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 Perkins Coie LLP, Morgan Lewis & Bockius LLP, and BioTime.

Top cities in California

All practitioners in California

Shaneice R Mitchell

Reg. 84168

Patent agent

Menlo Park, CA · 94025

252-862-5166

Steven M Mitchell

Reg. 31857

Patent attorney

Palo Alto, CA · 94306

650-494-2762

Kakoli Mitra

Reg. 69185

Patent agent

Perkins Coie LLP

San Francisco, CA · 94105-3204

141-534-47151

Daniel M. Mittelstein

Reg. 79750

Patent agent

Morgan Lewis & Bockius LLP

Costa Mesa, CA · 92626

714-830-0600

Briana E. Mittleman

Reg. 80994

Patent attorney

Palo Alto, CA · 94304

913-522-0582

E Stewart Mittler

Reg. 50316

Patent attorney

BioTime

Alameda, CA · 94502

510-521-3390EXT.348

Susan Michelle Mittman

Reg. 38244

Patent attorney

Court Of Appeal Fourth Appellate

San Diego, CA · 92101

619-744-0663

Farhad G Mizori

Reg. 68450

Patent agent

Designer Molecules, Inc.

San Diego, CA · 92131

858-348-1122

Mark B Mizrahi

Reg. 53336

Patent attorney

Wolf, Rifkin, Shapiro, Schulman & Rabkin, LLP

Los Angeles, CA · 90064-1582

310-478-4100

Edmund H Mizumoto

Reg. 46938

Patent attorney

Santa Ana, CA · 92707

408-204-8836

Sona Mkrtichyan

Reg. 83066

Patent agent

Tujunga, CA · 91042-3445

240-506-6268

Arman Stepani Mkryan

Reg. 53337

Patent attorney

Glendale, CA · 91206

323-496-2762

Katherine M. Mladinich

Reg. 78414

Patent attorney

Latham Watkins LLP

Menlo Park, CA · 94025

650-328-4600

Aileen Yen-Hua Mo

Reg. 53338

Patent attorney

Park, Vaughan, Fleming & Dowler LLP

Davis, CA · 95618

530-746-7843

Ramin Mobarhan

Reg. 50182

Patent attorney

Costa Mesa, CA · 92626

Daniel E. Moderick· Jr.

Reg. 71633

Patent attorney

Topgolf Callaway Brands Corp.

Carlsbad, CA · 92008

760-573-3399

Victoria A Moffa

Reg. 80901

Patent attorney

Thompson Hine LLP

San Mateo, CA · 94402

650-521-5933

Michael J Moffatt

Reg. 39304

Patent attorney

Fulwider Patton LLP

Los Angeles, CA · 90045

310-824-5555

Ravi Mohan

Reg. 71912

Patent attorney

Rutan & Tucker, LLP

Costa Mesa, CA · 92626

714-641-3403

Sunjay Y Mohan

Reg. 56739

Patent attorney

SAP

Palo Alto, CA · 94304

650-687-4703

Sheela Mohan-Peterson

Reg. 41201

Patent attorney

SMP Legal Consulting, PC

San Jose, CA · 95150

408-891-3885

Dale G Mohlenhoff

Reg. 37683

Patent attorney

Cisco Systems, Inc.

San Jose, CA · 95134-1706

408-525-9589

Judith Michele Mohr

Reg. 38563

Patent attorney

McDermott Will & Schulte LLP

Menlo Park, CA · 94025

650-815-7630

Randolph N Mohr

Reg. 45590

Patent attorney

Amgen Inc.

Thousand Oaks, CA · 91320

805-447-8949

Kathy Mojibi

Reg. 41409

Patent attorney

Signal Brands

Los Angeles, CA · 90007

213-748-0990

Michael A Molano

Reg. 39777

Patent attorney

Mayer Brown LLP

Palo Alto, CA · 94306

650-331-2035

Gavin W. Moler

Reg. 74220

Patent attorney

Carmichael, CA · 95608

916-704-5020

Leah A Molera

Reg. 65651

Patent attorney

Vallejo, CA · 94591

707-644-1984

Robert G Moll

Reg. 33741

Patent attorney

Aptos, CA · 95003

650-888-3093

Heather H Molleur

Reg. 50432

Patent agent

Intermolecular, Inc.

San Jose, CA · 95134

408-582-5516

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.