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 NSIP Law, Goodwin Procter LLP, and Fish & Richardsonn P .C..

Top cities in District of Columbia

All practitioners in District of Columbia

William Christiansen· II

Reg. 44614

Patent attorney

Goodwin Procter LLP

Washington, DC · 20036

202-346-4000

Benjamin J Christoff

Reg. 70127

Patent attorney

Fish & Richardsonn P .C.

Washington, DC · 20024

202-626-6772

Marc Christophersen

Reg. 64665

Patent agent

U.S. Naval Research Laboratory

Washington, DC · 20375

202-404-2884

Christian A Chu

Reg. 55070

Patent attorney

Fish & Richardson P.C.

Washington, DC · 20024

202-783-5070

Melissa L Chun

Reg. 34960

Patent agent

U.S. Enviromental Protection Agency

Washington, DC · 20460

202-564-1605

Daniel G Chung

Reg. 63553

Patent attorney

Finnegan, Henderson, Farabow, Garrett & Dunner, LLP

Washington, DC · 20001

202-408-4000

Kwan Ho Chung

Reg. 73810

Patent attorney

Perkins Coie LLP

Washington, DC · 20005

202-661-5884

Lisa Chung

Reg. 84302

Patent agent

Washington, DC · 20004

347-918-7478

Matthew H Chung

Reg. 67531

Patent attorney

Washington, DC · 20005

202-626-8391

Sohyun Chung

Reg. 59875

Patent attorney

NSIP Law

Washington, DC · 20036

703-627-4283

Sung-Yeop Chung

Reg. 64130

Patent agent

Stein McEwen LLP

Washington, DC · 20005

202-216-9505

Wei Te Chung

Reg. 43325

Patent agent

PV IP PC

Washington, DC · 20016

408-253-9926

Paul W Churilla

Reg. 47495

Patent attorney

Brake Hughes Bellermann LLP

Washington, DC · 20006

360-930-3533

Frank C Cimino· Jr

Reg. 39945

Patent attorney

Dickstein Shapiro, LLP

Washington, DC · 20006

202-420-3601

Phillip W Citroen

Reg. 66541

Patent agent

Paul Hastings

Washington, DC · 20005

202-551-1991

Christopher B Clare

Reg. 70772

Patent attorney

Clark Hill PLC

Washington, DC · 20004

202-772-0909

Evan M. Clark

Reg. 64836

Patent attorney

Banner & Witcoff

Washington, DC · 20005

202-824-3000

Isaac R Clark

Reg. 54572

Patent attorney

Crowell & Moring LLP

Washington, DC · 20004-2595

202-624-2943

John C Clark

Reg. 43552

Patent agent

Venable LLP

Washington, DC · 20004

202-344-4049

Terry L Clark

Reg. 32644

Patent attorney

Bass, Berry & Sims PLC

Washington, DC · 20004

202-927-2950

Garth A Clarke

Reg. 60292

Patent attorney

NSIP Law

Washington, DC · 20036

202-429-0020

James L. Clarke

Reg. 66756

Patent attorney

Forward Entertainment And Technology, LLC

Washington, DC · 20011

202-494-2044

James G Clessuras

Reg. 51569

Patent attorney

Wilson Sonsini Goodrich and Rosati, P.C.

Washington, DC · 20006

202-973-8830

Gregory L Clinton

Reg. 59134

Patent agent

Jefferson IP Law, LLP

Washington, DC · 20036

202-293-2539

Jaden Michael Cloobeck

Reg. 903215

Limited recognition

The George Washington University School of Law

Washington, DC · 20052

949-280-4988

Brad R Close

Reg. 64511

Patent attorney

TIPS Group, P.C.

Washington, DC · 20006-4604

202-454-2800

Paige E. Cloud

Reg. 79850

Patent agent

Sterne Kessler Goldstein & Fox

Washington, DC · 20005

202-371-2600

William Blake Coblentz

Reg. 57104

Patent attorney

Cozen O'Connor

Washington, DC · 20036

202-912-4837

Alexis R Cohen

Reg. 76998

Patent attorney

Sidley Austin LLP

Washington, DC · 20005

202-736-8832

Eric R. Cohen

Reg. 72115

Patent attorney

Wilmer Cutler Pickering Hale and Dorr LLP

Washington, DC · 20006

202-663-6886

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.