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, AstraZeneca, and Oliver & Grimsley, LLC.

Top cities in Maryland

All practitioners in Maryland

Howard Ross Richman

Reg. 41451

Patent attorney

Edell, Shapiro & Finnan

Gaithersburg, MD · 20878

301-424-3640

Meaghan L Richmond

Reg. 61402

Patent attorney

AstraZeneca

Gaithersburg, MD · 20878

781-771-8103

Pamela Kayatta Riewerts

Reg. 69702

Patent attorney

Oliver & Grimsley, LLC

Towson, MD · 21204

443-541-5680

Yesenia Rivera

Reg. 71015

Patent agent

Capitol Heights, MD · 20743

240-565-7416

Andrew S Roberts

Reg. 44463

Patent attorney

Gaithersburg, MD · 20878

301-613-9693

Elbert Lee Roberts

Reg. 32347

Patent agent

Roberts and Associates Patent Services

Silver Spring, MD · 20904

301-384-3255

Roy Roberts

Reg. 54402

Patent attorney

Naval Medical Research Center

Silver Spring, MD · 20910-7500

301-319-7503

Douglas Wayne Robinson

Reg. 51278

Patent attorney

Kensington, MD · 20895

301-949-6622

Ellis P Robinson

Reg. 48083

Patent agent

Columbia, MD · 21044

410-952-7161

Benjamin Ynares Roca

Reg. 50166

Patent attorney

The Johns Hopkins Univ

Laurel, MD · 20723

240-228-5641

Robert J. Rocchio

Reg. 83855

Patent agent

U.S. Food & Drug Administration

Silver Spring, MD · 20993

240-402-1540

Joan S Rodriguez

Reg. 37707

Patent attorney

Rockville, MD · 20850

301-975-9641

John P Rodriguez

Reg. 66670

Patent attorney

Silverspring, MD · 20906

610-704-6543

Richard Ubaldo Rodriguez

Reg. 45980

Patent agent

Office of Technology Transfer/NIH/DHHS

Rockville, MD · 20852

301-435-4013

Martin K Rogers

Reg. 77753

Patent agent

U.S. Navy

Indian Head, MD · 20640-5092

561-914-1843

Mark Lewis Rohrbaugh

Reg. 43055

Patent attorney

National Institutes of Health

Bethesda, MD · 20892

301-435-4485

John Wesley Rollins

Reg. 56033

Patent agent

Accokeek, MD · 20607

301-283-0115

Ramon L Roman

Reg. 77136

Patent attorney

Colmar Manor, MD · 20722

301-277-1380

William Charles Ronnenberg· Jr

Reg. 48693

Patent attorney

U.S. Food and Drug Administration

Silver Spring, MD · 20993

240-402-4561

Kenneth J Rose

Reg. 39821

Patent attorney

National Cancer Institute, NIH

Bethesda, MD · 20850

240-276-5509

Sam Rosen

Reg. 37991

Patent attorney

Baltimore, MD · 21215

410-358-0877

Morton Jacob Rosenberg

Reg. 26049

Patent attorney

Rosenberg Klein & Lee

Ellicott City, MD · 21043

410-465-6678

Arnold Rosenthal

Reg. 38781

Patent agent

Bethesda, MD · 20817

301-229-2411

Jeffrey Allen Rossi

Reg. 52434

Patent agent

Food & Drug Administration

Rockville, MD · 20850

301-594-1307

Carl A Roth

Reg. 40405

Patent attorney

National Heart, Lung and Blood Institute

Bethesda, MD · 20892

301-496-6331

Jacob M Rothenberg

Reg. 77891

Patent attorney

Kensington, MD · 20895

315-882-3757

Pinchus Rubelow

Reg. 83556

Patent agent

Baltimore, MD · 21209

443-472-9498

Susan S Rucker

Reg. 35762

Patent attorney

Natl Inst Of Health

Bethesda, MD · 20892-9702

240-276-6727

Christopher S Ruprecht

Reg. 69448

Patent attorney

PV IP, PC

Bethesda, MD · 20817

816-591-2442

Norman Rushefsky

Reg. 25606

Patent attorney

Silver Spring, MD · 20910

301-495-0784

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.