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 Seed Intellectual Property Law Group LLP, Foster Pepper PLLC, and Shook, Hardy & Bacon L.L.P..

Top cities in Washington

All practitioners in Washington

Heather A. Hedeen

Reg. 71468

Patent attorney

Shook, Hardy & Bacon L.L.P.

Seattle, WA · 98104

206-344-7606

Karl A. Hefter

Reg. 65851

Patent attorney

Seed Intellectual Property Law Group LLP

Seattle, WA · 98104

206-622-4900

Tracy M Heims

Reg. 53010

Patent attorney

Apex Juris, pllc

Edmonds, WA · 98020

206-664-0314

Karen M Henckel

Reg. 58371

Patent attorney

Seed Intellectual Property Law Group LLP

Seattle, WA · 98104

206-622-4900

Mark Wayne Hendricksen

Reg. 32356

Patent attorney

Wells St. John P.S.

Spokane, WA · 99201-0613

509-624-4276

Elizabeth A. Hendrickson

Reg. 81539

Patent agent

Seattle, WA · 98126

314-609-2301

Mark R Hennings

Reg. 48982

Patent attorney

Kingston, WA · 98346

360-649-5566

James Arthur Henricks

Reg. 31168

Patent attorney

Henricks Slavin LLP

Anacortes, WA · 98221-0040

360-503-3101

Janis Carol Henry

Reg. 34347

Patent attorney

Bellevue, WA · 98006

206-605-1329

Madeline D. Hepler

Reg. 71375

Patent attorney

Foster Pepper PLLC

Seattle, WA · 98101

206-447-7898

Michele Karen Herman

Reg. 35893

Patent attorney

Intellectual Ventures

Bellevue, WA · 98004

425-247-2446

Karl Robert Hermanns

Reg. 33507

Patent attorney

Seed Intellectual Property Law Group LLP

Seattle, WA · 98104

206-622-4900

Vivian Nicole Hernandez

Reg. 902969

Limited recognition

University of Washington School of Law

Seattle, WA · 98195-3020

904-517-4593

Lynn Howard Hess

Reg. 25160

Patent attorney

Mercer Island, WA · 98040

206-232-8205

Aaron H. Heyamoto

Reg. 83013

Patent agent

Edgewood, WA · 98371

206-915-5515

Shawn P. Hickey

Reg. 83014

Patent attorney

K&L Gates

Seattle, WA · 98104

206-370-5704

James R Hietala

Reg. 51802

Patent attorney

Hietala Law PLLC

Snoqualmie, WA · 98065

206-960-4173

Leslie M Hill

Reg. 51805

Patent attorney

Snohomish, WA · 98290

202-669-2961

Russell B. Hill

Reg. 66106

Patent attorney

CHC Helicopter

Bellingham, WA · 98225

360-607-1245

Bradley J. Hillis

Reg. 59647

Patent attorney

Seattle, WA · 98109

917-597-5978

Edward Van Hiskes

Reg. 30391

Patent attorney

Brier, WA · 98036

206-306-8882

Ronald D Hochnadel

Reg. 31370

Patent attorney

Intrass

Seattle, WA · 98112

206-380-7259

Benjamin J. Hodges

Reg. 69500

Patent attorney

Foster Pepper PLLC

Seattle, WA · 98101

206-447-6282

Robert D Hoge

Reg. 55273

Patent attorney

Nautilus, Inc.

Vancouver, WA · 98683

360-859-5750

Matthew E. Hohn

Reg. 80486

Patent attorney

Davis Wright Tremaine LLP

Seattle, WA · 98104-1610

206-622-3150

Julie Ann Holly

Reg. 33246

Patent agent

Fred Hutchinson Cancer Research Center

Seattle, WA · 98109

206-667-6225

Abigail L Holman

Reg. 74708

Patent attorney

Wolfe-SBMC

Spokane, WA · 99201-3622

509-755-7245

Cole Sanders Holman

Reg. 77303

Patent agent

Spokane, WA · 99224

480-532-7853

Danielle J Holmes

Reg. 39720

Patent attorney

Microsoft Corporation

Redmond, WA · 98052

425-706-1651

Roxanne J Holmes

Reg. 53031

Patent agent

Seattle Genetics, Inc.

Bothell, WA · 98021

425-527-4132

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.