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, Jones Day, and Morgan, Lewis & Bockius LLP.

Top cities in District of Columbia

All practitioners in District of Columbia

Sarah Anne Kagan

Reg. 32141

Patent attorney

Banner & Witcoff, Ltd.

Washington, DC · 20005

202-824-3151

Evan Lorn Kahn

Reg. 35912

Patent attorney

Potomac Law Group

Washington, DC · 20004

202-204-3005

Anthony H Kahng

Reg. 42704

Patent attorney

Samsung Electronics America, Inc.

Washington, DC · 20036

202-887-5671

Kathleen B Kalafus

Reg. 64941

Patent agent

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

Washington, DC · 20005

202-772-8528

Stephanie R. Kalen

Reg. 80511

Patent agent

Sughrue Mion, PLLC

Washington, DC · 20006

202-857-2247

Charles E Kaler

Reg. 66891

Patent agent

Washington, DC · 20024

302-240-5909

Yury Kalish

Reg. 72538

Patent attorney

Jones Day

Washington, DC · 20001

202-879-3616

Jeffri Kaminski

Reg. 42709

Patent attorney

Venable, LLP

Washington, DC · 20001

202-344-4048

Michael David Kaminski

Reg. 32904

Patent attorney

Foley & Lardner LLP

Washington, DC · 20007

202-672-5490

Stephen T Kaminski

Reg. 46817

Patent attorney

Covington & Burling

Washington, DC · 20004

202-662-5378

Ronald J Kamis

Reg. 41104

Patent attorney

The Law Office of Ronald J Kamis

Washington, DC · 20015

202-686-2625

Aaron S Kamlay

Reg. 58813

Patent attorney

Butzel Long

Washington, DC · 20006

202-454-2877

Aashni Kamra

Reg. 902709

Limited recognition

American University, Washington College of Law

Washington, DC · 20016

805-304-2091

Ronald P Kananen

Reg. 24104

Patent attorney

Rader Rishman and Grauer PLLC

Washington, DC · 20036

202-955-3750

Leila R Kanani

Reg. 52399

Patent agent

Stratus IP Law Group LLP

Washington, DC · 20006

202-827-1231

Daniel T Kane

Reg. 77650

Patent attorney

Executive Office of the President

Washington, DC · 20503

845-264-1268

Jianke Kang

Reg. 72445

Patent agent

Morgan, Lewis & Bockius LLP

Washington, DC · 20004

202-739-5183

Seongyoune Sean Kang

Reg. 65690

Patent attorney

Quantum Patent Law Firm

Washington, DC · 20006

202-428-4750

Adam Seth Kaplan

Reg. 59435

Patent attorney

PCT Law Group, PLLC

Washington, DC · 20036

202-683-9945

John J Kaplan

Reg. 46080

Patent attorney

Finnegan, Henderson, Farabow, Garrett

Washington, DC · 20001-4413

202-408-4000

Anchit Kapoor

Reg. 64723

Patent attorney

Shruti Law PLLC

Washington, DC · 20005

888-495-9510

Jeffrey David Karceski

Reg. 35914

Patent attorney

Karceski IP Law, PLLC

Washington, DC · 20006

202-349-9868

Alieu D Kargbo

Reg. 59000

Patent agent

WASHINGTON, DC · 20019

202-422-7788

Laba Karki

Reg. 55317

Patent agent

Morgan, Lewis & Bockius LLP

Washington, DC · 20004

202-739-5590

Sibani Karki

Reg. 64772

Patent agent

Sterne Kessler Goldstein & Fox

Washington, DC · 20005

202-772-8705

Andrew D Kasnevich

Reg. 59436

Patent attorney

Hunton Andrews Kurth LLP

Washington, DC · 20037

202-662-2770

Alan J Kasper

Reg. 25426

Patent attorney

Sughrue Mion, PLLC

Washington, DC · 20037

202-293-7060

Darren J Kassab

Reg. 71302

Patent attorney

Jones Day

Washington, DC · 20001

202-879-3889

Chris J Katopis

Reg. 40347

Patent attorney

Washington, DC · 20017

202-986-5936

Lisa M Kattan

Reg. 47697

Patent attorney

Baker Botts, LLP

Washington, DC · 20004

202-639-7701

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.