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 Tchakerian Law, Qualcomm Incorporated, and Perkins Cole LLP.

Top cities in California

All practitioners in California

Sharon L Taylor

Reg. 43948

Patent attorney

Garden Grove, CA · 92843

714-530-8155

Shant H. Tchakerian

Reg. 61825

Patent attorney

Tchakerian Law

Glendale, CA · 91203

760-814-1738

Shirin Tefagh

Reg. 67407

Patent attorney

Qualcomm Incorporated

San Diego, CA · 92121

858-658-4351

Babak Tehranchi

Reg. 55937

Patent attorney

Perkins Cole LLP

San Diego, CA · 92130-2594

858-720-5734

Karishma H Tejwani

Reg. 75188

Patent attorney

Allergan Inc.

Irvine, CA · 92612

714-246-4596

Joseph M. Teleoglou

Reg. 65227

Patent attorney

JT IP Law

Costa Mesa, CA · 92627

714-329-5118

Mathew J Temmerman

Reg. 54487

Patent attorney

Temmerman Law Office

Davis, CA · 95616

530-750-3661

Claire L. Templeman

Reg. 77120

Patent agent

Los Angeles, CA · 90013

626-264-0292

D Morgan Tench

Reg. 48605

Patent agent

Tench Technology

Camarillo, CA · 93010

805-482-8695

Faye H. Teng

Reg. 62444

Patent attorney

Pasadena, CA · 91106

650-260-8562

Mack M Teng

Reg. 77332

Patent agent

San Jose, CA · 95125

408-429-5845

Poh K Teng

Reg. 77528

Patent agent

Kilpatrick Townsend & Stockton LLP

Walnut Creek, CA · 94596

925-817-3133

Vladislav Z Teplitskiy

Reg. 68069

Patent attorney

Knobbe Martens Olson & Bear LLP

Irvine, CA · 92614

949-721-5308

Louis F Teran

Reg. 61407

Patent agent

SLC Law Group

Pasadena, CA · 91106

818-484-3217

Christina N Terplan

Reg. 58111

Patent attorney

Atheria Law

San Francisco, CA · 94104

415-215-4018

Zachary L. Terranova

Reg. 74945

Patent agent

Mintz Levin

San Diego, CA · 92130

858-314-1500

Lynn M Terrebonne

Reg. 54488

Patent attorney

Raj Abyanker, PC

Mountain View, CA · 94109

650-955-8731

Sarah K Terry

Reg. 72936

Patent agent

Santa Barbara, CA · 93110

805-680-0394

Calif K Tervo

Reg. 31308

Patent attorney

Palomar Patent

San Diego, CA · 92111

619-234-4034

Nareh S Terzian

Reg. 78761

Patent attorney

ANTN LAW APC

Burbank, CA · 91502

818-300-6946

John William Tessman

Reg. 43949

Patent agent

San Ramon, CA · 94583

925-997-7598

Timothy S Teter

Reg. 47134

Patent attorney

Cooley Godward LLP

Palo Alto, CA · 94306

650-843-5000

Michael W. Tezyan

Reg. 79808

Patent attorney

Irell & Manella, LLP

Los Angeles, CA · 90067-4276

310-203-7536

Meera Thakoor

Reg. 48296

Patent attorney

Hickman Palermotruong and Becker LLP

San Jose, CA · 95125

408-414-1080

Devang K Thakor

Reg. 79862

Patent attorney

Procopio, Cory, Hargreaves & Savitch LLP

Palo Alto, CA · 94306

650-645-9000

Nirav K Thakor

Reg. 72213

Patent agent

Polygon IP, LLP

Menlo Park, CA · 94025

650-699-6750

Amardeep L Thakur

Reg. 43950

Patent attorney

Quinn Emanuel

Los Angeles, CA · 90017

213-443-3263

Neeta C Thakur

Reg. 59123

Patent attorney

Sheppard, Mullin, Richter & Hampton LLP

Palo Altos, CA · 94301

650-815-2600

Christopher S Tharpe

Reg. 61659

Patent attorney

San Francisco, CA · 94115

415--89-6-4733

Twinkle D. Tharwala

Reg. 80079

Patent agent

Kubota & Basol LLP

Los Angeles, CA · 90071

213-297-1178

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.