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 Irell & Manella, LLP, Nelson Mullins Riley & Scarborough LLP, and Orrick Herrington & Sutcliffe LLP.

Top cities in California

All practitioners in California

Melissa C. Lu

Reg. 82033

Patent agent

Cupertino, CA · 95014

408-300-2476

Raymond S. Lu

Reg. 83166

Patent attorney

Irvine, CA · 92602

281-704-2930

Samuel K Lu

Reg. 40707

Patent attorney

Irell & Manella, LLP

Los Angeles, CA · 90067

310-277-1010

Simon K Lu

Reg. 51974

Patent attorney

Belmont, CA · 94002

650-592-3510

Wei Y. Lu

Reg. 73770

Patent attorney

Sunnyvale, CA · 94089

510-984-4523

Ying Lu

Reg. 80468

Patent agent

Nelson Mullins Riley & Scarborough LLP

Torrance, CA · 90502

424-221-7431

Yite J Lu

Reg. 63158

Patent attorney

Orrick Herrington & Sutcliffe LLP

Los Angeles, CA · 90071

213-612-2374

Yun L Lu

Reg. 72766

Patent attorney

Foley & Lardner LLP

San Diego, CA · 92130

858-847-6759

Zhou Lu

Reg. 57248

Patent attorney

Nixon Peabody LLC

San Francisco, CA · 94111-3600

415-984-8243

Christopher R Lubeck

Reg. 62578

Patent attorney

Luminar Technologies, Inc.

Palo Alto, CA · 94304

510-282-6860

Paul Terry Lubeck

Reg. 25890

Patent attorney

Sam Rafael, CA · 94903

415-554-7701

Laurie Rose L Lubiano

Reg. 67784

Patent attorney

The Climate Corporation

San Francisco, CA · 94103

650-291-6974

Lee D Lubin

Reg. 70843

Patent attorney

Law Office of Lee David Lubin, Inc.

Encino, CA · 91436

818-728-0712

Stuart Lubitz

Reg. 20680

Patent attorney

DLA Piper

Los Angeles, CA · 90067-4704

310-595-3132

Abigail Lubow

Reg. 75839

Patent attorney

Menlo Park, CA · 94025

415-828-1669

Eric S Lucas

Reg. 34215

Patent attorney

Self

Laguna beach, CA · 92651

949-939-3216

Jan G. Lucas

Reg. 75531

Patent attorney

Cisco Systems, Inc.

San Francisco, CA · 94158

628-263-9300

Michael A Lucero

Reg. 80683

Patent agent

Walnut, CA · 91789

909-706-5168

Michael Lester Ludwig

Reg. 53244

Patent agent

Los Angeles, CA · 90064

310-312-5551

Wen-Jeng Lue

Reg. 56564

Patent agent

Sunnyvale, CA · 94087

408-720-1624

Gary D Lueck

Reg. 50791

Patent attorney

Vista IP Law Group LLP

Irvine, CA · 92618

310-613-7739

Dustin M Luettgen

Reg. 77922

Patent attorney

SonoThera, Inc.

South San Francisco, CA · 94080

505-979-8787

Douglas B Luftman

Reg. 43762

Patent attorney

DocuSign, Inc.

San Francisco, CA · 94105

408-205-3500

Jennifer Luh

Reg. 70917

Patent attorney

Morrison & Foerster LLP

San Francisco, CA · 94105

415-268-7000

Peggy H Luh

Reg. 47761

Patent attorney

Fullerton, CA · 92834

714-871-9586

Karen J Lujan

Reg. 55410

Patent agent

Monrovia, CA · 91016

626-716-1709

Rimas T Lukas

Reg. 46451

Patent attorney

Carlsbad, CA · 92008

760-787-6377

Todd M. Lukes

Reg. 73873

Patent agent

Mendocino, CA · 95460

831-588-5643

Jerry Norair Lulejian

Reg. 30473

Patent attorney

Jerry N. Lulejian, Attorney at Law

Pismo Beach, CA · 93449

805-709-2631

Albert J Lum

Reg. 41957

Patent attorney

Law Office of A. Justin Lum

Pasadena, CA · 91106

626-795-8886

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.