Foerster LLP, Law Office of Karolyn E. Kovtun, and UCLA Technology Development Group.

Top cities in California

All practitioners in California

Robert J Kovach

Reg. 51896

Patent agent

Mountain View, CA · 94040

650-965-4272

Paul Hilary Kovelman

Reg. 35228

Patent attorney

Simi Valley, CA · 93063

818-359-0715

Karolyn E Kovtun

Reg. 41912

Patent attorney

Law Office of Karolyn E. Kovtun

San Diego, CA · 92101

619-234-0600

Debolina Kowshik

Reg. 74638

Patent attorney

UCLA Technology Development Group

Los Angeles, CA · 90024

310-983-3198

Lukasz P. Koziol

Reg. 80087

Patent agent

Knobbe, Martens, Olson & Bear, LLP

Irvine, CA · 92614

212-849-3049

John M. Kozlowski

Reg. 82124

Patent agent

Cooley LLP

San Diego, CA · 92121-1117

858-550-6056

Gabriel Patrick Kralik

Reg. 34855

Patent attorney

Gawfco Enterprises, Inc.

Lafayette, CA · 94549

925-979-0560

Noreen A Krall

Reg. 39734

Patent attorney

Apple, Inc.

Cupertino, CA · 95014

408-862-5159

Brian M Kramer

Reg. 48994

Patent attorney

Morrison & Foerster LLP

San Diego, CA · 92130

858-720-5100

Dylan K. Kramer

Reg. 81154

Patent agent

Costa Mesa, CA · 92626

949-616-2287

Karen J Kramer

Reg. 33935

Patent attorney

Redwood City, CA · 94063

650-362-3560

Michael S. Kramer

Reg. 58670

Patent attorney

Qualcomm Incorporated

San Diego, CA · 92121

858-845-8283

Price Q Kramer

Reg. 81063

Patent attorney

Pillsbury Winthrop Shaw Pittman LLP

Palo Alto, CA · 94304

650-233-4540

Robert F Kramer

Reg. 51242

Patent agent

O'Banion & Ritchey, LLP

Sacramento, CA · 95814

916-498-1010

Elliott Nason Kramsky

Reg. 27812

Patent attorney

Elliott N. Kramsky

Woodland Hills, CA · 91364

818-224-3651

Diane Gabl Kratz

Reg. 67281

Patent attorney

Dolby Laboratories

San Francisco, CA · 94103

415-558-0200

Andrew E Krause

Reg. 76276

Patent attorney

Irell & Manella, LLP

Los Angeles, CA · 90067

310-277-1010

Eric A Krause

Reg. 62329

Patent attorney

San Francisco, CA · 94111

415-343-4486

Randall C Krause

Reg. 53158

Patent agent

Campbell, CA · 95008

408-378-4080

Juergen Krause-Polstorff

Reg. 41127

Patent attorney

Saratoga, CA · 95070

Warren J Krauss

Reg. 25543

Patent attorney

Sedgwick Law

San Francisco, CA · 94104

415-781-7900

Alexander Krayner

Reg. 60854

Patent attorney

Beverly Hills, CA · 90212

310-227-8877

George G. Krboyan

Reg. 80418

Patent agent

Enso Law L.L.P

Sherman Oaks, CA · 91403

818-822-9772

Brian D. Krechman

Reg. 60399

Patent attorney

U.S. District Court

Los Angeles, CA · 90012

213-894-3885

Matthew I Kreeger

Reg. 56398

Patent attorney

Morrison & Foerster LLP

San Francisco, CA · 94105

415-268-7000

Max J Kreifeldt

Reg. 63152

Patent agent

La Mesa, CA · 91941

619-312-0526

Lance M Kreisman

Reg. 39256

Patent attorney

Peninsula Patent Group

Santa Cruz, CA · 95060

650-468-9654

Alexander M. Kremen

Reg. 73872

Patent agent

San Francisco, CA · 94115

510-325-8275

Michelle Esteban Kremen

Reg. 59880

Patent agent

Splunk Inc.

San Francisco, CA · 94107

415-848-8413

Daniel M. Kremer

Reg. 83550

Patent agent

Womble Bond Dickinson

San Diego, CA · 92121

858-313-1406

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.