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 Cooley LLP, Finnegan Henderson Farabow Garrett & Dunner, LLP, and Steptoe & Johnson LLP.

Top cities in District of Columbia

All practitioners in District of Columbia

Fumin Shi

Reg. 76165

Patent attorney

Cooley LLP

Washington, DC · 20004-2400

202-776-2064

Henry Joe Shikani

Reg. 74972

Patent agent

Finnegan Henderson Farabow Garrett & Dunner, LLP

Washington, DC · 20001

202-408-4330

Daniel Wooseob Shim

Reg. 56995

Patent attorney

Steptoe & Johnson LLP

Washington, DC · 20036

202-429-6454

Jay Shim

Reg. 41308

Patent attorney

Samsung Electronics Co., Ltd.

Washington, DC · 20036

202-296-0227

Jung S. Shim

Reg. 74388

Patent attorney

Bryan Cave Leighton Paisner LLP

Washington, DC · 20004-1357

202-508-6065

Maeng-Ho Shin

Reg. 53859

Patent agent

Jefferson IP Law, LLP

Washington, DC · 20036

202-293-2941

Steven D. Shipe

Reg. 71944

Patent attorney

Barnes & Thornburg LLP

Washington, DC · 20004

202-408-6924

Deepa J. Shiwcharan

Reg. 82896

Patent attorney

Washington, DC · 20005

202-772-1284

Darryl W Shorter

Reg. 47942

Patent attorney

Morris & Kamlay, LLP

Washington, DC · 20036

202-787-5531

Ruth B. Siboni

Reg. 76622

Patent agent

NASA - HQ, Office 7E78

Washington, DC · 20546

910-232-4605

Saqib J Siddiqui

Reg. 68626

Patent attorney

Mayer Brown

Washington, DC · 20006

202-263-3167

Christopher J. Siebens

Reg. 66591

Patent agent

Orrick, Herrington & Sutcliffe LLP

Washington, DC · 20005-1706

202-339-8400

Neil Barry Siegel

Reg. 25200

Patent attorney

Sughrue Mion, PLLC

Washington, DC · 20037

202-293-7060

Matthew D. Sieger

Reg. 76051

Patent attorney

Weil Gotshal & Manges LLP

Washington, DC · 20005-3314

202-682-7177

Kirk A. Sigmon

Reg. 76326

Patent attorney

Banner & Witcoff Ltd.

Washington, DC · 20005

202-824-3000

Marian Silberstein

Reg. 65934

Patent agent

Brake Hughes Bellermann LLP

Washington, DC · 20006

202-470-6455

Blair A Silver

Reg. 68003

Patent attorney

Banner & Witcoff, Ltd.

Washington, DC · 20005-4051

202-824-3000

Sam Silverberg

Reg. 43370

Patent attorney

Washington, DC · 20015

301-519-1174

Alexander E Silverman

Reg. 37940

Patent attorney

Ericsson

Washington, DC · 20006

301-708-5483

Jesse L. Silvernail

Reg. 80051

Patent attorney

Bookoff McAndrews, PLLC

Washington, DC · 20006

321-298-9634

Matthew Y. Sim

Reg. 77422

Patent attorney

Steptoe LLP

Washington DC, DC · 20036

202-429-5501

Jeffrey Allan Simenauer

Reg. 31933

Patent attorney

Law Offices Of Jeffrey A Simenauer

Washington, DC · 20037

240-353-3536

Michele M Simkin

Reg. 34717

Patent attorney

Foley & Lardner LLP

Washington, DC · 20007

202-672-5530

Charles T Simmons

Reg. 35359

Patent attorney

Law Offices of Charles T. Simmons, LLC

Washington, DC · 20036

202-669-8971

Naira C. Simmons

Reg. 72983

Patent attorney

Pierson Ferdinand LLP

Washington, DC · 20004

516-408-2096

Garfield B Simms

Reg. 45109

Patent attorney

Banner Witcoff, Ltd.

Washington, DC · 20005

202-824-3198

Joel S Simon

Reg. 70271

Patent attorney

Bookoff McAndrews PLLC

Washington, DC · 20006

202-808-3560

Geoffrey H. Simpson

Reg. 60867

Patent attorney

Webster, Frederickson & Brackshaw

Washington, DC · 20006

202-659-8510

Hamilton C Simpson

Reg. 69929

Patent attorney

Washington, DC · 20036

205-903-9762

Daphne Lauren Singer

Reg. 902715

Limited recognition

American University, Washington College of Law

Washington, DC · 20016

314-996-9946

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.