Virginia

Patent attorneys in Virginia

Virginia hosts 2,705 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 Virginia. 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 Morrison & Foerster LLP, Oliff & Berridge, PLC, and Patentseq, LLC.

Top cities in Virginia

All practitioners in Virginia

Richard A. Castellano

Reg. 61961

Patent agent

Oliff & Berridge, PLC

Alexandria, VA · 22314

703-836-6400

Christine V Castillo

Reg. 51085

Patent agent

Patentseq, LLC

Falls Church, VA · 22042

703-289-9741

Stephen P Catlin

Reg. 36101

Patent attorney

Robinson Intellectual Property Law Office

Fairfax, VA · 22033

571-434-6789

Kathleen Anne Cavanagh

Reg. 59911

Patent attorney

NewMarket Corporation

Richmond, VA · 23219

804-543-1180

Thomas A Cawley· Jr

Reg. 40944

Patent attorney

Potomac Law Group, PLLC

Tysons, VA · 22182-2651

703-468-0807

Kenan Cehic

Reg. 68396

Patent agent

Alexandria, VA · 22311

410-908-6598

Matthew J. Celsa

Reg. 84403

Patent agent

Sterling, VA · 20165

703-501-4235

Mary E. Ceperley

Reg. 60324

Patent agent

Fairfax, VA · 22031-2748

703-280-8216

Daniel L Cerioni

Reg. 65242

Patent agent

Alexandria, VA · 22314

703-836-6400

Shelly Guest Cermak

Reg. 39571

Patent attorney

Alexandria, VA · 22314

703-405-1551

Min S. Cha

Reg. 70425

Patent agent

McLean, VA · 22102

617-717-9140

Andrew R Chadeayne

Reg. 60548

Patent agent

Arlington, VA · 22201

617-429-4917

James Scott Chafin

Reg. 45679

Patent attorney

Dept. of the Army

Arlington, VA · 22203-1837

703-696-8119

Pabitra K Chakrabarti

Reg. 73690

Patent attorney

Fairfax, VA · 22033

518-357-7486

Eddie P Chan

Reg. 71093

Patent agent

Vienna, VA · 22181

703-255-2373

Alex C Chang

Reg. 52716

Patent attorney

Harness, Dickey & Pierce, P.L.C.

Reston, VA · 20190

703-668-8059

Hojin Chang

Reg. 62513

Patent attorney

McLean, VA · 22101

703-442-0145

Jacob K Chang

Reg. 62608

Patent agent

Oakton, VA · 22124

703-938-1417

Jon C Chang

Reg. 83714

Patent agent

Annandale, VA · 22003

703-425-1890

Kenneth W Chang

Reg. 59794

Patent attorney

Great Falls, VA · 22066

555-123-3333

Steven B Chang

Reg. 59423

Patent attorney

Oblon, McClelland, Maier & Neustadt, L.L.P.

Alexandria, VA · 22314

703-412-6228

Willis H Chang

Reg. 73360

Patent agent

Morrison & Foerster LLP

Fairfax, VA · 22102

703-760-7344

Aborn C Chao

Reg. 66538

Patent agent

Squire Patton Boggs (US) L.L.P.

Vienna, VA · 22182

Linda Chao

Reg. 47483

Patent agent

Falls Church, VA · 22046

408-836-0438

Adam H Chapin

Reg. 66712

Patent agent

Nixon & Vanderhye PC

Arlington, VA · 22203

703-816-4000

Ernest F Chapman

Reg. 25961

Patent attorney

Gainesville, VA · 20155

703-743-5742

John E Chapman· Jr.

Reg. 78842

Patent agent

McLean, VA · 22101

571-205-2556

Kathleen Chapman

Reg. 46094

Patent attorney

MH2 Technology Law Group LLP

Tysons Corner, VA · 22182

703-917-0000

Alex Chartove

Reg. 31942

Patent attorney

Morrison & Foerster LLP

McLean, VA · 22102

703-760-7744

Kimberly A Chasteen

Reg. 36755

Patent attorney

LMK Associates

Yorktown, VA · 23692

804-359-2974

Common questions

Do I need a patent attorney based in Virginia?

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 Virginia-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 Virginia?

2,705 active USPTO-registered patent practitioners list a Virginia 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.