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 Whatcon County Public Defender, Dorsey & Whitney LLP, and Lowe Graham Jones.

Top cities in Washington

All practitioners in Washington

Michael C. Johnson

Reg. 67807

Patent attorney

Renton, WA · 98058

425-235-8906

Amy L Jones

Reg. 64523

Patent attorney

Whatcon County Public Defender

Bellingham, WA · 98255

Anthony J. Jones

Reg. 78475

Patent attorney

Dorsey & Whitney LLP

Seattle, WA · 98104-7043

206-903-2381

Darren J Jones

Reg. 36175

Patent attorney

Lowe Graham Jones

Seattle, WA · 98104

206-234-2490

Lucinda A Jones

Reg. 57921

Patent attorney

Shook, Hardy & Bacon

Seattle, WA · 98104

206-344-7600

Phillip B C Jones

Reg. 38195

Patent attorney

Spokane, WA · 99202-4343

509-534-6766

Simone L Jones

Reg. 41951

Patent attorney

Seattle, WA · 98199

206-285-1337

Christina M. Jordan

Reg. 61098

Patent attorney

Tune Therapeutics

Seattle, WA · 98101

917-596-7439

David A Jorgensen

Reg. 61490

Patent attorney

Country Administration Building

Okanogan, WA · 98840

509-422-7289

Neil Juneja

Reg. 67508

Patent attorney

Gleam Law, PLLC

Seattle, WA · 98122

206-319-5296

Alexander A Jurisch

Reg. 78266

Patent attorney

Gordon Rees Scully Mansukhani

Seattle, WA · 98104

206-837-2376

Judy M. Kadoura

Reg. 59883

Patent attorney

Microsoft

Redmond, WA · 98052

425-785-4489

Jessica Andrea M. Kaempf

Reg. 74440

Patent attorney

Fenwick & West LLP

Seattle, WA · 98101

925-984-1763

Mudit Kakar

Reg. 82009

Patent attorney

Zymeworks Biopharmaceuticals Inc.

Bellevue, WA · 98004

206-237-1030

Juliana Kang

Reg. 59028

Patent agent

Sammamish, WA · 98074

425-242-0567

Adam M Kaplan

Reg. 59109

Patent attorney

Amazon

Seattle, WA · 98121

206-266-7809

Jonathan T Kaplan

Reg. 38935

Patent attorney

Kaplan IP Law, PLLC

Camas, WA · 98607-8829

360-281-0667

John R. Karlen· IV

Reg. 72763

Patent attorney

Seed IP Law Group LLP

Seattle, WA · 98104

206-622-4900

Walter William Karnstein

Reg. 35565

Patent attorney

Hewlett-Packard Compnay

Vancouver, WA · 98683-8556

360-212-8579

Frederick A Kaseburg

Reg. 47695

Patent attorney

Seattle, WA · 98125

206-818-7717

Bruce Alan Kaser

Reg. 31531

Patent attorney

Vantage Law PLLC

Issaquah, WA · 98027

425-391-8741

Larry M Kasoff

Reg. 54209

Patent attorney

Seattle, WA · 98164

206-388-3943

Gregory Theodosios Kavounas

Reg. 37862

Patent attorney

BELLEVUE, WA · 98008

425-785-6541

Kraig T. Kawada

Reg. 64608

Patent attorney

Vancouver, WA · 98662

360-828-9600

Pierce V Keating

Reg. 41110

Patent agent

Issaquah, WA · 98029

425-392-2539

Benjamin A Keim

Reg. 59217

Patent attorney

Newport IP, LLC

Bellevue, WA · 98004

888-785-1482

Marcia Synnestvedt Kelbon

Reg. 34358

Patent attorney

Quilcene, WA · 98376

360-908-5165

Beth L Kelly

Reg. 51868

Patent attorney

Seattle Genetics, Inc.

Bothell, WA · 98021

425-527-4118

Donald B Kenady

Reg. 40045

Patent attorney

Wells St John P.S.

Spokane, WA · 99201-0613

509-624-4276

Ruben T. Kendrick

Reg. 73930

Patent attorney

Lane Powell PC

Seattle, WA · 98101

206-223-7045

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.