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 University of Maryland School of Law, Centers for Medicare & Medicaid Services, and Johns Hopkins University.

Top cities in Maryland

All practitioners in Maryland

William Lee Miller

Reg. 47363

Patent agent

Lavale, MD · 21502

301-777-0305

Andrea Grace Klock Mills

Reg. 66946

Patent agent

Chevy Chase, MD · 20815

512-293-9416

Michelle Elena Milter

Reg. 901482

Limited recognition

University of Maryland School of Law

Baltimore, MD · 21201

443-591-0240

Don H Min

Reg. 55933

Patent attorney

Olney, MD · 20832

301-260-1833

Craig A Miner

Reg. 50290

Patent agent

Centers for Medicare & Medicaid Services

Baltimore, MD · 21244

Lidiya A. Mishchenko

Reg. 71171

Patent agent

Sykesville, MD · 21784

443-804-8524

Katelyn S. Mistretta

Reg. 84216

Patent agent

Rockville, MD · 20851

603-978-8645

Laura M. Mitchell

Reg. 63532

Patent agent

Johns Hopkins University

Baltimore, MD · 21201

410-516-4969

Harry I Moatz

Reg. 69553

Patent attorney

Potomac, MD · 20854

301-461-3826

Ali Mohammadabadi

Reg. 81965

Patent agent

Laurel, MD · 20708

202-810-2077

Balambal Mohan

Reg. 74380

Patent agent

Baltimore, MD · 21217

559-361-0449

Aisha A Moinuddin

Reg. 68820

Patent attorney

Plumsea Law Group, LLC

Gaithersburg, MD · 20878

301-365-9040

Lissi M Mojica

Reg. 63421

Patent agent

Answers IP, LLC

Sunderland, MD · 20689

443-362-0479

Timothy P Monaghan

Reg. 38971

Patent attorney

Mechanicsville, MD · 20659

301-472-4070

Mark A Montana

Reg. 44948

Patent attorney

W.R. Grace & Co.

Columbia, MD · 21044

410-531-4795

Pierce A Mooney

Reg. 80968

Patent agent

Odenton, MD · 21113

202-556-1004

Chester Gunn Moore· III

Reg. 53345

Patent attorney

McBee Moore Woodward & Vanik IP, LLC

Frederick, MD · 21701

301-453-6103

David E Moore

Reg. 59047

Patent attorney

Columbia, MD · 21045

202-375-9052

John D Moore

Reg. 75487

Patent agent

Brandywine, MD · 20613

405-250-0665

Joseph L. Morales

Reg. 58835

Patent attorney

The Morales Law Firm, LLC

Baltimore, MD · 21212

443-315-7929

Marjorie A. Moran

Reg. 79059

Patent agent

Derwood, MD · 20855

301-651-8727

Jack H Morgan· Jr.

Reg. 69139

Patent attorney

Rockville, MD · 20852

781-223-1074

Shaghayegh Morshedian

Reg. 77719

Patent attorney

GSK

Rockville, MD · 20850

202-897-8156

Mark Gordon Mortenson

Reg. 31182

Patent attorney

North East, MD · 21901

443-309-5347

Emily C. Moscati

Reg. 69178

Patent attorney

Army Research Laboratory

Adelphi, MD · 20783

301-394-3790

William Robert Moser

Reg. 24763

Patent attorney

Darmascus, MD · 20872

301-253-4128

Mary E Mosher

Reg. 74418

Patent agent

Nanjemoy, MD · 20662

301-246-4143

Nelson Moskowitz

Reg. 56128

Patent attorney

Silver Spring, MD · 20902

301-649-2698

Jonathan R. Motley

Reg. 81098

Patent agent

NIH (National Institutes of Health)

Rockville, MD · 20852

240-669-5209

Xiaochun Mou

Reg. 72364

Patent agent

Laurel, MD · 20723

410-350-9632

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.