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 Plumsea Law Group, LLC, Stanley Black & Decker, Inc., and Stanley Black and Decker, Inc..

Top cities in Maryland

All practitioners in Maryland

Nilou Sarah Arden

Reg. 71357

Patent agent

Baltimore, MD · 21218

415-871-6542

Sheena M. Aris

Reg. 78459

Patent agent

Rockville, MD · 20850

Kara M Armstrong

Reg. 38234

Patent attorney

Ellicott City, MD · 21042

410-206-7825

Steven P Arnheim

Reg. 43475

Patent attorney

Plumsea Law Group, LLC

Gaithersburg, MD · 20878

301-365-9040

Michael J Aronoff

Reg. 37770

Patent attorney

Stanley Black & Decker, Inc.

Towson, MD · 21286

410-716-3689

Adir Aronovich

Reg. 700004

Design practitioner

Silver Spring, MD · 20902

301-593-4328

Beverly Johnson Artale

Reg. 32366

Patent attorney

Columbia, MD · 21044

410-531-4769

Thomas P Athridge· Jr

Reg. 32645

Patent attorney

Glen Echo, MD · 20812

301-229-8036

Ariel L Atkinson

Reg. 69995

Patent attorney

Potomac, MD · 20854

716-361-5443

Jeffrey I Auerbach

Reg. 32680

Patent attorney

Rockville, MD · 20850-3662

301-910-4123

Adan Ayala

Reg. 38373

Patent agent

Stanley Black and Decker, Inc.

Towson, MD · 21286

410-716-2368

George Ayvazov

Reg. 37483

Patent agent

Berenato & White, LLC

Bethesda, MD · 20817

301-896-0607

Aslan Baghdadi

Reg. 34542

Patent attorney

Plumsea Law Group LLC

Gaithersburg, MD · 20878

301-325-4942

David J Bagnell

Reg. 80780

Patent agent

Annapolis, MD · 21401

410-212-3208

Mojdeh Bahar

Reg. 54798

Patent attorney

United States Department of Agriculture

Beltsville, MD · 20705-5131

301-504-6905

Anne-Marie Baker

Reg. 77518

Patent agent

Washington Grove, MD · 20880

301-312-0598

Sonia Baldia

Reg. 52436

Patent attorney

Sonia Baldia, Esq.

Chevy Chase, MD · 20815

301-654-3930

Peter A Balnave

Reg. 46199

Patent agent

Gibb & Riley LLC

Annapolis, MD · 21401

410-705-6400

David J Baltazar

Reg. 53964

Patent attorney

UM Ventures

College Park, MD · 20742

301-405-0915

Alexander T Bara

Reg. 74461

Patent attorney

Edell, Shapiro & Finnan, LLC

Gaithersburg, MD · 20878

240-864-2412

Alonzo Barber

Reg. 54980

Patent agent

Waldorf, MD · 20602

301-638-2850

Timothy M Barlow

Reg. 50018

Patent attorney

U.S. Army DEVCOM

Aberdeen Proving Ground, MD · 21005

240-762-3874

Rhonda Lynn Barton

Reg. 47271

Patent attorney

The Black & Decker Corporation

Towson, MD · 21286

410-716-2886

Daryl A Basham

Reg. 45869

Patent attorney

MDIP LLC

Montgomery Village, MD · 20886-2630

212-412-6986

Nirmal S Basi

Reg. 66533

Patent agent

Gaithersburg, MD · 20879

301-213-8399

Padmavathi V. Baskar

Reg. 81003

Patent agent

Ellicott City, MD · 21042

410-446-3479

Thomas J Bassolino

Reg. 65946

Patent attorney

Bass Patent Law, LLC

Frederick, MD · 21701

646-238-1234

Kavita Battula

Reg. 54262

Patent attorney

Rockville, MD · 20855

240-997-0179

Deanna L Baxam

Reg. 45266

Patent attorney

Frederick, MD · 21705

678-462-0041

James B Bechtel

Reg. 29890

Patent attorney

James B. Bechtel, LLC

Annapolis, MD · 21401

410-703-8482

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.