District of Columbia

Patent attorneys in District of Columbia

District of Columbia hosts 2,661 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 Sughrue Mion, PLLC, Finnegan, Henderson, Farabow, Garrett & Dunner, LLP, and Adduci Mastriani and Schaumberg LLP.

Top cities in District of Columbia

All practitioners in District of Columbia

Stephanie S. Ham

Reg. 81020

Patent agent

Washington, DC · 20001-4413

703-389-1274

Sarah Elizabeth Hamblin

Reg. 48628

Patent attorney

Adduci Mastriani and Schaumberg LLP

Washington, DC · 20036

202-467-6300

Arash Hamidi

Reg. 74010

Patent attorney

Bookoff McAndrews PLLC

Washington, DC · 20006

202-313-7194

Charles D Hammond

Reg. 73287

Patent attorney

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

Washington, DC · 20005

202-772-8551

Austin K Hampton

Reg. 61665

Patent agent

Covington & Burling LLP

Washington, DC · 2004-2401

202-662-5697

Bobby Gene Hampton· III

Reg. 79136

Patent attorney

Wilmer Cutler Pickering Hale & Dorr LLP

Washington, D.C., DC · 20037

417-773-6789

Philip G Hampton· II

Reg. 30642

Patent attorney

Polsinelli PC

Washington, DC · 20005

202-791-8792

Brian William Hannon

Reg. 32778

Patent attorney

Sughrue Mion, PLLC

Washington, DC · 20006

202-293-7060

Donald W Hanson

Reg. 27133

Patent attorney

Krate, Quintos & Hanson LLP

Washington, DC · 20005

202-659-2930

M. Aamir Haq

Reg. 61092

Patent attorney

Foley and Lardner LLP

Washington, DC · 20007

202-672-5394

Lawrence Harbin

Reg. 27644

Patent attorney

Harbin & Hein PLLC

Washington, DC · 20003

202-543-7600

Tyler J Hardman

Reg. 75823

Patent attorney

Sughrue Mion, PLLC

Washington, DC · 20006-1811

202-775-7570

Shahar Harel

Reg. 73203

Patent attorney

U. S. Department of Justice

Washington, DC · 20530

202-305-3075

Rebecca L. Harker

Reg. 65681

Patent agent

McDermott, Will & Emery, LLP

Washington, DC · 20001-1531

202-756-8248

Blaney Harper

Reg. 33897

Patent attorney

Jones Day

Washington, DC · 20001

202-879-3939

Colin J Harrington

Reg. 67051

Patent attorney

Arent Fox LLP

Washington, DC · 20006-5344

202-857-6163

Charles Hillary Harris

Reg. 34616

Patent attorney

Department of the Army

Washington, DC · 20310-0104

703-697-7294

Charles R. Harris

Reg. 79668

Patent attorney

Washington, DC · 20439

202-275-8000

Ronald C Harris· Jr

Reg. 48901

Patent attorney

The Harris Firm

Washington, DC · 20001

703-786-7661

John K Harrop

Reg. 41817

Patent attorney

Andrews Kurth LLP

Washington, DC · 20006

202-662-3050

Aydin H Harston

Reg. 65249

Patent attorney

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

Washington, DC · 20005

202-783-6040

Thomas E. Hart

Reg. 81259

Patent attorney

Sterne, Kessler, Goldstein & Fox PLLC

Washington, DC · 20005

202-371-2600

Kerry Hartman

Reg. 41818

Patent attorney

Kilpatrick Townsend & Stockton LLP

Washington, DC · 20005-2018

202-481-9955

Anthony A Hartmann

Reg. 43662

Patent attorney

Finnegan, Henderson, Farabow, Garrett & Dunner, LLP

Washington, DC · 20001-4413

202-408-4275

Jared M Hartzman

Reg. 70255

Patent agent

Fish & Richardson P.C.

Washington, DC · 20024

845-323-7563

Nida Hasan

Reg. 66171

Patent agent

Washington, DC · 00000

000-000-0000

Justin J Hasford

Reg. 62180

Patent attorney

Finnegan, Henderson, Farabow, Garrett & Dunner, LLP

Washington, DC · 20001

202-408-4000

Lauren E Haskell

Reg. 83406

Patent agent

Foley & Lardner LLP

Washington, DC · 20007

202-295-4083

Sarah Hassan

Reg. 80279

Patent attorney

Baker Botts LLP

Washington, DC · 20001

202-639-7791

Georg M Hasselmann

Reg. 62324

Patent attorney

Tautz & Schuhmacher LLC

Washington, DC · 20007

202-618-9408

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?

2,661 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.