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 Pacific Intellectual Property PLLC, University of Washington School of Law, and Dowrey & Associates.

Top cities in Washington

All practitioners in Washington

Anthony J. Dorsett

Reg. 78301

Patent attorney

Pacific Intellectual Property PLLC

Zillah, WA · 98953

509-713-2578

Jonathan Todd Dorsey

Reg. 902968

Limited recognition

University of Washington School of Law

Seattle, WA · 98195-3020

310-903-8516

Carl G Dowrey

Reg. 20067

Patent attorney

Dowrey & Associates

Bothell, WA · 98011

425-577-2655

Katherine J Drakos

Reg. 48559

Patent attorney

Microsoft Corporation

Redmond, WA · 98052-6399

425-421-6953

Michael A Dryja

Reg. 39662

Patent attorney

Law Office of Michael Dryja

Seattle, WA · 98109

206-290-4079

Benedict R Dugan

Reg. 65955

Patent attorney

Black Lowe and Graham

Seattle, WA · 98104

206-381-3300

Jeremy M Dukmen

Reg. 64884

Patent attorney

Cozen O'Connor

Seattle, WA · 98104-4040

206-340-1000

Sarah C Dukmen

Reg. 64899

Patent attorney

Amazon Doppler

Seattle, WA · 98121

610-996-1718

Jacques M Dulin

Reg. 24067

Patent attorney

Innovation Law Group, LTD.

Sequim, WA · 98382-3456

360-681-7305

Bryce Anthony Dumais

Reg. 78190

Patent attorney

FIG. 1 Patents

Spokane, WA · 99201

509-638-7685

Nicole Sporer Dunham

Reg. 66122

Patent attorney

Perkins Coie, LLP

Seattle, WA · 98101

206-359-3042

Nathaniel E Durrance

Reg. 47542

Patent attorney

Newman Du Wors Durrance LLP

Seattle, WA · 98121

206-274-2800

Marianne E. Dutton

Reg. 66813

Patent attorney

Seattle, WA · 98102

510-384-4006

Patrick Michael Dwyer

Reg. 32411

Patent attorney

Patrick M Dwyer

Bothell, WA · 98011

206-550-4049

Matthew G Dyor

Reg. 45278

Patent attorney

Inventose.com

Bellevue, WA · 98008

425-503-3871

Richard Mathew Edge

Reg. 56791

Patent attorney

Schweitzer Engineering Laboratories, Inc.

Pullman, WA · 99163

509-334-8732

Chandra E Eidt

Reg. 57895

Patent attorney

Sound IP Law PLLC

Seattle, WA · 98199

206-437-5626

Antoine El Daher

Reg. 73045

Patent agent

Kenmore, WA · 98028

650-776-4436

Emily A. Elder

Reg. 81438

Patent attorney

Wilson Sonsini Goodrich & Rosati

Seattle, WA · 98104

206-883-2551

Joseph Z Ellsworth

Reg. 66844

Patent attorney

Kent, WA · 98030

253-854-5121

Dennis Allen Emma

Reg. 50980

Patent attorney

Metagenics Corporation

Gig Harbor, WA · 98332

253-853-7267

Eita Emori

Reg. L0597

Limited recognition

Soei Hybrid IP P.S.

Seattle, WA · 98121

206-954-5428

Thomas Joseph Endres

Reg. 74577

Patent agent

Wolfe-SBMC

Spokane, WA · 99201-3622

509-321-5269

Andrew D. Enfield

Reg. 57651

Patent agent

Seattle, WA · 98103

206-306-3904

David L Enfield

Reg. 51017

Patent agent

Seed Intellectual Property Law Group PLLC

Seattle, WA · 98104-7092

206-622-4900

Kimton N Eng

Reg. 43605

Patent attorney

Dorsey & Whitney, LLP

Seattle, WA · 98104-7043

206-903-8800

Leslie K. English

Reg. 76881

Patent attorney

The Law Offices of Leslie K. English, PLLC

Seattle, WA · 98102

206-552-8321

D Bartley Eppenauer

Reg. 35499

Patent attorney

Shook Hardy & Bacon LLP

Seattle, WA · 98104

206-334-7600

Elizabeth J. Eschbach

Reg. 48475

Patent agent

Elizabeth J Eschbabch

Richland, WA · 99354

425-985-0795

Andrew John Estrada

Reg. 51657

Patent agent

Bellingham, WA · 98229-5361

360-362-9305

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.