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 Natl Inst Of Mental Health, USDA-ARS-OTT, and United States Department of Commerce.

Top cities in Maryland

All practitioners in Maryland

Suzanne L Winfield

Reg. 48039

Patent agent

Natl Inst Of Mental Health

Rockville, MD · 20852

301-402-4324

William M. Wittwer

Reg. 59410

Patent agent

USDA-ARS-OTT

Beltsville, MD · 20705

301-504-4779

Henry N Wixon

Reg. 32073

Patent attorney

United States Department of Commerce

Gaithersburg, MD · 20899

301-975-2803

Heather M Wolf

Reg. 80504

Patent attorney

Rockville, MD · 20850

269-548-7909

Nathan J Wolf

Reg. 39075

Patent attorney

Pikesville, MD · 21208-6547

202-390-0869

Theodore M Wolf

Reg. 63888

Patent agent

Oakland, MD · 21550

301-334-3174

John H Wolff

Reg. 46400

Patent attorney

Potomac, MD · 20854

301-983-0007

King Lit Wong

Reg. 37500

Patent attorney

U.S. Food and Drug Administration

Silver Spring, MD · 20993

301-796-6878

Jay H Woo

Reg. 45329

Patent agent

Potomac, MD · 20854

301-983-2149

David R Wood

Reg. 53868

Patent agent

Odenton, MD · 21113

443-831-8737

Theodore Adolphus Wood

Reg. 52374

Patent attorney

Wood IP LLC

Gaithersburg, MD · 20878

240-801-9717

William C Wood

Reg. 53792

Patent attorney

Ellicott City, MD · 21042

410-461-7891

Derek L Woods

Reg. 57424

Patent attorney

Adelphi, MD · 20783

301-595-3807

Willie M Worth

Reg. 51270

Patent agent

Upper Marlboro, MD · 20772

301-952-6448

Christopher P Wrist

Reg. 32078

Patent attorney

Plumsea Law Group

Bethesda, MD · 20817

240-752-9973

Jianqing Wu

Reg. 48047

Patent attorney

Hyattsville, MD · 20783

202-560-3000

Jingge Wu

Reg. 80207

Patent agent

Derwood, MD · 20855

301-272-7896

Ling Wu

Reg. 66304

Patent agent

Potomac, MD · 20854

301-525-2842

Jingbo Xiao

Reg. 70214

Patent agent

Rockville, MD · 20850

412-225-4531

Yingxin Xiao

Reg. 60743

Patent agent

Gaithersburg, MD · 20878

301-637-6591

Alexander V Yampolsky

Reg. 36324

Patent agent

Rockville, MD · 20852

301-651-9128

Duen-Hwa Yan

Reg. 66801

Patent agent

McBee Moore Woodward & Vanik IP, LLC

Frederick, MD · 21701

301-453-6107

Elisa H. Yang

Reg. 83135

Patent agent

Severn, MD · 21144

443-632-6740

Grant Chieh-Hsiang Yang

Reg. 52380

Patent attorney

Rockville, MD · 20854

301-762-2278

Hong-Woon Yang

Reg. 72416

Patent agent

Potomac, MD · 20854

301-424-3205

Minchul Yang

Reg. 74069

Patent attorney

STIP Law Group, LLC

Columbia, MD · 21045

410-872-1123

Ning Yang

Reg. 55750

Patent attorney

Naval Medical Research Center

Silver Spring, MD · 20910

301-319-9433

Po Lung Yang

Reg. 70514

Patent agent

Technology Transfer and Intellectual Property Office

Rockville, MD · 20892-9804

240-627-3413

Stephen Y. Yang

Reg. 67269

Patent agent

Potomac, MD · 20854

301-529-8169

Amelia B Yarbrough

Reg. 38738

Patent agent

Fort Washington, MD · 20744

301-275-5134

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.