ZIP 20001

Patent attorneys in ZIP code 20001 · District of Columbia

ZIP code 20001 in District of Columbia has 381 USPTO-registered patent practitioners listed at addresses inside the ZIP. Every practitioner shown holds an active license to practice before the US Patent and Trademark Office. Local offices include Finnegan, Henderson, Farabow, Garrett & Dunner, LLP and Covington & Burling LLP.

All practitioners

Gregory S DeLassus

Reg. 71695

Patent attorney

Rothwell, Figg, Ernst & Manbeck, P.C.

Washington, DC · 20001

202-772-5690

Yong Deng

Reg. 81035

Patent attorney

Allbelief Law Firm

Washington, DC · 20001

571-443-9140

Pier D DeRoo

Reg. 69340

Patent attorney

Finnegan, Henderson, Farabow, Garrett & Dunner, LLP

Washington, DC · 20001

202-408-4000

Natalie M Derzko

Reg. 48102

Patent attorney

Covington & Burling LLP

Washington, DC · 20001

202-662-5301

Paul Devinsky

Reg. 28553

Patent attorney

McDermott, Will & Emery LLP

Washington, DC · 20001

202-756-8369

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

Jacqueline A DiRamio

Reg. 66957

Patent agent

VENABLE LLP

Washington, DC · 20001

202-721-5420

Gregory S Discher

Reg. 42488

Patent attorney

Covington & Burling LLP

Washington, DC · 20001

202-662-5485

Priscilla G. Dodson

Reg. 72305

Patent attorney

Covington & Burling LLP

Washington, DC · 20001-4956

202-662-5996

Jason M Dorsky

Reg. 64710

Patent agent

Venable LLP

Washington, DC · 20001

202-721-5435

Ryan N. Douglas

Reg. 75626

Patent agent

Arnold & Porter Kaye Scholer LLP

Washington, DC · 20001-3743

202-942-5584

Lauren J Dowty

Reg. 74100

Patent attorney

Finnegan, Henderson, Farabow, Garrett

Washington, DC · 20001-4413

202-408-4000

Annmarie Dressler

Reg. 80028

Patent agent

Washington, DC · 20001

571-449-1652

Lauren J Dreyer

Reg. 70626

Patent attorney

Finnegan Henderson Farabow Garrett & Dunner

Washington, DC · 20001

202-408-4000

Carlos E Duarte Guevara

Reg. 80559

Patent agent

Finnegan Henderson Farabow Garrett &

Washington, DC · 20001

202-408-6013

Anthony M. Duncan· Jr.

Reg. 71904

Patent attorney

Nixon Peabody, LLP

Washington, DC · 20001

202-585-8336

Joseph F. Edell

Reg. 67625

Patent attorney

Dish Wireless LLC

Washington, DC · 20001

301-392-7718

Nicholas Albert Eitsert

Reg. 78843

Patent attorney

Finnegan, Henderson, Farabow, Garrett & Dunner LLP

Washington, DC · 20001

202-731-4524

Michael P Ellenberger

Reg. 75315

Patent attorney

Rothwell Figg

Washington, DC · 20001

612-987-5528

Kathryn M. Erklauer

Reg. 61339

Patent agent

Finnegan, Henderson, Farabow, Garrett & Dunner, LLP

Washington, DC · 20001

202-408-4000

Matthew Hays Everhart

Reg. 78158

Patent agent

Finnegan, Henderson, Farabow, Garrett & Dunner, LLP

Washington, D.C., DC · 20001-4413

202-408-4278

Nicholas L Evoy

Reg. 74552

Patent attorney

Covington & Burling LLP

Washington, DC · 20001

202-662-5098

Daniel T Falk

Reg. 71454

Patent attorney

FBT Gibbons LLP

Washington, DC · 20001

202-292-4170

Hannah Fan

Reg. 81395

Patent attorney

Washington, DC · 20001

248-719-5435

Mark J Feldstein

Reg. 46693

Patent attorney

Finnegan, Henderson, Farabow, Garrett & Dunner, LLP

Washington, DC · 20001-4413

202-408-4092

Milan F. Feliciello

Reg. 81220

Patent agent

Finnegan, Henderson, Farabow, Garrett & Dunner, LLP

Washington, DC · 20001

202-408-4317

Li Feng

Reg. 57292

Patent attorney

Finnegan, Henderson, Farabow, Garrett & Dunner, LLP

Washington, DC · 20001-4413

202-408-4000

Elizabeth D Ferrill

Reg. 58415

Patent attorney

Finnegan, Henderson, Farabow, Garrett & Dunner, LLP

Washington, DC · 20001

202-404-4445

Derrick L Fields

Reg. 50133

Patent agent

Washington, DC · 20001

202-528-9272

Common questions

Do patent attorneys in ZIP 20001 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 ZIP 20001 tend to track the broader District of Columbia legal market.

How many USPTO practitioners list a ZIP 20001 office?

381 USPTO-registered patent practitioners list a ZIP 20001 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 ZIP 20001 practitioner remotely?

Yes. All filings happen through USPTO's electronic Patent Center — no in-person presence is required. A ZIP 20001-based practitioner is convenient for local inventor signings and in-person meetings but not a requirement for representation.