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 Wilson Sonsini Goodrich & Rosati, NSIP Law, and Dentons US LLP.

Youngchul Kim

Reg. 65722

Patent agent

NSIP Law

Washington, DC · 20036

202-429-0020

Younggyu Kim

Reg. 63379

Patent attorney

Dentons US LLP

Washington, DC · 20006

202-496-7532

Younghoon Kim

Reg. 78715

Patent attorney

Procopio, Cory, Hargreaves & Savitch LLP

Washington, DC · 20036

202-830-0707

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

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.