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 Foley & Lardner LLP, CrowdStrike, Inc., and Quinn Emanuel Urquhart & Sullivan, LLP.

Top cities in California

All practitioners in California

Benjamin Hong Huh

Reg. 61207

Patent attorney

CrowdStrike, Inc.

Sunnyvale, CA · 94086

188-851-28906

Natalie Charlie Huh

Reg. 77738

Patent attorney

Quinn Emanuel Urquhart & Sullivan, LLP

Redwood City, CA · 94065

650-801-5121

Raymond M Huie

Reg. 61489

Patent attorney

San Francisco, CA · 94121

415-418-0016

Wade Stuart Hulac

Reg. 50741

Patent agent

Chino Hills, CA · 91709

714-961-0492

Amy L Hulina

Reg. 41556

Patent agent

Watson Pharmaceuticals, Inc.

Corona, CA · 92880

951-493-5956

George Z Hull· IV

Reg. 68856

Patent agent

Santa Clara, CA · 95050

408-905-9022

Hans P Hull

Reg. 54192

Patent agent

Avalanche Biotechnologies, Inc.

Menlo Park, CA · 94025

415-772-6000

Jonathan J. Hull

Reg. 73086

Patent agent

San Carlos, CA · 94070

650-496-5719

Kathryn K Hull

Reg. 57115

Patent attorney

Illumina, Inc.

San Diego, CA · 92122

858-208-3913

Matthew R Hulse

Reg. 44786

Patent attorney

Cerebras Systems Inc.

Sunnyvale, CA · 94085

408-585-5205

Robert A Hulse

Reg. 48473

Patent attorney

Fenwick & West LLP

Mountain View, CA · 94041

415-875-2444

Matthew J Hult

Reg. 48345

Patent attorney

Orrick, Herrington & Sutcliffe LLP

Menlo Park, CA · 94025-1021

650-614-7400

Charles T Hultgren

Reg. 63937

Patent agent

Luminar Technologies

San Carlos, CA · 94070

650-576-6502

Adrienne E. Hunacek

Reg. 66361

Patent attorney

Foley & Lardner LLP

Palo Alto, CA · 94304

650--85-6-3700

Howah Hung

Reg. 76688

Patent attorney

Design Therapeutics, Inc.

Carlsbad, CA · 92011

442-359-5426

Richard S J Hung

Reg. 43684

Patent attorney

Morrison & Foerster LLP

San Francisco, CA · 94105

415-268-7000

Dale C Hunt

Reg. 41857

Patent attorney

Plant & Planet Law Firm

San Diego, CA · 92130

213-529-1111

Gregory P. Hunt

Reg. 69269

Patent attorney

Montrose, CA · 91020

818-568-4172

Heather L Hunt

Reg. 51826

Patent agent

Grover Beach, CA · 93433

805-473-8695

Marcus T. Hunt

Reg. 66577

Patent attorney

MT HUNT LAW

PISMO BEACH, CA · 93448

415-993-5400

Paul S Hunter

Reg. 44787

Patent attorney

Foley & Lardner LLP

San Diego, CA · 92130

858-847-6733

Tom Hunter

Reg. 38498

Patent attorney

Weaver Austin Villeneuve & Sampson LLP

Oakland, CA · 94607

510-663-1100

William E Hunter

Reg. 47671

Patent attorney

Fish & Richardson P.C.

San Diego, CA · 92130

858-678-4707

Julia Hunting

Reg. 69348

Patent attorney

Orinda, CA · 94563

925-285-4712

Jason F Hunzinger

Reg. 51827

Patent agent

Qualcomm INC

San Diego, CA · 92121

858-845-3596

Karen T Huoth

Reg. 57381

Patent attorney

Hulu

Santa Monica, CA · 90404

310-571-4715

Robert M Hupe

Reg. 44789

Patent attorney

Virco Mfg. Corporation

Torrance, CA · 90501

310-533-0474

Ian M Hurst

Reg. 80914

Patent attorney

Covington & Burling LLP

Los Angeles, CA · 90067

424-303-6523

James Y. Hurt

Reg. 79121

Patent attorney

Sheppard Mullin

San Diego, CA · 92130

858-720-8959

Nicholas S Hurt

Reg. 65204

Patent agent

Walnut Creek, CA · 94597

831-419-2609

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.