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 Seed Intellectual Property Law Group PLLC, Bion2 Inc, and Wells St. John P.S..

Top cities in Washington

All practitioners in Washington

Richard G Sharkey

Reg. 32629

Patent attorney

Seed Intellectual Property Law Group PLLC

Seattle, WA · 98104-7092

206-622-4900

Anu Sharma

Reg. 47935

Patent attorney

Mercer Island, WA · 98040

406-690-9031

Kenneth K Sharples

Reg. 35355

Patent attorney

Bion2 Inc

Seattle, WA · 98122

505-699-6688

James D Shaurette

Reg. 39833

Patent attorney

Wells St. John P.S.

Spokane, WA · 99201

509-624-4276

David M Shaw

Reg. 38688

Patent attorney

Bainbridge Island, WA · 98110

408-390-8329

Diana Kay Sheiness

Reg. 35356

Patent agent

Edmonds, WA · 98026

425-640-2902

David Patrick Sheldon

Reg. 62494

Patent attorney

Christensen O'Connor Johnson Kindness PLLC

Seattle, WA · 98101-3029

206-682-8100

Nicholas V Sherbina

Reg. 54443

Patent attorney

Sherbina Intellectual Property Law, PLLC

Poulsbo, WA · 98370

206-319-6958

Paul S Sherman· Jr.

Reg. 78759

Patent attorney

Copalis Beach, WA · 20006

206-369-5381

Ashley M. Sherrid

Reg. 81446

Patent agent

Cooley LLP

Seattle, WA · 98101-1355

206-452-8824

Leah Sherry

Reg. 43918

Patent attorney

Edmonds, WA · 98026

408-460-7940

Makan Shetabi

Reg. 67155

Patent attorney

Redmond, WA · 98053

206-683-3808

Thomas A. Shewmake

Reg. 69510

Patent attorney

Seed IP Law Group LLP

Seattle, WA · 98104

206-622-4900

Lucy Shigemitsu

Reg. 50248

Patent attorney

Seattle, WA · 98116

206-257-4838

Scott Yutaka Shigeta

Reg. 50398

Patent attorney

Newport IP, LLC

Bellevue, WA · 98004

888-785-1482

Wooshik Shim

Reg. 72289

Patent attorney

Bold IP, PLLC

Mountlake Terrace, WA · 98043

800-894-7615

Joseph H Shin

Reg. 78806

Patent agent

Davis Wright Tremaine, LLP

Seattle, WA · 98104-1610

206-757-8464

William W. Shiraki

Reg. 57133

Patent attorney

Woodinville, WA · 98072

858-254-8295

Martin Layne Shively

Reg. 33553

Patent attorney

Microsoft Corporation

Redmond, WA · 98052

425-703-4771

Virginia P Shogren

Reg. 45813

Patent attorney

Virginia P. Shogren, P.C.

Sequim, WA · 98382

360-461-5551

Eric R. A. Shreiner

Reg. 78047

Patent attorney

Baker & Hostetier, LLP

Seattle, WA · 98104

206-332-1380

Thomas J Shrum

Reg. 66466

Patent attorney

Randall Danskin PS

Spokane, WA · 99201

509-747-2052

Haining Shu

Reg. 73316

Patent agent

Lee & Hayes, P.C.

Spokane, WA · 99201

509-324-9256

Cynthia L Shumate

Reg. 38303

Patent attorney

lmmunome, Inc.

Bothell, WA · 98011

206-817-8124

Timothy E Siegel

Reg. 37442

Patent attorney

Timothy E Siegal Patent Law, PLLC

Bellevue, WA · 98004

425-283-1166

Randy O Sigle

Reg. 47944

Patent agent

Fred Hutchinson Cancer Research Ctr

Seattle, WA · 98125

206-525-9561

Joseph K Siino

Reg. 37533

Patent attorney

Siino Ventures, LLC

Kirkland, WA · 98033

425-307-1555

Anni Johanna Siitonen

Reg. 74974

Patent attorney

Perkins Coie LLP

Seattle, WA · 98101

120-635-93594

George P Simion

Reg. 47089

Patent attorney

TerraPower, LLC

Bellevue, WA · 98033

650-450-0551

John A Simmons· III

Reg. 84870

Patent agent

Auburn, WA · 98001

580-458-9919

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.