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 Greenberg Traurig, LLP, Sughrue Mion, PLLC, and Naval Research Laboratory.

Top cities in District of Columbia

All practitioners in District of Columbia

Francis J Kub

Reg. 69250

Patent agent

Naval Research Laboratory

Washington, DC · 20375

202-767-3862

Yeojin Kuh

Reg. 80240

Patent attorney

Greenberg Traurig, LLP

Washington, DC · 20037

202-331-3100

Sarah L. Kuhns

Reg. 59573

Patent attorney

Cheng Law Group

Washington, DC · 20036

202-530-1280

Yoncha L Kundupoglu

Reg. 41130

Patent attorney

Office of Unfair Import Investigations

Washington, DC · 20436

202-205-3323

Hayden J. Kunz

Reg. 77416

Patent attorney

Washington, DC · 20005

651-253-7143

Kevin C Kunzendorf

Reg. 58308

Patent attorney

Sughrue Mion, PLLC

Washington, DC · 20006

202-663-7375

Vivian S Kuo

Reg. 45456

Patent attorney

Greenberg Traurig, LLP

Washington, DC · 20037

202-331-3158

Dara M Kurlancheek

Reg. 69815

Patent attorney

King & Spalding

Washington, DC · 20006

202-626-5590

Hannah P. Kuschman

Reg. 83799

Patent agent

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

Washington, DC · 20005

202-371-2600

Jeffrey P Kushan

Reg. 43401

Patent attorney

Sidley Austin Brown & Wood LLP

Washington, DC · 20005

202-736-8914

John W Kuzin

Reg. 46848

Patent attorney

John W. Kuzin, Senior Director, Goverment Affairs- Regulatory Qualcomm Inco

Washington, DC · 20006

202-263-0015

Ching Kwok

Reg. 72887

Patent attorney

NSIP LAW

Washington, DC · 20036

202-391-0280

Ashley M Kwon

Reg. 67183

Patent agent

Covington & Burling LLP

Washington, DC · 20001

202-662-5873

Young Sun Kwon

Reg. 78445

Patent attorney

Sughrue Mion, PLLC

Washington, DC · 20037-3213

202-775-7513

Youngsun Kwon

Reg. 82225

Patent agent

Washington, D.C., DC · 20036

720-630-4959

Akosua P Kyereme-Tuah

Reg. 77391

Patent attorney

DC, DC · 20004

000-000-0000

Patrick T. LaBreck

Reg. 79419

Patent agent

Greenberg Traurig, LLP

Washington, DC · 20037

202-530-8545

Randy W Lacasse

Reg. 34368

Patent agent

Sterne Kessler Goldstein and Fox, PLLC

Washington DC, DC · 20005

202-772-8678

William P Ladd

Reg. 64646

Patent attorney

U.S. Naval Research Laboratory

Washington, DC · 20375

202-404-1557

Patrick M. Lafferty

Reg. 63000

Patent attorney

KILPATRICK TOWNSEND & STOCKTON, LLP

Washington, DC · 20005-2018

202-508-5800

Christian A LaForgia

Reg. 71227

Patent attorney

Banner & Witcoff

Washington, DC · 20005

202-824-3000

Katherine R Lahnstein-Bertocci

Reg. 53842

Patent attorney

Adduci, Mastriani & Schaumberg, LLP

Washington, DC · 20036

202-467-6300

Cristina B. Lai

Reg. 79800

Patent agent

Morrison & Foerster LLP

Washington, DC · 20037

202-887-1582

Christophe F. Lair

Reg. 54248

Patent attorney

CUSHMAN PARTNERS LLC

Washington, DC · 20005

443-745-1916

Samuel L Lair

Reg. 73965

Patent agent

Washington, DC · 20001

202-733-2903

Peter Nicholas Lalos

Reg. 19789

Patent attorney

Novak Druce + Quigg LLP

Washington, DC · 20001

202-204-4732

Anita Y Lam

Reg. 67394

Patent attorney

Mayer Brown LLP

Washington, DC · 20006

202-263-3146

Brian J. Lambson

Reg. 72570

Patent attorney

WilmerHale, LLP

Washington, DC · 20037

202-663-6190

Mark A Lampert

Reg. 81559

Patent agent

Washington, DC · 20001

202-408-4000

Yan Lan

Reg. 50214

Patent agent

Sughrue Mion, PLLC

Washington, DC · 20037

202-663-7404

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.