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, Baker & McKenzie LLP, and US Court of Appeals for the Federal Circuit.

Top cities in District of Columbia

All practitioners in District of Columbia

Carlos R. Perez Toro

Reg. 69978

Patent attorney

Baker & McKenzie LLP

Washington, DC · 20006-4078

202-835-6199

Alexander Pergament

Reg. 58354

Patent agent

US Court of Appeals for the Federal Circuit

Washington, DC · 20005

202-275-8666

Alexander S Perry

Reg. 68030

Patent attorney

Blank Rome LLP

Washington, DC · 20006

202-420-3115

Raymond Bernardo Persino

Reg. 58082

Patent attorney

Jefferson IP Law, LLP

Washington, DC · 20036

202-293-0804

Hannah L. Peters

Reg. 76556

Patent agent

Cooley LLP

Washington, DC · 20221

202-776-2172

Steven W Peters

Reg. 73193

Patent attorney

Cleary Gottlieb Steen & Hamilton LLP

Washington, DC · 20036

202-974-1813

Samara C Petersen

Reg. 83415

Patent attorney

Washington, DC · 20005

480-907-8873

Troy A Petersen

Reg. 56827

Patent attorney

Kilpatrick Townsend & Stockton LLP

Washington, DC · 22307

202-481-9933

Lauren E Peterson

Reg. 62084

Patent attorney

Adduci, Mastriani, & Schaumberg LLP

Washington, DC · 20036

202-407-8646

Liane M. Peterson

Reg. 83319

Patent attorney

Foley & Lardner LLP

Washington, DC · 20007

202-945-6116

Stephen Leroy Peterson

Reg. 26325

Patent attorney

Finnegan, Henderson, Farabow, Garrett & Dunner LLP

Washington, DC · 20001-4413

202-408-4003

Daniel J Petkovsek

Reg. 60721

Patent agent

Washington, DC · 20009

571-235-7371

Susan P Petraglia

Reg. 35044

Patent attorney

Washington, DC · 20002

202-546-0964

Henry August Petri

Reg. 33063

Patent attorney

Polsinelli PC

Washington, DC · 20001

202-777-8928

Julie Ann Petruzzelli

Reg. 40769

Patent attorney

Goodwin Procter, LLP

Washington, DC · 20001

202-346-4000

Heather M. Petruzzi

Reg. 71270

Patent attorney

Wilmer Cutler Pickering Hale and Dorr LLP

Washington, DC · 20037

202-663-6000

Nathan F. Phares

Reg. 72592

Patent attorney

Dinsmore & Shohl

Washington, D.C., DC · 20004

202-372-9123

Jordan D Phelan

Reg. 73852

Patent agent

Cooley LLP

Washington, DC · 20004-2400

202-728-7066

Brandon B. Phemester

Reg. 83744

Patent agent

Venable LLP

Washington, DC · 20001

407-920-8528

Graham C Phero

Reg. 64228

Patent attorney

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

Washington, DC · 20005

202-772-8860

Matthew C Phillips

Reg. 43403

Patent attorney

Laurence & Phillips IP Law

Washington, DC · 20036

503-964-1129

Sarah Gates Picchini

Reg. 902134

Limited recognition

The George Washington University School of Law

Washington, DC · 20052

850-830-9011

Brian E. Piccione

Reg. 84033

Patent agent

Sterne, Kessler, Goldstein & Fox PLLC

Washington, DC · 20005

202-772-8709

Byron L. Pickard

Reg. 65172

Patent attorney

Sterne, Kessler, Goldstein & Fox PLLC

Washington, DC · 20005

202-371-2600

Ben V. Picozzi

Reg. 76862

Patent attorney

Williams & Connolly LLP

Washington, DC · 20024

202-434-5266

Charles H Pierce

Reg. 65219

Patent agent

Washington, DC · 20037

510-926-5699

Trevor A. Pierce

Reg. 76337

Patent attorney

Bookoff McAndrews PLLC

Washington, DC · 20006

202-304-1486

Namitha Pillai

Reg. 81187

Patent agent

Smith Baluch LLP

Washington, DC · 20003

571-643-2504

Justin D Pine

Reg. 65097

Patent attorney

Regeneron Pharmaceuticals, Inc.

Washington, DC · 20005

202-549-3596

Andrew A. Pinkard

Reg. 80953

Patent attorney

Washington, DC · 20001

929-318-2723

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.