Virginia

Patent attorneys in Virginia

Virginia hosts 2,710 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 Oblon, McClelland, Maier & Neustadt, L.L.P., Hunton Andrews Kurth, and Calderon Safran & Wright P.C..

Top cities in Virginia

All practitioners in Virginia

Adaku I Nwachukwu

Reg. 60307

Patent attorney

Ashburn, VA · 20148

301-775-7870

Paul T Nyffeler

Reg. 58377

Patent attorney

Hunton Andrews Kurth

Richmond, VA · 23219

804-788-8182

Kevin F O'Brien

Reg. 29334

Patent agent

Annandale, VA · 22003

703-856-4011

Michael J. O'Brien

Reg. 59582

Patent attorney

Calderon Safran & Wright P.C.

McLean, VA · 22102

703-584-3270

Michelle E O'Brien

Reg. 46203

Patent attorney

The Marbury Law Group, PLLC

Reston, VA · 20191

571-267-7509

Regan C O'Brien

Reg. 73972

Patent agent

DeMarco IP LLC

Arlington, VA · 22202

203-731-7328

Caitlin E. O'Connell

Reg. 73934

Patent attorney

Aldie, VA · 20105

703-357-7984

Rachel E. O'Connell

Reg. 83169

Patent agent

Antheros Legal Advisors

Fairfax, VA · 22030

703-732-8757

Thomas J O'Connell

Reg. 33202

Patent attorney

Moneta, VA · 24121

540-719-2466

Steven P O'Connor

Reg. 41225

Patent attorney

Reston, VA · 20194

202-251-0870

Scott C. O'Dowd

Reg. 70920

Patent attorney

Alexandria, VA · 22304

503-313-4767

William G O'Hara

Reg. 68917

Patent agent

Alexandria, VA · 22314

443-852-4579

Patrick Owen O'Leary

Reg. 51035

Patent attorney

Office of the Attorney General of Virginia

Richmond, VA · 23219

804-786-7372

Abby E. O'Neill

Reg. 81834

Patent agent

Charlottesville, VA · 22903

570-780-5257

David J O'Neill

Reg. 42953

Patent agent

Verizon

Arlington, VA · 22201

703-351-3580

Ryan P O'Quinn

Reg. 67191

Patent attorney

Finnegan , Henderson, Farabow, Garret &

Reston, VA · 20190

571-203-2426

Sandra L. O'Shea

Reg. 67941

Patent agent

Springfield, VA · 22150

703-624-1693

James P O'Sullivan· Sr

Reg. 20260

Patent attorney

Leesburg, VA · 20176

703-729-5105

Norman F Oblon

Reg. 24618

Patent attorney

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

Alexandria, VA · 22314

703-413-3000

Christine K Oda

Reg. 48217

Patent agent

Alexandria, VA · 22304

703-960-0856

Kaushal R Odedra

Reg. 42046

Patent attorney

Gainesville, VA · 20155

571-248-8854

Fumika Ogawa

Reg. 83305

Patent attorney

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

Alexandria, VA · 22314

703-412-6382

Simon J. Oh

Reg. 67820

Patent agent

Kile Park Reed & Houtteman PLLC

Fairfax, VA · 22030

202-659-8000

Naoko Ohashi

Reg. 66999

Patent attorney

Greenblum & Bernstein, P.L.C.

Reston, VA · 20191

703-716-1191

Christopher E. Ohslund

Reg. 74285

Patent attorney

Maier & Maier PLLC

Alexandria, VA · 22314

703-740-8322

Mark Edward Olds

Reg. 46507

Patent attorney

Muncy, Geissler, Olds & Lowe, PLLC

Alexandria, VA · 22314

703-621-7140

James A Oliff

Reg. 27075

Patent attorney

Oliff & Berridge, PLC

Alexandria, VA · 22314

703-836-6400

Andrew M Ollis

Reg. 40749

Patent attorney

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

Alexandria, VA · 22314

703-413-3000

James M. Olsen

Reg. 40408

Patent attorney

Harrity & Harrity, LLP

Fairfax, VA · 22030

571-432-0800

Susan E Olson

Reg. 42961

Patent attorney

Mount Jackson, VA · 22842

540-477-2443

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?

2,710 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.