Maryland

Patent attorneys in Maryland

Maryland hosts 1,200 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 Maryland. 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 Edell, Shapiro & Finnan, LLC, GSK Vaccines, and NIH.

Top cities in Maryland

All practitioners in Maryland

Gillian M Fenton

Reg. 36508

Patent attorney

GSK Vaccines

Rockville, MD · 20850

240-938-0496

Steven M Ferguson

Reg. 38448

Patent agent

NIH

Rockville, MD · 20852

301-435-5561

Jennifer P Ferragut

Reg. 45433

Patent attorney

Department of Defense

Fort Meade, MD · 20755-6542

301-688-0287

Corey Maxwell Ferrick

Reg. 78976

Patent agent

University of Maryland, College Park

College Park, MD · 20742

301-405-4775

Fred O. Ferris· III

Reg. 83080

Patent agent

Port Republic, MD · 20676

301-588-3504

Thomas C Fiala

Reg. 43610

Patent attorney

Chevy Chase, MD · 20815

202-306-0447

H Robert Field

Reg. 41745

Patent attorney

Conwell Law LLC

Crofton, MD · 21114-1337

410-451-2707

Rochelle C. Fink

Reg. 50462

Patent attorney

U.S. Food and Drug Administration

Silver Spring, MD · 20993

301-796-0838

Stephen L Finley

Reg. 36357

Patent agent

National Institutes of Health

Rockville, MD · 20852

301-435-4082

James S Finn

Reg. 38450

Patent attorney

Annapolis, MD · 21401

202-607-4607

Patrick J Finnan

Reg. 39189

Patent attorney

Edell, Shapiro & Finnan, LLC

Gaithersburg, MD · 20878

301-424-3640

Lucas P. Firlie

Reg. 83261

Patent attorney

Timonium, MD · 21093

443-340-0131

Dean T Fisher

Reg. 30531

Patent attorney

Fallston, MD · 21047

443-417-5696

William J Fisher

Reg. 32133

Patent attorney

Plumsea Law Group, LLC

Gaithersburg, MD · 20878

240-380-2465

Debra J. Flint

Reg. 60846

Patent agent

Rockville, MD · 20850

443-497-2525

David Andrew Floam

Reg. 34597

Patent agent

Edell, Shapiro & Finnan, LLC

Gaithersburg, MD · 20878

301-424-3640

Philip A Florenzo

Reg. 39977

Patent agent

Florenzo Law, LLC

Mt. Airy, MD · 21771

301-801-8448

Patrick L Fogle

Reg. 58301

Patent agent

Lonza America

Rockville, MD · 20850

301-401-9448

Donald D Forrer

Reg. 33576

Patent attorney

Annapolis, MD · 21401

410-849-2487

Michael J Foycik· Jr

Reg. 30928

Patent attorney

Michael Foycik

Silver Spring, MD · 20901

202-579-6867

Eric C. Frank

Reg. 82440

Patent agent

Ellicott City, MD · 21042

443-797-7657

Robert J Frank

Reg. 19112

Patent attorney

Kensington, MD · 20895

301-933-0918

Shawn Williams Fraser

Reg. 45886

Patent attorney

Lockheed Martin Corporation

Bethesda, MD · 20817

301-897-6191

Karl D Frech

Reg. 80727

Patent agent

Mechanicsville, MD · 20659

240-298-8893

William L Freeh

Reg. 21071

Patent attorney

Chevy Chase, MD · 20850

301-709-6950

Patrick J Frenchick

Reg. 41025

Patent agent

Cyt Immune Sciences, Inc

Rockville, MD · 20850

240-864-2796

Michael K. Fretwell

Reg. 80482

Patent attorney

Laubscher & Laubscher P.C.

Annapolis, MD · 21403

410-280-6608

Willmon Fridie

Reg. 80963

Patent agent

Lanham, MD · 20706

202-841-3897

Alan M Friedman

Reg. 27330

Patent agent

Intelligent Interfaces

Potomac, MD · 20854

240-731-3586

Charles K Friedman

Reg. 39195

Patent attorney

Potomac, MD · 20854

240-506-0462

Common questions

Do I need a patent attorney based in Maryland?

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 Maryland-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 Maryland?

1,200 active USPTO-registered patent practitioners list a Maryland 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.