Washington, District of Columbia

Patent attorneys in Washington

Washington, District of Columbia is home to 2,587 USPTO-registered patent practitioners. Working with a local practitioner can streamline in-person meetings for invention disclosures, signing inventor declarations, and reviewing prior-art search results — but every USPTO practitioner is licensed to practice nationally, so a non-local choice is also valid. Local firms with the most USPTO-registered practitioners include Finnegan, Henderson, Farabow, Garrett & Dunner, LLP, Covington & Burling LLP, and Office of Unfair Import Investigations.

Jennifer M. Dienes

Reg. 71222

Patent attorney

Office of Unfair Import Investigations

Washington, DC · 20436

202-708-5408

Allison W. Dietrich

Reg. 79014

Patent agent

Fish & Richardson P.C.

Washington, DC · 20024

202-626-6423

Paul Edward Dietze

Reg. 45627

Patent attorney

Parker, Poe, Adams & Bernstein, LLP

Washington, DC · 20005

202-854-2815

Andrew J DiFazio

Reg. 63452

Patent attorney

Washington, DC · 20007

207-838-4005

Alexia S M Dilg

Reg. 78052

Patent agent

Cooley LLP

Washington, DC · 20004

202-842-7815

Anthony DiLorenzo

Reg. 52442

Patent agent

Washington, DC · 20043

Michael J Dimino

Reg. 44657

Patent attorney

Arent Fox LLP

Washington, DC · 20006

202-714-5007

Marcelle Dina Zita

Reg. 83865

Patent agent

Washington, DC · 20006

202-505-6688

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

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

Common questions

Do patent attorneys in Washington cost more than the national average?

Patent attorney fees vary primarily by experience and complexity of the invention, not by city. A typical provisional patent application in the US runs $1,500 to $5,000; a non-provisional utility filing runs $5,000 to $15,000. Hourly rates in Washington tend to track the broader District of Columbia legal market.

How many USPTO practitioners list a Washington office?

2,587 USPTO-registered patent practitioners list a Washington mailing address on the OEDCI roster. You can sort by firm size and contact each directly using the phone numbers shown.

Can I work with a Washington practitioner remotely?

Yes. All filings happen through USPTO's electronic Patent Center — no in-person presence is required. A Washington-based practitioner is convenient for local inventor signings and in-person meetings but not a requirement for representation.