Washington

Patent attorneys in Washington

Washington hosts 1,446 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 Washington. 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 Perkins Coie LLP, FIG. 1 Patents, PLLC, and K&L Gates LLP.

Top cities in Washington

All practitioners in Washington

Hugh H Matsubayashi

Reg. 43779

Patent attorney

K&L Gates LLP

Seattle, WA · 98104

206-370-7816

Elana S Matt

Reg. 51355

Patent attorney

Philips

Bothell, WA · 98021

206-962-1070

Christie R. W. Matthaei

Reg. 62933

Patent attorney

Morgan, Lewis & Bockius LLP

Seattle, WA · 98101

206-274-6400

Gregory T. Mattox· Jr.

Reg. 76393

Patent attorney

Bellevue, WA · 98008

425-703-3323

Oscar J. Matus

Reg. 79310

Patent agent

Ephrata, WA · 98823

509-398-0657

Derek H Maughan

Reg. 52007

Patent attorney

Battelle Memorial Institute

Richland, WA · 99352

509-375-2981

Stephen R May

Reg. 29255

Patent attorney

Olympia, WA · 98516

360-628-9009

Tyler T McAllister

Reg. 69943

Patent attorney

Kilpatrick Townsend & Stockton

Seattle, WA · 98101

206-224-2865

Ryan J McBrayer

Reg. 54299

Patent attorney

Perkins Coie LLP

Seattle, WA · 98101

206-359-8000

Gregory A McBroom

Reg. 53290

Patent attorney

Foster Pepper & Shefelman PLLC

Seattle, WA · 98101-3299

206-447-7290

Kevin B McClure

Reg. 71387

Patent agent

McClure Intellectual Property Law, PLLC

Spokane Valley, WA · 99016

509-800-7244

Lawrence J McClure

Reg. 44228

Patent attorney

VANCOUVER, WA · 98664

323-839-3644

Mark C McClure

Reg. 53857

Patent attorney

Law Office of Mark McClure, P.S.

Kent, WA · 98032

253-631-6484

Tessa McClure

Reg. 75668

Patent agent

Seed IP Law Group LLP

Seattle, WA · 98104

206-622-4900

Christina J McCullough

Reg. 58720

Patent agent

Perkins Coie LLP

Seattle, WA · 98101-3099

206-359-8000

Connor L McCune

Reg. 69726

Patent attorney

c/o Davis Wright Tremaine LLP

Seattle, WA · 98101

206-757-8195

John P McDonagh

Reg. 75078

Patent attorney

FIG. 1 Patents, PLLC

Spokane, WA · 99201-3669

509-755-7246

Jonathan L. McFarland

Reg. 61109

Patent attorney

Perkins Cole LLP

Seattle, WA · 98101

206-359-3132

Robert O McGinnis

Reg. 44232

Patent agent

Normandy Park, WA · 98166

206-607-7398

Jack P. McGinnity

Reg. 79137

Patent attorney

FIG. 1 Patents, PLLC

Spokane, WA · 99201

509-755-7269

Hillary A McGonegle

Reg. 59738

Patent attorney

Enumclaw, WA · 98022

206-595-5269

Robert C McIver

Reg. 68860

Patent attorney

McIver IP, PLLC

Spokane, WA · 99201

360-561-8801

Douglas E McKinley· Jr

Reg. 40280

Patent attorney

Law Office of Douglas E. McKinley, Jr.

Richland, WA · 99352

509-628-0809

Connor A McKittrick

Reg. 77270

Patent agent

Seattle, WA · 98112

206-550-7403

Michelle N McLeod

Reg. 63282

Patent attorney

Amazon

Seattle, WA · 98121

206-266-0417

Mark T McMaster

Reg. 62078

Patent attorney

Kilpatrick Townsend & Stockton LLP

Seattle, WA · 98101

206-224-2961

David D McMasters

Reg. 33963

Patent attorney

Kurious LLC

North Bend, WA · 98045

206-789-2511

Jonathan T McMichael

Reg. 70019

Patent attorney

Fenwick & West LLP

Seattle, WA · 98101

206-389-4510

Antoine M McNamara

Reg. 75153

Patent attorney

Perkins Coie LLP

Seattle, WA · 98101

206-359-3864

Brian P McQuillen

Reg. 41989

Patent attorney

Seed Intellectual Property Law Group LLP

Seattle, WA · 98104

206-622-4900

Common questions

Do I need a patent attorney based in Washington?

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 Washington-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 Washington?

1,446 active USPTO-registered patent practitioners list a Washington 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.