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 Wilson Sonsini Goodrich & Rosati, Westerman, Hattori, Daniels & Adrian LLP, and Venable, LLP.

Top cities in District of Columbia

All practitioners in District of Columbia

Kenji Kimura

Reg. 81423

Patent agent

Washington, DC · 20009

202-390-9282

Sadao Kinashi

Reg. 48075

Patent attorney

Westerman, Hattori, Daniels & Adrian LLP

Washington, DC · 20036

202-822-1100

Robert Kinberg

Reg. 26924

Patent attorney

Venable, LLP

Washington, DC · 20004

202-344-4051

Yoshinari Kishimoto

Reg. 47327

Patent attorney

Sughrue Mion, PLLC

Washington, DC · 20006-1811

202-663-7426

Bruce M Kisliuk

Reg. 74242

Patent agent

Wilson Sonsini Goodrich & Rosati

Washington, DC · 20006-3817

301-580-6948

Gordon Kit

Reg. 30764

Patent attorney

Washington, DC · 20016

202-362-9470

Matthew T. Kitces

Reg. 61212

Patent attorney

Nixon Peabody LLP

Washington, DC · 20001

202-585-8026

Richard Howard Kjeldgaard

Reg. 30186

Patent attorney

Kjeldgaard PLLC

Washington, DC · 20005

202-725-4798

David M. Klecyngier

Reg. 72632

Patent agent

BakerHostetler

Washington, DC · 20036

202-861-1502

Willem G. Klein

Reg. 79603

Patent agent

Ratner Presita

Washington, DC · 20005

202-808-7361

William R. Klima

Reg. 79647

Patent attorney

Wilmer Cutler Pickering Hale and Door LLP

Washington, DC · 20037

202-663-6156

Jordan T. Klimek

Reg. 75506

Patent attorney

Federal Trade Commission

Washington, DC · 20024

202-879-3765

Thomas M Kline

Reg. 32805

Patent agent

PEO IWS, Naval Sea Systems Command

Washington, DC · 20376-7007

Brian Lee Klock

Reg. 36570

Patent attorney

Venable LLP

Washington, DC · 20001

202-721-5427

Daniel F Klodowski

Reg. 72693

Patent attorney

Finnegan Henderson Farabow

Washington, DC · 20001

202-408-4216

Fabian Kloosterman

Reg. 83578

Patent agent

Washington, DC · 20001

202-503-5343

Matthew K. Knabel

Reg. 71762

Patent agent

Washington, DC · 20006

202-835-7537

Bernard John Knight· Jr.

Reg. L0911

Limited recognition

Washington, DC · 20001

202-236-8232

Dustin M. Knight

Reg. 76239

Patent attorney

Cooley LLP

Washington, DC · 20004-2400

571-643-5164

Jonathan P Knight

Reg. 69866

Patent attorney

Haag & Knight PLLC

Washington, DC · 20015

407-257-7521

Kendall M Knight

Reg. 81290

Patent attorney

Washington, DC · 20003

225-716-0331

Elissa N. Knoff

Reg. 68369

Patent attorney

Bookoff McAndrews, PLLC

Washington, DC · 20006

202-808-3550

Bradley Thomas Knope

Reg. 58049

Patent attorney

U.S. Dept. of Veterans Affairs

Washington, DC · 20420

202-461-8993

Jonathan M. Knowles

Reg. 81762

Patent attorney

Burnham & Gorokhov, PLLC

Washington, DC · 20006

347-273-1828

Seung Hyeon Ko

Reg. 79799

Patent agent

Wilson Sonsini Goodrich & Rosati

Washington, DC · 20006

202-903-8800

So R Ko

Reg. 78801

Patent attorney

Mayer Brown

Washington, DC · 20006

202-765-7587

Robert James Koch

Reg. 26637

Patent attorney

Milbank,Tweed, Hadley & McCloy LLP

Washington, DC · 20006

202-835-7500

Mark Koehn

Reg. 46271

Patent attorney

LATHAM & WATKINS LLP

Washington, DC · 20004-1304

202-637-2186

Tobias P. Koengeter

Reg. 84611

Patent agent

Finnegan, Henderson, Farabow, Garrett & Dunner, LLP

Washington, DC · 20001

857-361-9147

Fabian M Koenigbauer

Reg. 66959

Patent attorney

Ice Miller LLP

Washington, DC · 20001

202-807-4055

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.