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 Microsoft Corporation, Kilpatrick Townsend & Stockton LLP, and LEE & HAYES, PLLC.

Top cities in Washington

All practitioners in Washington

John B Nelson

Reg. 69680

Patent attorney

LEE & HAYES, PLLC

Spokane, WA · 99201

509-324-9256

Remembrance L. Newcombe

Reg. 70697

Patent agent

Rainier Patents

Spokane, WA · 99201

509-252-5015

Kenneth Kahan W Newton

Reg. 73157

Patent attorney

Polsinelli PC

Seattle, WA · 98104

206-393-5424

Chun Man Ng

Reg. 36878

Patent attorney

Perkins Coie, LLP

Seattle, WA · 98101

206-359-800

Holly L. Nguyen

Reg. 53385

Patent attorney

Oculus VR, LLC

Redmond, WA · 98052

206-708-9060

Jimmy Nguyen

Reg. 59119

Patent agent

Kent, WA · 98032

Thu Nguyen

Reg. 72931

Patent agent

Lee & Hayes, PLLC

Seattle, WA · 98101

206-876-6012

Sarah E. Nick

Reg. 84552

Patent agent

Fortem IP

Seattle, WA · 98101

253-343-1220

Mark F. Niemann

Reg. 61817

Patent attorney

Wolfe-SBMC

Spokane, WA · 99201-3622

509-755-7259

Elena Nilosek

Reg. 74568

Patent agent

Nilosek IP Consulting, LLC

Snohomish, WA · 98296

207-850-0713

Hiroyuki Nishimoto

Reg. 800117

Limited recognition

SOEI Hybrid IP P.S.

Seattle, WA · 98121

425-345-1266

Bo Niu

Reg. 78669

Patent attorney

Microsoft Corporation

Redmond, WA · 98052

425-722-0924

Patrick M Njeim

Reg. 69319

Patent attorney

Kilpatrick Townsend & Stockton LLP

Seattle, WA · 98101

206-467-9600

George T Noe

Reg. 26967

Patent attorney

Everett, WA · 98208

425-337-6376

Gregory M. Nordstrom

Reg. 74082

Patent agent

Camas, WA · 98607

507-398-9785

Jordan Paul Norton

Reg. 74060

Patent attorney

Truveta Inc.

Bellevue, WA · 98004

801-842-9854

Carol Nottenburg

Reg. 39317

Patent attorney

Cougar Patent Law

Renton, WA · 98057

206-860-2120

Leo Victor Novakoski

Reg. 37198

Patent attorney

Microsoft Corporation

Redmond, WA · 98052-6399

425-705-5060

Melissa A. Nowak

Reg. 68088

Patent attorney

Christensen O'Connor Johnson Kindness PLLC

Seattle, WA · 98101-3029

206-682-8100

Thomas S Nowak

Reg. 67998

Patent attorney

Lyell Immunopharma, Inc.

Seattle, WA · 98109

650-695-0677

Elizabeth Earhart Nugent

Reg. 43839

Patent attorney

Bellevue, WA · 98007

425-698-0932

Nicholas J. Nugent

Reg. 69842

Patent attorney

Woodinville, WA · 98072

425-402-2840

Linda J Nyari

Reg. 30968

Patent attorney

PATH

Seattle, WA · 98121

206-302-4858

Daniel P. O'Brien

Reg. 65545

Patent attorney

Seed Intellectual Property Law Group LLP

Seattle, WA · 98104-70604

206-622-4900

Bruce E O'Connor

Reg. 24849

Patent attorney

Seattle, WA · 98121

206-852-9265

Thomas J. O'Connor

Reg. 81503

Patent agent

Kilpatrick Townsend & Stockton LLP

Seattle, WA · 98106

816-729-9349

Sean William O'Dea

Reg. 37690

Patent attorney

Bellevue, WA · 98008

425-445-6162

Francis P. O'Neill

Reg. 71750

Patent agent

Creative Patent

Bellingham, WA · 98225

505-310-3776

Shayne E. O'Reilly

Reg. 58765

Patent attorney

Liberty Lake, WA · 99019

336-253-6560

James L. O'Sullivan

Reg. 65618

Patent agent

CKC & Partners Co., LLC

Seattle, WA · 98125

888-388-6609

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.