District of Columbia

Patent attorneys in District of Columbia

District of Columbia hosts 2,661 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 Covington & Burling LLP, Ballard Spahr LLP, and Sterne, Kessler, Goldstein & Fox P.L.L.C..

Top cities in District of Columbia

All practitioners in District of Columbia

David J Cho

Reg. 48078

Patent attorney

Ballard Spahr LLP

Washington DC, DC · 20006

202-661-2283

David J. Cho

Reg. 72457

Patent attorney

Covington & Burling LLP

Washington, DC · 20001

202-662-5738

Hojung Mui Cho

Reg. 72755

Patent attorney

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

Washington, DC · 20005

202-772-8710

Woohyeong Cho

Reg. 83115

Patent attorney

Fish and Richardson PC

Washington, DC, DC · 20024

202-626-7755

Daniel S Choi

Reg. 80659

Patent agent

Fox Rothschild

Washington, DC · 20006

202-461-3100

Douglas Choi

Reg. 75267

Patent attorney

Rothwell, Figg, Ernst & Manbeck

Washington, DC · 20005

202-783-6040

Eric J. Choi

Reg. 71160

Patent attorney

Cozen O'Connor

Washington, DC · 20036

202-912-4841

In Young Choi

Reg. 80724

Patent agent

Wilson Sonsini Goodrich & Rosati

Washington, DC · 20006

202-973-8800

Jae Woo Choi

Reg. L0889

Limited recognition

Fish and Richardson P.C.

Washington, DC · 20024

202-626-6435

Kyle J Choi

Reg. 41480

Patent attorney

Quinn Emanuel

Washington, DC · 20005

202-538-8000

Min S Choi

Reg. 77338

Patent agent

Morgan, Lewis & Bockius

Washington, DC · 20004

202-739-5096

Min-soo B. Choi

Reg. 82371

Patent attorney

Washington, DC · 20037

703-717-8430

Sonny S.H. Choi

Reg. 65889

Patent attorney

Staas & Halsey, LLP

Washington, DC · 20005

Wonseon Kiersten Choi

Reg. 73012

Patent agent

Covington & Burling LLP

Washington, DC · 20001

202-662-5240

Wonsuck Choi

Reg. 76787

Patent agent

NovoTechIP International PLLC

Washington, DC · 20006

571-212-2390

Yong Seock Choi

Reg. 76846

Patent attorney

NSIP Law

Washington, DC · 20036

202-429-0020

Yongsuck Choi

Reg. 43324

Patent attorney

Dentons US LLP

Washington, DC · 20006

202-496-7647

Young H. Chon

Reg. 67967

Patent agent

Sughrue Mion, PLLC

Washington, DC · 20037-3213

202-663-7397

Alayna Y Choo

Reg. 80608

Patent attorney

Washington, DC · 20037

202-572-6754

Daniel K. H. Choo

Reg. 72039

Patent attorney

Sterne, Kessler, Goldstein & Fox

Washington, DC · 20005

202-371-2600

James C Chou

Reg. 76907

Patent attorney

Orrick, Herrington & Sutcliffe, LLP

Washington, DC · 20037

202-349-8003

Ryan M Chowdhury

Reg. 74466

Patent agent

Fish & Richardson, P.C.

Washington, DC · 20005

202-638-6554

Connor J Christensen

Reg. 79714

Patent attorney

Bookoff McAndrews PLLC

Washington, DC · 20006

402-916-0113

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

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?

2,661 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.