District of Columbia

Patent attorneys in District of Columbia

District of Columbia hosts 2,699 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 District of Columbia. 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 Finnegan, Henderson, Farabow, Garrett & Dunner, LLP, Addvci Mastriani & Schaumberg LLP, and Covington & Burling.

Top cities in District of Columbia

All practitioners in District of Columbia

Giang T. Tonthat

Reg. 73131

Patent attorney

Addvci Mastriani & Schaumberg LLP

Washington, DC · 20036

202-467-6300

Allan J Topol

Reg. 25801

Patent attorney

Covington & Burling

Washington, DC · 20004

202-662-5402

Andrea G Torczon

Reg. 36701

Patent attorney

US Deptartment of Commerce

Washington, DC · 20230

202-482-8028

Richard L Torczon· Jr

Reg. 34448

Patent attorney

Wilson Sonsini Goodrich & Rosati

Washington, DC · 20006

202-973-8811

Stanislav Torgovitsky

Reg. 43958

Patent attorney

Roylance, Abrams, Berdo & Goodman, L.L.P.

Washington, DC · 20036

202-659-9076

Jeffrey C. Totten

Reg. 65229

Patent attorney

Finnegan, Henderson, Farabow,

Washington, DC · 20001

202-408-4000

Caroline Bennett Totz

Reg. 903231

Limited recognition

The George Washington University School of Law

Washington, DC · 20052

832-538-8411

Donald E Townsend

Reg. 22069

Patent attorney

Law Offices of Townsend & Banta

Washington, DC · 20004

305-766-3739

Donald E Townsend· Jr

Reg. 43198

Patent attorney

Townsend and Banta

Washington, DC · 20004

202-220-3124

Daniel S Trainor

Reg. 43959

Patent agent

Kirkland & Ellis Sean

Washington, DC · 20005

202-879-5229

Andrew V Trask

Reg. 59239

Patent attorney

Williams & Connolly LLP

Washington, DC · 20024

202-434-5023

Ronald A. Traud· Jr.

Reg. 70509

Patent attorney

U.S. International Trade Commission

Washington, DC · 20436

919-753-4488

John Treilhard

Reg. 81505

Patent agent

Fish & Richardson PC

Washington, DC · 20024

404-901-2953

Anthony C. Tridico

Reg. 45958

Patent attorney

Finnegan, Henderson, Farabow, Garrett & Dunner, LLP

Washington, DC · 20001-4413

202-408-4173

Joshua S. Trinkler

Reg. 82135

Patent attorney

Duane Morris LLP

Washington, DC · 20001

202-776-5247

Louis M Troilo

Reg. 45284

Patent attorney

Finnegan, Henderson, Farabow, Garrett & Dunner, LLP

Washington, DC · 20005

202-408-6020

Michael M Truman

Reg. 68290

Patent agent

Washington, DC · 20007

240-274-1246

Kenny H Truong

Reg. 84171

Patent attorney

Sughrue Mion, PLLC

Washington, DC · 20006-1811

202-663-7915

Neil N Tsao

Reg. 50408

Patent attorney

Williams & Connolly, LLP

Wasgington, DC · 20005

202-661-3467

Kyle K Tsui

Reg. 62602

Patent agent

Arnold Porter

Washington, DC · 20001

202-942-6976

Jonathan Tuminaro

Reg. 61327

Patent attorney

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

Washington, DC · 20005

202-371-2600

Imani Gianna Turner

Reg. 901897

Limited recognition

Howard University School of Law

Washington, DC · 20008

313-910-4488

Michael H Turner

Reg. 58526

Patent attorney

Alston & Bird LLP

Washington, DC · 20004

202-239-3203

Richard C Turner

Reg. 29710

Patent attorney

Sighrue Mion PLLC

Washington, DC · 20037

202-293-7060

Michael S Tuscan

Reg. 43210

Patent attorney

Cooley LLP

Washington, DC · 20004-2400

202-842-7802

Richard H Tushin

Reg. 27297

Patent attorney

Dykema Gossett PLLC

Washington, DC · 20005

202-906-8680

Harrison R. Tyler· III

Reg. 84581

Patent attorney

Washington, DC · 20001

703-554-4417

Christopher J Tyson

Reg. 63850

Patent attorney

Duane Morris, LLP

Washington, DC · 20004

202-776-7851

William R. Uhr

Reg. 71282

Patent agent

Bookoff McAndrews PLLC

Washington, DC · 20006

908-358-2008

Mark E Ungerman

Reg. 32070

Patent attorney

Ungerman IP PLLC

Washington, DC · 20008

202-461-3200

Common questions

Do I need a patent attorney based in District of Columbia?

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 District of Columbia-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 District of Columbia?

2,699 active USPTO-registered patent practitioners list a District of Columbia 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.