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, Paul Hastings, LLP, and Global IP Counselors, LLP.

Top cities in District of Columbia

All practitioners in District of Columbia

Akiyoshi Onda

Reg. 63773

Patent agent

Global IP Counselors, LLP

Washington, DC · 20036

202-293-0444

Sumiyo Onda

Reg. 62166

Patent agent

Nixon Peabody LLP

Washington, DC · 20004-2128

202-585-8000

Christina A Ondrick

Reg. 46198

Patent attorney

McKool Smith

Washington, DC · 20006

202-370-8300

Nicholas C Oros

Reg. 48413

Patent agent

Federal Communications Commission

Washington, DC · 20554

202-418-0636

Karen Lee Orzechowski

Reg. 31621

Patent attorney

Harvest IP Law LLP

Washington, DC · 20004

202-787-5887

Jacob R Osborn

Reg. 65775

Patent attorney

Goodwin Procter LLP

Washington, DC · 20036

202-346-4133

Inge A Osman

Reg. 74480

Patent attorney

Latham & Watkins, LLP

Washington, DC · 20004

202-637-3308

Denis Ostrovsky

Reg. 73229

Patent attorney

Saul Ewing Arnstein & Lehr LLP

Washington, DC · 20006

202-295-6627

Martin D. Ostrowski

Reg. 66828

Patent attorney

Sughrue Mion, PLLC

Washington, DC · 20003

202-663-7406

Benjamin B. Oswald

Reg. 75807

Patent attorney

Morrison Foerster

Washington, DC · 20037

202-887-1500

Alexander P Ott

Reg. 63110

Patent attorney

McDermott Will & Emery LLP

Washington, DC · 20001

202-756-8496

David M Ovedovitz

Reg. 45336

Patent attorney

Wenderoth, Lind & Ponack, L.L.P.

Washington, DC · 20033-0099

202-721-8200

Mark A Pacella

Reg. 46974

Patent attorney

Wiley Rein, LLP

Washington, DC · 20006

202-719-7000

Michelle Pacholec

Reg. 71530

Patent attorney

Finnegan, Henderson, Farabow, Garrett & Dunner, LLP

Washington, DC · 20001-4413

202-408-4128

Jeffrey A Pade

Reg. 42970

Patent attorney

Paul Hastings, LLP

Washington, DC · 20036

202-551-1814

Russell O. Paige

Reg. 40758

Patent attorney

Wilt Toikka Kraft, LLP

Washington, DC · 20006

703-609-0771

Perry Palan

Reg. 26213

Patent attorney

Barnes & Thornburg LLP

Washington, DC · 20006

202-289-1313

Joseph E Palys

Reg. 46508

Patent attorney

Paul Hastings, LLP

Washington, DC · 20036

202-551-1996

Susan P Pan

Reg. 41239

Patent attorney

Suchrue Mion, PLLC

Washington, DC · 20037

202-663-7373

Brian H. Pandya

Reg. 60991

Patent attorney

Duane Morris LLP

Washington, DC · 20004

202-776-7807

John Pani

Reg. 74913

Patent attorney

Brinks Gilson & Lione

Washington, DC · 20006

202-296-6914

Gerson S Panitch

Reg. 33751

Patent attorney

Finnegan, Henderson, Farabow, Garrett & Dunner, LLP

Washington, DC · 20001-4413

202-408-4080

David M. Pankros

Reg. 61629

Patent attorney

Arrigo, Lee, Guttman & Mouta-Bellum LLP

Washington, DC · 20007

202-465-8143

Louis P Panzica· Jr.

Reg. 78508

Patent attorney

STERNE, KESSLER, GOLDSTEIN & FOX P.L.L.C.

Washington, DC · 20005

202-772-8954

Peter-Anthony Pappas

Reg. 83515

Patent agent

U.S. Senate

Washington, DC · 20510

202-224-6342

Steven M Pappas

Reg. 73904

Patent attorney

Sterne, Kessler, Goldstein & Fox, PLLC

Washington, DC · 20005

202-772-8719

Ameya V Paradkar

Reg. 72236

Patent attorney

Blank Rome LLP

Washington, DC · 20006

202-772-5849

Jessica L Parezo

Reg. 50286

Patent attorney

Covington & Burling LLP

Washington, DC · 20001

202-662-5498

Krupa K. Parikh

Reg. 73337

Patent attorney

Goodwin Procter, LLP

Washington, DC · 20001

202-346-4059

Joseph D Parish

Reg. 69949

Patent attorney

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

Washington, DC · 20005

202-772-8795

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.