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 Wilson Sonsini Goodrich & Rosati, Perkins Coie LLP, and Foster Pepper, PLLC.

Top cities in Washington

All practitioners in Washington

Yeu-Yan Perng

Reg. 74815

Patent attorney

Foster Pepper, PLLC

Seattle, WA · 98101

206-447-6233

Jacob L Peterson

Reg. 65096

Patent attorney

Morgan, Lewis & Bockius LLP

Seattle, WA · 94304

206-274-6400

Jeremy D Peterson

Reg. 52115

Patent attorney

District of Columbia, WA · 20015-2052

202-871-0140

Wendy A Petka

Reg. 53459

Patent attorney

Outpace Bio, Inc.

Seattle, WA · 98109

206-209-5686

Emily C Peyser

Reg. 59844

Patent attorney

Polsinelli PC

Seattle, WA · 98104

206-393-5441

Timmy V. Pham

Reg. 82726

Patent agent

Fortem IP

Seattle, WA · 98101

120-657-83582

Adam L K Philipp

Reg. 42071

Patent attorney

AEON Law

SEATTLE, WA · 98102-5615

206-217-2200

David Duane Phinney

Reg. 48364

Patent attorney

Wilson Sonsini Goodrich & Rosati

Seattle, WA · 98104

206-883-2561

Vanessa B Pierce

Reg. 42074

Patent attorney

Bowman Pierce Consulting, LLC

East Wenatchee, WA · 98802

202-834-0833

Cameron B Pilling

Reg. 62085

Patent attorney

Perkins Coie, LLP

Seattle, WA · 98101

206-359-8000

Maurice Joseph Pirio

Reg. 33273

Patent attorney

Perkins Coie LLP

Seattle, WA · 98101

206-583-8548

Farid Piroozmandi

Reg. 64117

Patent attorney

SIPA

Snohomish, WA · 98290

425-877-5299

Dennis R Plank

Reg. 37421

Patent agent

Littlerock, WA · 98556

360-273-3997

David M. Platz

Reg. 60013

Patent attorney

Amazon.com

Seattle, WA · 98108-81226

206-266-1000

Grzegorz S Plichta

Reg. 55541

Patent attorney

Davis Wright Tremaine LLP

Seattle, WA · 98104

206-757-8112

Kenneth E Plochinski

Reg. 59166

Patent attorney

Kenneth Plochinski

Seattle, WA · 98115

206-909-6625

Jacob T. Plovanic

Reg. 78360

Patent attorney

Kilpatrick Townsend & Stockton LLP

Seattle, WA · 98101

206-224-2869

Gregory Maurice Plow

Reg. 43005

Patent agent

Poulsbo, WA · 98370

360-697-3486

Aaron J Poledna

Reg. 54675

Patent attorney

Perkins Coie LLP

Seattle, WA · 98101-3099

206--35-9-8000

Alexander Polyansky

Reg. 77134

Patent agent

Patent Wealth LLC

SEATTLE, WA · 98109

571-212-9470

Brian W Poor

Reg. 32928

Patent attorney

Christensen O'Connor Johnson Kindness PLLC

Seattle, WA · 98101-3029

206-682-8100

Garrett T Potter

Reg. 76602

Patent attorney

Wilson Sonsini Goodrich & Rosati

Seattle, WA · 98104

206-295-7363

Sharon R Powell

Reg. 53478

Patent attorney

Issaquah, WA · 98029

425-369-0607

Tracy S Powell

Reg. 53479

Patent attorney

Powell IP Law, PLLC

Bainbridge Island, WA · 98110

206-250-0944

William C. Powell· III

Reg. 73672

Patent attorney

Newport IP, LLC

Bellevue, WA · 98004

206-234-1244

James Leonard Price

Reg. 27376

Patent agent

Spokane, WA · 99223

509-448-5741

Garrison T. Prinslow

Reg. 71889

Patent attorney

Cle Elum, WA · 98922

206-427-7361

Devon Whitney Pritchard

Reg. 48579

Patent attorney

Nintendo of America, Inc.

Redmond, WA · 98052

425-861-2876

James L Proctor· Jr.

Reg. 77230

Patent attorney

Vancouver, WA · 98685

717-701-2710

William A. Prorok

Reg. 76864

Patent attorney

Sequim, WA · 98382

360-912-1878

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.