California

Patent attorneys in California

California hosts 9,567 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 Alston & Bird LLP, Morrison & Foerster, LLP, and JC Patents.

Top cities in California

All practitioners in California

Henry R Huang

Reg. 83623

Patent attorney

Midway City, CA · 92655

939-717-7666

Hsin-Yi Cindy Huang

Reg. 53044

Patent attorney

Alston & Bird LLP

Menlo Park, CA · 94025

650-838-2000

Huang Huang

Reg. 79669

Patent attorney

Morrison & Foerster, LLP

San Diego, CA · 92130

858-314-7791

James J Huang

Reg. 75220

Patent attorney

Santa Clara, CA · 95051

650-670-8807

Jiawei Huang

Reg. 43330

Patent agent

JC Patents

Irvine, CA · 92618

949-660-0761

Jingyuan Huang

Reg. 74962

Patent attorney

Perkins Coie LLP

Palo Alto, CA · 94304-1212

650-838-4448

Ke Huang

Reg. 79476

Patent agent

San Marcos, CA · 92078

714-869-8352

Lenny Huang

Reg. 67891

Patent attorney

Burke Williams and Sorensen, LLP

San Jose, CA · 95113

408-606-6300

Liang Huang

Reg. 67016

Patent attorney

Maschoff Brennan

San Francisco, CA · 94111

415-738-6328

Philip YongYoung Huang

Reg. 71300

Patent agent

Morgan, Lewis & Bockius, LLP

Palo Alto, CA · 94304

650-843-4000

Tao Huang

Reg. 60008

Patent attorney

San Carlos, CA · 94070

650-646-2918

Terry N Huang

Reg. 66423

Patent attorney

Kirkland & Ellis LLP

Los Angeles, CA · 90071

213-680-8145

Victor Huang

Reg. 60050

Patent attorney

Law Office of Victor Huang

Dublin, CA · 94568

510-305-2366

Wenrong Huang

Reg. 58012

Patent attorney

Campbell, CA · 95008

408-318-7183

Yuanhui Huang

Reg. 73070

Patent agent

Dublin, CA · 94568

626-715-9185

Joanna Liebes Hubberts

Reg. 71499

Patent attorney

Cooley, LLP

Palo Alto, CA · 94304-1130

650-843-5098

Linda Boi Huber

Reg. 56461

Patent attorney

Nixon Peabody LLP

Los Angeles, CA · 90071-3151

213-629-6000

Susan T Hubl

Reg. 47668

Patent agent

GENENTECH, INC

South San Francisco, CA · 94080

650-763-7326

Shehzad K Huda

Reg. 68661

Patent agent

Irvine, CA · 92618

951-743-2746

Jessica A Hudak

Reg. 61085

Patent attorney

Edwards Lifesciences Corp.

Irvine, CA · 92614

949-250-8921

Benjamin F Hudson

Reg. 71474

Patent agent

Pillsbury Winthrop Shaw Pittman LLP

San Diego, CA · 92130-4088

858-847-4105

Mark R. Huebscher

Reg. 60796

Patent attorney

San Diego, CA · 92129

619-249-4598

Pablo S. Huerta

Reg. 66205

Patent attorney

Cathedral City, CA · 92234

415-728-7147

Russell T Huffman

Reg. 63999

Patent agent

Self

Burlingame, CA · 94010

650-996-7079

Casey R. Huffmire

Reg. 60085

Patent attorney

Canon U.S.A.

Irvine, CA · 92612-2426

949-932-3188

Curtis R Huffmire

Reg. 48877

Patent attorney

Knobbe, Martens, Olsen & Bear LLP

Irvine, CA · 92614

949-760-0404

Anne E Huffsmith

Reg. 57041

Patent attorney

Napa, CA · 94558

415-938-7453

Colin O. Hughes

Reg. 72172

Patent attorney

Neurocrine Biosciences, Inc.

San Diego, CA · 92130

858-354-7752

Daniel P. Hughes

Reg. 76592

Patent attorney

Knobbe Martens Olson & Bear LLP

Irvine, CA · 92614

858-707-4000

Melya Jane Hughes

Reg. 38696

Patent agent

Poway, CA · 92064

650-862-8452

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?

9,567 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.