Washington, District of Columbia

Patent attorneys in Washington

Washington, District of Columbia is home to 2,626 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 Marquez Intellectual Property Law Office, PLLC, Arnold and Porter Kaye Scholer LLP, and Fisher, Christen & Sabol.

Juan Carlos Angeles Marquez

Reg. 34072
Patent attorney

Marquez Intellectual Property Law Office, PLLC

Washington, DC · 20006

202-349-1690

David R Marsh

Reg. 41408
Patent attorney

Arnold and Porter Kaye Scholer LLP

Washington, DC · 20001-3743

202-942-5068

Virgil Homer Marsh

Reg. 23083
Patent attorney

Fisher, Christen & Sabol

Washington, DC · 20036

202-659-2000

Wade Douglas Marshall

Reg. 903228
Limited recognition

The George Washington University School of Law

Washington, DC · 20052

210-323-8969

Brian J. Marstall

Reg. 73023
Patent attorney

Michael Best & Friedrich LLP

Washington, DC · 20004

202-747-9563

James T Martin

Reg. 22937
Patent attorney

J.T. Martin

Washington, DC · 20007

202-296-3650

Mikayla Simone Martin

Reg. 903102
Limited recognition

Howard University School of Law

Washington, DC · 20008

614-607-3090

Thomas C. Martin

Reg. 57677
Patent attorney

Baker Botts LLP

Washington, DC · 20004-2400

202-639-7752

William D Martin· Jr

Reg. 33335
Patent agent

Washington, DC · 20019

202-575-8172

Shoshana G Marvin

Reg. 70077
Patent attorney

Sterne, Kessler, Goldstein & Fox P.L.L.C.

Washington, DC · 20005

202-772-8850

Kamyar M Maserrat

Reg. 75022
Patent attorney

Dentons US LLP

Washington, DC · 20006-1102

202-496-7376

Mark F. Mashack

Reg. 73782
Patent attorney

Blank Rome

Washington, DC · 20006

202-420-2200

Geoffrey C Mason

Reg. 42847
Patent attorney

Shook Hardy and Bacon

Washington, DC · 20005-2004

202-783-8400

Joanna K Mason

Reg. 56408
Patent agent

Brake Hughes Bellermann.LLP

Washington, DC · 20006

202-470-6460

Richard James Mason

Reg. 67060
Patent attorney

Brake Hughes Bellermann LLP

Washington, DC · 20006

202-753-6918

Zachary D. Mason

Reg. 78679
Patent attorney

Bookoff McAndrews

Washington, DC · 20006

771-208-3462

Mary Katherine O. Mastaler

Reg. 84413
Patent agent

Michael Best

Washington, DC · 20024

202-747-9560

James T Masters

Reg. 77225
Patent attorney

Finnegan, Henderson, Farabow, Garrett & Dunner LLP

Washington, DC · 20001-4413

202-408-4127

Robert Martin Masters

Reg. 35603
Patent attorney

Sheppard Mullin Richter & Hampton LLP

Washington, DC · 20006

202-747-1935

David G. Mata

Reg. 72300
Patent attorney

Greenberg Traurig, LLP

Washington, DC · 20037

202-573-8201

Joseph David Matal

Reg. L1362
Limited recognition

Haynes and Boone, LLP

Washington, DC · 20006

202-654-4533

Nicholas M. Mathews

Reg. 66067
Patent attorney

Hunton & Williams LLP

Washington, DC · 20037

202-955-1804

Thomas J Matikainen

Reg. 73291
Patent attorney

NSIP Law

Washington, DC · 20036

202-429-0020

William J Matney· Jr

Reg. 39292
Patent attorney

RatnerPrestia

Washington, DC · 20005

202-808-7372

Lisa M Matovcik

Reg. 53283
Patent agent

Finnegan Henderson Farabow Garrett & Dunner, LLP

Washington, DC · 20005

202-408-4000

Katharine I Matthews

Reg. 40336
Patent attorney

Intelletech PLLC

Washington, DC · 20013

202-487-5574

Aaron P Maurer

Reg. 44911
Patent attorney

Williams and Connolly, LLP

Washington, DC · 20024

202-434-5282

Eric J Maurer

Reg. 43782
Patent attorney

Boies Schiller Flexner LLP

Washington, DC · 20005

202-237-2727

Nicole Jane Maxwell

Reg. 902711
Limited recognition

American University, Washington College of Law

Washington, DC · 20016

508-988-5153

Simon C. Maxwell

Reg. 82086
Patent agent

Jones Day

Washington, DC · 20001

240-600-9600

Common questions

Do patent attorneys in Washington 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 Washington tend to track the broader District of Columbia legal market.
How many USPTO practitioners list a Washington office?
2,626 USPTO-registered patent practitioners list a Washington 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 Washington practitioner remotely?
Yes. All filings happen through USPTO's electronic Patent Center — no in-person presence is required. A Washington-based practitioner is convenient for local inventor signings and in-person meetings but not a requirement for representation.
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