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 Sughrue Mion, PLLC, Rothwell, Figg, Ernst & Manbeck, P.C., and ArentFox Schiff LLP.

Top cities in District of Columbia

All practitioners in District of Columbia

Johnny Ma

Reg. 59976

Patent attorney

ArentFox Schiff LLP

Washington, DC · 20006

202-857-8952

Jill Kirsten MacAlpine

Reg. 60475

Patent attorney

Finnegan, Henderson, Farabow, Garrett & Dunner, LLP

Washington, DC · 20001

202-408-4105

Andrew T Maccabe

Reg. 50673

Patent attorney

Association of American Veterinary

Washington, DC · 20005-3536

202-371-9195

Judy J MacDonald

Reg. 57979

Patent agent

Washington, DC · 20007

646-299-5679

Ann M Mace

Reg. 54289

Patent attorney

Crowell & Moring LLP

Washington, DC · 20004

202-624-2711

Corey D Mack

Reg. 54821

Patent attorney

MACK IP LAW, LLC

Washington, DC · 20005

202-827-9990

Susan J Mack

Reg. 30951

Patent attorney

Sughrue Mion, PLLC

Washington, DC · 20037

202-293-7060

Tyler Maddry

Reg. 40074

Patent attorney

Hunton & Williams, LLP

Washington, DC · 20006

202-955-1964

Atticus D Madison

Reg. 32924

Patent attorney

Washington, DC · 20010

202-246-5316

Berlin Madison

Reg. 57731

Patent attorney

Berlin Madison PLLC

Washington, DC · 20010

314-367-3325

Stephen Bradford Maebius

Reg. 35264

Patent attorney

Foley & Lardner LLP

Washington, DC · 20007

202-672-5569

Melanie M. Magdun

Reg. 79768

Patent attorney

Finnegan, Henderson, Farabow, Garrett & Dunner LLP

Washington, DC · 20001

202-408-4156

Benjamin D. Maggin

Reg. 75203

Patent attorney

Brown Rudnick LLP

Washington, DC · 20005

202-536-1791

Malissa S Magiera

Reg. 78395

Patent attorney

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

Washington, DC · 20001

202-845-5334

Shaun P. Mahaffy

Reg. 75534

Patent attorney

Williams & Connolly LLP

Washington, DC · 20024

202-434-5554

Jennifer Rebecca Mahalingappa

Reg. 47765

Patent attorney

United States Department of Energy

Washington, DC · 20585

202-287-5702

Anne Marie Maher

Reg. 38231

Patent attorney

U.S. Court of Appeals for the Federal Circuit

Washington, DC · 20439

202-275-8064

Kassity L Mai

Reg. 68774

Patent attorney

Cooley LLP

Washington, DC · 20004-2400

202-452-8800

Seth A Mailhot

Reg. 50570

Patent attorney

Nixon Peabody LLP

Washington, DC · 20004-2128

202-585-8196

Jennifer B. Maisel

Reg. 71231

Patent agent

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

Washignton, DC · 20005

202-783-6040

Stephanie F. Majkut

Reg. 78624

Patent agent

Banner Witcoff, LLC

Washington, DC · 20003

202-824-3324

Michael A Makuch

Reg. 32263

Patent attorney

Smith, Gambrell & Russell

Washington, DC · 20036

202-263-4300

George M Maliha

Reg. 75485

Patent agent

Sidley Austin LLP

Washington, DC · 20005

806-584-3006

Brian J Malkin

Reg. 57620

Patent attorney

Spencer Fane LLP

Washington, DC · 20006

202-921-7388

Michael W Mallory

Reg. 59997

Patent agent

Washington, DC · 20011

202-906-9956

Scott D Malpede

Reg. 32533

Patent agent

Fitzpatrick, Cella, Harper & Scinto

Washington, DC · 20004-1405

202-530-1010

Nathan S Mammen

Reg. 54892

Patent attorney

Reichman Jorgensen Lehman & Feldberg LLP

Washington, DC · 20006

202-988-2827

William H Mandir

Reg. 32156

Patent attorney

Sughrue Mion, PLLC

Washington, DC · 20037

202-293-7060

Christopher T. Marando

Reg. 67898

Patent attorney

Perkins Coie LLP

Washington, DC · 20005

202-654-6227

Tara L Marcus

Reg. 46510

Patent attorney

Blank Rome, LLP

Washington, DC · 20037

202-772-5957

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.