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, Covington & Burling LLP, and Fenwick & West LLP.

Top cities in District of Columbia

All practitioners in District of Columbia

Kathleen T DiNapoli

Reg. 82294

Patent agent

Fenwick & West LLP

Washington, DC · 20004

202-970-3014

Bryan Christopher Diner

Reg. 32409

Patent attorney

Finnegan, Henderson, Farabow, Garrett & Dunner, LLP

Washington, DC · 20001

202-408-4000

Cathy C Ding

Reg. 52820

Patent agent

Finnegan, Henderson, Farabow, Garrett & Dunner, LLP

Washington, DC · 20001-4413

404-653-6560

Xuechen Ding

Reg. 84180

Patent attorney

Banner & Witcoff Ltd

Washington, DC · 20005

202-824-3308

Anthony Dinkins

Reg. 58654

Patent agent

Washington, DC · 20020

202-494-6248

Donald Anthony DiPaula

Reg. 58115

Patent attorney

Jefferson IP Law, LLP

Washington, DC · 20036

202-293-0804

Rachael P. Dippold

Reg. 73015

Patent attorney

Washington, DC · 20008

215-847-6171

Jacqueline A DiRamio

Reg. 66957

Patent agent

VENABLE LLP

Washington, DC · 20001

202-721-5420

Juliet Mitchell Dirba

Reg. 53334

Patent attorney

Smith Baluch

Washington, DC · 20003

512-909-4153

Gregory S Discher

Reg. 42488

Patent attorney

Covington & Burling LLP

Washington, DC · 20001

202-662-5485

Amanda J Dittmar

Reg. 73217

Patent agent

Bookoff McAndrews PLLC

Washington, DC · 20037

202-803-8068

Mayankkumar M Dixit

Reg. 44064

Patent attorney

Naval Sea Systems Command

Washington, DC · 20376

202-781-2788

Keith L Dixon

Reg. 37983

Patent attorney

Office of General Counsel, SAF/GCQ

Washington, DC · 20310

443-458-2707

John H Dodds

Reg. 45533

Patent attorney

Dodds & Associates

Washington, DC · 20036

202-463-3275

Priscilla G. Dodson

Reg. 72305

Patent attorney

Covington & Burling LLP

Washington, DC · 20001-4956

202-662-5996

Gibson I Donnan

Reg. 83404

Patent agent

Washington, DC · 20009

585-243-2116

Christopher V. Donofrio

Reg. 80115

Patent agent

Arent Fox

Washington, DC · 20006-5344

248-979-4100

Edward C Donovan

Reg. 35121

Patent attorney

Kirkland and Ellis, LLP

Washington, DC · 20005

202-879-5289

Gerard M Donovan

Reg. 67771

Patent attorney

Reed Smith LLP

Washington, DC · 20005

202-414-9224

Michael Adam Dorfman

Reg. 46669

Patent attorney

Barclay Damon LLP

Washington, DC · 20036

202-689-1906

Rachel A Dorfner

Reg. 84385

Patent agent

Washington, DC · 20008

412-719-0634

Christian M. Dorman

Reg. 79118

Patent attorney

McKool Smith

Washington, DC · 20006

202-370-8300

Joseph R. Dorris

Reg. 78810

Patent attorney

Washington, DC · 20010

423-903-4820

Daniel Kevin Dorsey

Reg. 32520

Patent attorney

Law Office of Daniel K. Dorsey

Washington, DC · 20004

202-347-9000

Jason M Dorsky

Reg. 64710

Patent agent

Venable LLP

Washington, DC · 20001

202-721-5435

Dipu Ashvin Doshi

Reg. 60073

Patent attorney

Blank Rome LLP

Washington, DC · 20006

202-420-2604

Ryan N. Douglas

Reg. 75626

Patent agent

Arnold & Porter Kaye Scholer LLP

Washington, DC · 20001-3743

202-942-5584

Matthew James Dowd

Reg. 47534

Patent attorney

Dowd Scheffel PLLC

Washington, DC · 20006

202-573-3853

Lauren J Dowty

Reg. 74100

Patent attorney

Finnegan, Henderson, Farabow, Garrett

Washington, DC · 20001-4413

202-408-4000

Scott W Doyle

Reg. 39176

Patent attorney

Kelley Drye & Warren

Washington, DC · 20007

202-342-8845

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.