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 U.S. Food and Drug Administration, U.S. Army Research Laboratory, and National Cancer Institute, NIH.

Top cities in Maryland

All practitioners in Maryland

Michele A Cimbala

Reg. 33851

Patent attorney

Silver Spring, MD · 20906

301-641-3754

Brian A Coblitz

Reg. 69015

Patent agent

Silver Spring, MD · 20910

443-622-2710

Curtis A Cohen

Reg. 52462

Patent agent

Havre de Grace, MD · 21078

Herbert Cohen

Reg. 25109

Patent attorney

Rockville, MD · 20851

301-493-9325

Lee S. Cohen

Reg. 79944

Patent attorney

North Potomac, MD · 20878

301-948-7261

Spencer C Coleman

Reg. 80786

Patent agent

Chevy Chase, MD · 20815

281-217-9001

Melat A. Collins

Reg. 83571

Patent attorney

U.S. Food and Drug Administration

Silver Spring, MD · 20903

240-535-6749

Eric Brett Compton

Reg. 54806

Patent attorney

U.S. Army Research Laboratory

Adelphi, MD · 20783

301-394-1714

Joseph M Conrad· III

Reg. 41481

Patent agent

National Cancer Institute, NIH

Rockville, MD · 20852

301-435-3107

Darrell Francis Cook

Reg. 52766

Patent attorney

FedData Technology Solutions, LLC

Annapolis Junction, MD · 20701

443-600-5542

George Madison Cooper

Reg. 20201

Patent attorney

Jones Tullar and Cooper PC

Mitchellville, MD · 20721

301-390-6292

Jack Cooper

Reg. 38772

Patent agent

Silver Spring, MD · 20902

301-593-3777

W. Michael Cooper

Reg. 55929

Patent attorney

Hollywood, MD · 20636

301-373-8877

Donald W Copertino

Reg. 45471

Patent attorney

Becton Dickinson and Company

Sparks, MD · 21152

410-316-4519

Arthur L Corbin

Reg. 64055

Patent agent

Silver Spring, MD · 20905

301-384-2216

John K Corbin

Reg. 33314

Patent agent

Rockville, MD · 20852

Robert J Corcoran

Reg. 52511

Patent agent

Silver Spring, MD · 20906

301-460-0474

Shari J Corin

Reg. 46243

Patent attorney

University of Maryland, Baltimore

Baltimore, MD · 21201

410-706-6278

John N Costello· Jr.

Reg. 62822

Patent attorney

Laureate Education, Inc.

Baltimore, MD · 21202

443-627-7398

Ronald B Cox

Reg. 33076

Patent attorney

Tracys Landing, MD · 20779

703-490-3000

Paul Max Craig· Jr

Reg. 16823

Patent attorney

Sillver Spring, MD · 20904

301-622-3980

Royal W Craig

Reg. 34145

Patent attorney

Ober, Kaler, Grimes & Shriver

Baltimore, MD · 21202

410-347-7303

Aida E. Cremesti

Reg. 72680

Patent agent

9609 Medical Center Drive

Bethesda, MD · 20892-9702

646-334-1478

Robert G Crockett

Reg. 42448

Patent attorney

SVPLG

Rockville, MD · 20850

571-278-8695

Hans J Crosby

Reg. 44634

Patent attorney

Classic Counsel, P.C.

Annapolis, MD · 21401

240-744-4614

David W Crosland

Reg. 66758

Patent attorney

Edell, Shapiro & Finnan LLC

Gaithersburg, MD · 20878

240-864-2444

Charles A Cross

Reg. 32406

Patent attorney

W R Grace and CO - Conn

Columbia, MD · 22044

410-531-4518

Michael J. Cross

Reg. 81015

Patent attorney

Frederick, MD · 21703

518-424-2485

Gregory F Cunningham

Reg. 78382

Patent agent

Nottingham, MD · 21236

703-282-0416

Carmela M. D'Antuono

Reg. 84207

Patent agent

Ellicott City, MD · 21042

410-818-0180

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.