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 Microsoft Corporation, Davis Wright Tremaine LLP, and 47Hops LLC.

Top cities in Washington

All practitioners in Washington

Steven A. Wolfe

Reg. 75208

Patent attorney

47Hops LLC

Yakima, WA · 98903

855-201-2002

Dawn C Wolff

Reg. 48695

Patent attorney

Philips Electronics North America Corp

Bothell, WA · 98011

425-318-2478

Betty K Wong

Reg. 78917

Patent agent

Perkins Coie

Seattle, WA · 98101

206-359-8696

Carmen G Wong

Reg. 68299

Patent agent

Renton, WA · 98056

206-412-3668

Craig P Wong

Reg. 45231

Patent attorney

NeuroVista Corporation

Seattle, WA · 98109

206-267-3707

Ellen T. Wong

Reg. 71575

Patent attorney

Microsoft Corporation

Redmond, WA · 98052

425-705-8372X58372

Thomas S Wong

Reg. 48577

Patent attorney

Microsoft Corporation

Redmond, WA · 98052

425-707-3591

Judith A Woods

Reg. 33136

Patent attorney

Kirkland, WA · 98034

425-821-5338

Kenneth J Woolcott

Reg. 30984

Patent attorney

Seattle, WA · 98121

206-795-4667

Robert G Woolston

Reg. 37263

Patent attorney

Perkins Coie, LLP

Seattle, WA · 98101

206-359-3259

Lillian Woung

Reg. 57997

Patent attorney

Seattle, WA · 98119

415-230-9296

Grzegorz M. Wroblewski

Reg. 84539

Patent agent

Cascade Patents LLC

Bellevue, WA · 98008

425-954-3485

Di Wu

Reg. 78693

Patent agent

Sammamish, WA · 98029

858-790-9606

Tan Mau Wu

Reg. 65061

Patent agent

Impinj Inc.

Seattle, WA · 98109

206-812-9723

Willa Q. Wu

Reg. 82602

Patent attorney

Ashurst Perkins Coie LLP

Seattle, WA · 98101-3099

206-359-6110

Donald W Wyatt

Reg. 40879

Patent attorney

Lynnwood, WA · 98036

425-516-7491

Timothy R Wyckoff

Reg. 46175

Patent attorney

Davis Wright Tremaine LLP

Seattle, WA · 98104

206-240-8600

R Lynette Wylie

Reg. 34951

Patent attorney

Apex Juris, PLLC

Seattle, WA · 98125

206-664-0314

Roger D Wylie

Reg. 36974

Patent attorney

Kilpatrick Townsend & Stockton, LLP

Seattle, WA · 98101

206-516-3092

Joy Y Xiang

Reg. 55747

Patent attorney

Joy Y. Xiang

Seattle, WA · 98105

206-880-0924

Dacheng Xie

Reg. 67267

Patent agent

Lee & Haynes PC

Spokane, WA · 99201

224-659-2453

Han Xue

Reg. 84173

Patent attorney

Seattle, WA · 98104

541-805-1825

Samuel I. Yamron

Reg. 59411

Patent attorney

Davis Wright Tremaine LLP

Seattle, WA · 98104

412-848-8066

Edward Yang

Reg. 77239

Patent attorney

Microsoft Corp

Redmond, WA · 98052

425-882-8080

Sen Yao

Reg. L0790

Limited recognition

Lee & Hayes, PLLC

Spokane, WA · 99201

206-876-6020

Kyle E. Yarberry

Reg. 70157

Patent attorney

IPkey PLLC

Bainbridge Island, WA · 98110

206-854-7562

Loria B Yeadon

Reg. 35063

Patent attorney

Yeadon IP LLC

Mercer Island, WA · 98040

425-449-0031

Gene H Yee

Reg. 57471

Patent attorney

Fenwick & West LLP

Seattle, WA · 98101

206-389-4535

Eva F Yin

Reg. 74922

Patent attorney

Wilson Sonsini Goodrich & Rosati

Seattle, WA · 98104

206-883-2572

Ying Y. Yiu

Reg. 81920

Patent agent

Cooley LLP

Seattle, WA · 98101

206-452-8825

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.