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 TRSG, Inc., Johns Hopkins Technology Ventures, and Law Office of Michael A. Sanzo, LLC.

Top cities in Maryland

All practitioners in Maryland

William G Saba

Reg. 41468

Patent agent

Bowie, MD · 20715

301-776-6615

Ashutosh Sahu

Reg. 66029

Patent attorney

North Potomac, MD · 20878

530-574-6269

Azadeh Saidi

Reg. 68473

Patent agent

Silver Spring, MD · 20906

703-756-0262

Charles B Sajonia

Reg. 39017

Patent attorney

TRSG, Inc.

Columbia, MD · 21045

301-467-1498

Sara R. Salhanick

Reg. 64316

Patent agent

Baltimore, MD · 21209

646-413-1806

Louisa T. Salomon

Reg. 63215

Patent attorney

Johns Hopkins Technology Ventures

Baltimore, MD · 21205

571-271-7116

Ronald F Sandler

Reg. 25021

Patent attorney

Hanover, MD · 21076

410-694-9442

Michael A Sanzo

Reg. 36912

Patent attorney

Law Office of Michael A. Sanzo, LLC

Rockville, MD · 20855

(24-0)6-83-6165

Shannon Colleen O'Barr Sausville

Reg. 56729

Patent attorney

Edgewater, MD · 21037

Matthew O Savage

Reg. 80704

Patent agent

Boyds, MD · 20841-4132

301-250-3148

Nicholas W. Scala

Reg. 69387

Patent attorney

Law Office of Adele L. Abrams, P.C.

Beltsville, MD · 20705

301-595-3520

Laurie A. Scheiner

Reg. 58056

Patent agent

Derwood, MD · 20855

301-963-4340

Malka Scher

Reg. 51064

Patent attorney

Natl Institutes Of Health

Bethesda, MD · 20892

302-496-0477

David A. Scherbel

Reg. 61821

Patent agent

Bethesda, MD · 20817

301-229-0525

Charles Frederick Schill

Reg. 27590

Patent attorney

Bethesda, MD · 20817

301-469-4973

Linda G Schilling

Reg. 53560

Patent agent

National Institute of Health, National Cancer Institute

Rockville, MD · 20852

301-435-3119

Jonathan D Schlaifer

Reg. 61719

Patent attorney

Self-Employed

Rockville, MD · 20852

301-529-4230

Brian C. Schmitt

Reg. 62542

Patent attorney

Bruce A. Hake, P.C.

New Windsor, MD · 21776

410-635-3337

Johanna S. Schneider

Reg. 67608

Patent agent

Clarksburg, MD · 20871

434-825-3071

Joseph L Schofer

Reg. 43408

Patent agent

Silver Spring, MD · 20906

301-598-3614

Kerri Pollard Schray

Reg. 47066

Patent attorney

AstraZeneca Pharmaceuticals LP

Gaithersburg, MD · 20878

240-997-0698

Lisa M. Schreihart

Reg. 80016

Patent attorney

Lisa M. Schreihart, Esq.

Takoma Park, MD · 20912

202-878-2056

William C Schrot

Reg. 48447

Patent attorney

Office of Genera l Counsel , Defense Health Agency

Fort Detrick, MD · 21702

301-619-7295

Joseph James Schuller

Reg. 48708

Patent attorney

GlaxoSmithKline

Rockville, MD · 20850

202-617-7187

Kofi A Schulterbrandt

Reg. 50168

Patent attorney

Black & Decker Corporation

Towson, MD · 21286

410-716-2881

William Harrison Schultz

Reg. 31729

Patent agent

Bethesda, MD · 20816

301-656-7334

Brooke Schumm· III

Reg. 34926

Patent attorney

Levin Gann, P.A.

Towson, MD · 21204

410-321-4653

Arthur Schwartz

Reg. 22115

Patent attorney

Annapolis, MD · 21403

410-263-8999

Lisa F. Schwier

Reg. 67222

Patent attorney

Odenton, MD · 21113

864-350-4597

Steven J Scott

Reg. 43911

Patent attorney

Sonapat LLC

Rockville, MD · 20850

301-339-1000

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.