Washington

Patent attorneys in Washington

Washington hosts 1,434 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 Kilpatrick Townsend & Stockton LLP, Seagen Inc., and Amazon.com.

Top cities in Washington

All practitioners in Washington

Gary N Mager

Reg. 40711

Patent attorney

Seattle, WA · 98115

206-409-5518

Angie S Y Mah

Reg. 64902

Patent attorney

Seagen Inc.

Bothell, WA · 98021

425-527-2196

William J Maheras

Reg. 54873

Patent attorney

Racine, WA · 53402

262-412-0566

Timothy D. Mainzer

Reg. 66329

Patent attorney

Amazon.com

Seattle, WA · 98109

206-740-4780

Farjam Majd

Reg. 64032

Patent attorney

Arjomand Law Group, PLLC

Issaquah, WA · 98027

425-999-9475

Nathan R Maki

Reg. 51110

Patent attorney

Kilpatrick Townsend & Stockton LLP

Seattle, WA · 98101

206-626-7784

Stephen L Malaska

Reg. 32655

Patent attorney

Strategic Law & Management Group, PLLC

Snoqualmie, WA · 98005

425-941-2072

Deepak Malhotra

Reg. 33560

Patent attorney

Malhotra Law Firm, PLLC

Spokane, WA · 99201

509-252-1496

Anna L. Mallam

Reg. 78478

Patent agent

Seed Intellectual Property Law Group LLP

Seattle, WA · 98104

206-622-4900

Janina A Malone

Reg. 47768

Patent attorney

Lee & Hayes, PLLC

Seattle, WA · 98101

206-876-6027

H Scott Malvich· Jr

Reg. 77819

Patent agent

Lee & Hayes

Seattle, WA · 98101

248-933-9272

Philip P Mann

Reg. 30960

Patent attorney

Mann Law Group PLLC

Bainbridge Island, WA · 98110

206-436-0900

Jessica M Mantchev

Reg. 81088

Patent agent

Mercer Island, WA · 98040

425-635-8338

Katrina M. Marcelo

Reg. 79233

Patent agent

Edmonds, WA · 98026

714-943-4151

Gustavo Marin

Reg. 73270

Patent agent

Marin Patents, LLC

Point Roberts, WA · 98281

360-207-0270

Matthew D Marler

Reg. 59317

Patent agent

Speidel Law Firm

Wenatchee, WA · 98801

503-662-1211

Jeffrey S. Marlink

Reg. 70993

Patent attorney

Kilpatrick Townsend & Stockton LLP

Seattle, WA · 98101

206-224-2852

Thomas R Marquis

Reg. 46900

Patent attorney

Microsoft

Redmond, WA · 98052

425-704-8572

Christopher J. Marth

Reg. 74335

Patent attorney

Perkins Coie LLP

Seattle, WA · 98101

206-359-8657

Richard Charles Martin

Reg. 46220

Patent attorney

Tacoma, WA · 98467

253-474-5555

Jennifer L Marvin

Reg. 48896

Patent agent

The Boeing Company

Seattle, WA · 98124

425-422-3230

James D Matheson

Reg. 54569

Patent agent

Battelle Memorial Inst

Richland, WA · 99352

509-375-3782

Mark Stephen Matkin

Reg. 32268

Patent attorney

Wells St. John, P.S.

Spokane, WA · 99201

509-624-4276

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

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?

1,434 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.