San Francisco, California

Patent attorneys in San Francisco

San Francisco, California is home to 854 USPTO-registered patent practitioners. Working with a local practitioner can streamline in-person meetings for invention disclosures, signing inventor declarations, and reviewing prior-art search results — but every USPTO practitioner is licensed to practice nationally, so a non-local choice is also valid. Local firms with the most USPTO-registered practitioners include Morgan, Lewis & Bockius LLP, Vierra Magen Marcus LLP, and Baker Botts LLP.

Zhigang Ma

Reg. 76258

Patent agent

Baker Botts LLP

San Francisco, CA · 94111

415-291-6239

Dexter M. Macaranas

Reg. 59579

Patent agent

San Francisco, CA · 94103

408-421-5051

Marley M. Macarewich

Reg. 83086

Patent agent

Morrison Foerster

San Francisco, CA · 94105-2482

415-268-7000

Christina A MacDougall

Reg. 65210

Patent attorney

Morgan, Lewis & Bockius LLP

San Francisco, CA · 94105

415-442-1277

Brian E Mack

Reg. 57189

Patent attorney

Quinn Emanuel Urquhart & Sullivan LLP

San Francisco, CA · 94111

415-875-6600

Kevin J Mack

Reg. 56224

Patent attorney

Dolby Laboratories, Inc.

San Francisco, CA · 94103

415-645-5065

Erin Madden

Reg. 46892

Patent agent

The J David Gladstone Institutes

San Francisco, CA · 94141

415-695-3732

Burt Magen

Reg. 37175

Patent attorney

Vierra Magen Marcus LLP

San Francisco, CA · 94105

415-489-4103

Taraneh Maghame

Reg. 43768

Patent attorney

Via Licensing Corporation

San Francisco, CA · 94103

415-645-4766

Thomas A Magnani

Reg. 45876

Patent attorney

Arnold & Porter LLP

San Francisco, CA · 94111

415-434-1600

Jacqueline F Mahoney

Reg. 48390

Patent attorney

Nektar Therapeutics

San Francisco, CA · 94158

415-482-5300

John W Mahoney

Reg. 44892

Patent attorney

ACT Biotech Inc.

San Francisco, CA · 94103

415--23-0-3904

Dat D. Mai

Reg. 83802

Patent agent

San Francisco, CA · 94131

347-717-0023

Henna Maiwand

Reg. 902316

Limited recognition

University of San Francisco School of Law

San Francisco, CA · 94117-1080

916-276-4012

Allyson K Malecha

Reg. 82832

Patent agent

Haynes and Boone LLP

San Francisco, CA · 94104

415-293-8900

Jori K Mandelman

Reg. 44897

Patent attorney

San Francisco, CA · 94127

415-637-2633

Jeffry S Mann

Reg. 42837

Patent attorney

Morgan, Lewis & Bockius LLP

San Francisco, CA · 94105

415-442-1000

Alana C. Mannige

Reg. 71899

Patent attorney

Twilio Inc.

San Francisco, CA · 94105

415-390-2337

Daniel Huaizhou Mao

Reg. 51995

Patent agent

Faegre Drinker Biddle & Reath LLP

San Francisco, CA · 94111

415-591-7571

Brian I Marcus

Reg. 34511

Patent attorney

Vierra Magen Marcus LLP

San Francisco, CA · 94105

415-489-4100

Catherine Cecilia Maresh

Reg. 35268

Patent attorney

San Francisco, CA · 94123

415-717-3655

David Markevitch

Reg. 64903

Patent attorney

Kaiser Gornick LLP

San Francisco, CA · 94105

415-857-7482

Eric F. Marsh

Reg. 72654

Patent attorney

Global Tel*Link

San Francisco, CA · 94111

415-300-4395

K Lee Marshall

Reg. 51999

Patent attorney

Bryan Cave Leighton Paisner LLP

San Francisco, CA · 94111

415-675-3400

Brandon C. Martin

Reg. 79423

Patent attorney

San Francisco, CA · 94116

520-403-0169

James P Martin

Reg. 47772

Patent attorney

Shartsis Friese LLP

San Francisco, CA · 94111

415-421-6500

Joanne T. Martinez

Reg. 60096

Patent attorney

San Francisco, CA · 94117

850-727-1392

Diane J Mason

Reg. 43777

Patent attorney

Bullivant Houser Bailey PC

San Francisco, CA · 94108-2823

415-352-2758

Renjith Mathew

Reg. 800137

Limited recognition

Nixon Peabody LLP

San Francisco, CA · 94111

415-849-5613

Duane H Mathiowetz

Reg. 33420

Patent attorney

Practus LLP

San Francisco, CA · 94111

415-501-0350

Common questions

Do patent attorneys in San Francisco cost more than the national average?

Patent attorney fees vary primarily by experience and complexity of the invention, not by city. A typical provisional patent application in the US runs $1,500 to $5,000; a non-provisional utility filing runs $5,000 to $15,000. Hourly rates in San Francisco tend to track the broader California legal market.

How many USPTO practitioners list a San Francisco office?

854 USPTO-registered patent practitioners list a San Francisco mailing address on the OEDCI roster. You can sort by firm size and contact each directly using the phone numbers shown.

Can I work with a San Francisco practitioner remotely?

Yes. All filings happen through USPTO's electronic Patent Center — no in-person presence is required. A San Francisco-based practitioner is convenient for local inventor signings and in-person meetings but not a requirement for representation.