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 Finnegan, Henderson, Farabow, Garrett & Dunner, LLP, Sterne, Kessler, Goldstein & Fox P.L.L.C., and WilmerHale.

Top cities in District of Columbia

All practitioners in District of Columbia

Esther H Lim

Reg. 41944

Patent attorney

Finnegan, Henderson, Farabow, Garrett & Dunner, LLP

Washington, DC · 20001-4413

202-408-4121

Haixia Lin

Reg. 61318

Patent attorney

WilmerHale

Washington, DC · 20006

202-663-6000

Jeoyuh Lin

Reg. 56032

Patent agent

Washington, DC · 20009

202-588-5614

Evan D Linderman

Reg. 65261

Patent attorney

Sterne, Kessler, Goldstein, & Fox

Washington, DC · 20005

202-772-8915

Michael T. Lines

Reg. 71259

Patent attorney

Staas & Halsey LLP

Washington, DC · 20005

202-454-1567

Jonathan D Link

Reg. 41548

Patent attorney

Russ, August & Kabat

Washington, DC · 20024

310-826-7474

Ashley K Lipinski

Reg. 69872

Patent agent

ArentFox Schiff

Washington, DC · 20006

202-857-6064

Christopher R Lipp

Reg. 41157

Patent attorney

Sughrue Mion Zinn MacPeak and Seas

Washington, DC · 20037

202-663-7425

Lindsay E Littler Chiarello

Reg. 68979

Patent attorney

Bookoff McAndrews PLLC

Washington, DC · 20006

202-935-5085

Jiaqi Liu

Reg. 83801

Patent agent

DLA Piper LLP (US)

Washington, DC · 20004

202-799-4049

Kevin Y. Liu

Reg. 72951

Patent agent

Baker Hostetler

Washington, DC · 20036

202-861-1500

Miao Liu

Reg. 72463

Patent attorney

O'Melveny & Myers LLP

Washington, DC · 20006

202-383-5325

Tyler C. Liu

Reg. 72126

Patent attorney

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

Washington, DC · 20005

202-772-8641

Xun Liu

Reg. 68815

Patent attorney

Williams & Connolly LLP

Washington, DC · 20024

202-434-5706

Yichen Liu

Reg. 72587

Patent agent

Foley & Lardner, LLP

Washington, DC · 20007

202-295-4061

Yuhe Liu

Reg. 76525

Patent agent

McDermott Will & Emery LLP

Washington, DC · 20001-1531

202-756-8974

Zheng Liu

Reg. 67862

Patent attorney

Fennemore Craig

Washington, DC · 20005

703-831-6060

Brian J. Livedalen

Reg. 67450

Patent attorney

Fish & Richardson P.C.

Washington, DC · 20024

202-638-6557

James J Livingston· Jr.

Reg. 55394

Patent attorney

James J. Livingston, JR. Attorney at Law

Washington, DC · 20002

508-728-4174

Shmuel Livnat

Reg. 33949

Patent agent

Browdy & Neimark PLLC

Washington, DC · 20006

202-628-5197

Gregg F LoCascio

Reg. 55396

Patent attorney

Kirkland and Ellis LLP

Washington, DC · 20005

202-879-5290

Nicholas G Lockhart

Reg. 72588

Patent attorney

Cooley LLP

Washington, DC · 20004-2400

202-842-7800

Bronwen M Loeb

Reg. 43516

Patent agent

Banner Witcoff

Washington, DC · 20005-4051

202-824-3328

Janice Hyeseung Logan

Reg. 64526

Patent agent

Morgan Lewis

Washington, DC · 20004

202-439-5234

Joseph Preston Long

Reg. 65125

Patent attorney

Finnegan, Henderson, Farabow, Garrett & Dunner, LLP

Washington, DC · 20001

202-408-4000

Stacey Jean Longanecker

Reg. 33952

Patent attorney

Dickinson Wright PLLC

Washington, DC · 20006

202-659-6950

Gaby Lorraine Longsworth

Reg. 47756

Patent attorney

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

Washington, DC · 20005

202-371-2600

Enrique Diego Longton

Reg. 47304

Patent attorney

Longton IP Law PLLC

Washington, DC · 20004

202-468-5487

Phillip Gary Lookadoo

Reg. 31849

Patent attorney

Reed Smith LLP

Washington, DC · 20005

202-414-9211

Joshua A Lopez

Reg. 77552

Patent agent

Paul Hastings LLP

Washington, DC · 20036

202-551-1834

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.