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 Ardian, Inc., California Institute of Technology, and Watson Law Group.

Top cities in California

All practitioners in California

Karun D Naga

Reg. 52057

Patent attorney

Ardian, Inc.

Palo Alto, CA · 94303

650-496-5525

Ted T. Nagai

Reg. 77857

Patent attorney

Pasadena, CA · 91107

310-925-9751

John M. Nagarah

Reg. 78958

Patent agent

California Institute of Technology

Pasadena, CA · 91125

626-395-3269

Tom T Nagashima

Reg. 53364

Patent attorney

Watson Law Group

Pasadena, CA · 91101

213-785-1400

Ashish Nagdev

Reg. 62383

Patent attorney

Sidley Austin LLP

Palo Alto, CA · 94304

650-565-7000

Robert D Nagel

Reg. 45353

Patent attorney

Applied Medical Resources Corporation

Rancho Santa Margarita, CA · 92688

949-713-8561

Andrew S Naglestad

Reg. 47814

Patent attorney

IDEALAB

Pasadena, CA · 91103

626-685-4991

David S Nagy

Reg. 50708

Patent attorney

Law Offices of David S Nagy

Glendale, CA · 91201

818-842-9271

John S Nagy

Reg. 30664

Patent attorney

Fulwider Patton Lee LLP

Los Angeles, CA · 90045

310-824-5555

Sevan Nahabedian

Reg. 81967

Patent agent

Redwood City, CA · 94065

650-454-5156

Reza Nahvi

Reg. 62339

Patent agent

Morro Bay, CA · 93443-0069

805-528-2580

Sreenivasa C. Naidu

Reg. 80401

Patent agent

WILSON SONSINI GOODRICH & ROSATI

Palo Alto, CA · 94304

650-849-3111

Amir A Naini

Reg. 45770

Patent attorney

Proskauer Rose LLP

Los Angeles, CA · 90067

310-284-5641

Jaya Nair

Reg. 46454

Patent attorney

ASML US, Inc.

San Jose, CA · 95131

669-265-4630

Shankar Achu Nair

Reg. 62187

Patent attorney

Milpitas, CA · 95035

908-963-9999

Dori H Nakahara

Reg. 44254

Patent attorney

San Francisco, CA · 94122

Daniel Nakaji

Reg. 58017

Patent agent

San Diego, CA · 92122

800-549-2600

Melissa L Nakamoto

Reg. 83145

Patent agent

Redwood City, CA · 94065

650-833-7716

Jackie Naomi Nakamura

Reg. 35966

Patent attorney

Nakamura Law Group

Saratoga, CA · 95070

408-386-5545

Koichiro Nakanishi

Reg. 72824

Patent agent

Nakanishi IP Associates, LLC

Citrus Heights, CA · 95610

916-430-5280

Shervin K. Nakhjavan

Reg. 57682

Patent agent

Temecula, CA · 92592

818-331-2355

Jeffrey M. Nall

Reg. 69555

Patent attorney

Wilson Sonsini Goodrich & Rosati

Palo Alto, CA · 94304

216-577-4752

Rousl Nabil Namiq

Reg. 903315

Limited recognition

Thomas Jefferson School of Law

San Diego, CA · 92101

619-888-8981

Jingyuan Nan

Reg. 83921

Patent attorney

ARENTFOX SCHIFF LLP

San Francisco, CA · 94104

415-757-5895

Richa Nand

Reg. 52059

Patent agent

Cytori Therapeutics

San Diego, CA · 92121

858-875-5233

Furqan A Nanji

Reg. 64405

Patent attorney

Furqan Nanji

San Leandro, CA · 94577

612-229-8018

Ajit Singh Narang

Reg. 55480

Patent attorney

Medtronic MiniMed, Inc.

Northridge, CA · 91325

818-576-5003

Arun K. Narasani

Reg. 78873

Patent agent

Ipmetrix LLC

Cupertino, CA · 95014

408-962-0604

Kannan Narayanan

Reg. 79060

Patent attorney

Morgan Lewis

Palo Alto, CA · 94304

408-685-3658

Rabinder N Narula

Reg. 53371

Patent attorney

Irvine, CA · 92603

949-654-7817

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.