Wisconsin

Patent attorneys in Wisconsin

Wisconsin hosts 724 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 Wisconsin. 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 Boyle Fredrickson, S.C., Quarles & Brady LLP, and Stiennon & Stiennon.

Top cities in Wisconsin

Milwaukee287 Madison145 Neenah30 Waukesha22 Middleton22 Brookfield18 Wauwatosa17 Racine17 Appleton9 Hudson8 Hartland6 Mequon5 Elm Grove5 Germantown4 Oshkosh4 Eau Claire3 Waunakee3 Verona3 Shorewood3 La Crosse3

All practitioners in Wisconsin

Joel David Skinner· Jr

Reg. 33786

Patent attorney

Skinner and Assocs

Hudson, WI · 54016

715-386-5800

Rachel M Slade

Reg. 64951

Patent attorney

McNeill PLLC

Milwaukee, WI · 53202

435-477-6535

Billie Jean Smith

Reg. 36940

Patent attorney

Wong Meyer Smith & McConnell LLC

Milwaukee, WI · 53202

414-559-3186

David Bruce Smith

Reg. 27595

Patent attorney

Michael Best and Briedrich LLP

Milwaukee, WI · 53202

414-271-6560

Heather E. Smith

Reg. 61171

Patent agent

De Pere, WI · 54115

920-309-5393

Jeffry Wayne Smith

Reg. 33455

Patent attorney

Smith Law Office

Madison, WI · 53717

608-824-8300

Kenneth A Smith

Reg. 63352

Patent attorney

Northwoods IP Law

Chippewa Falls, WI · 54729

614-506-2098

Alec D Smyczek

Reg. 63576

Patent attorney

Milwaukee Tool, Inc

Brookfield, WI · 53003

800-729-3878

Martha J Snyder

Reg. 66294

Patent attorney

Quarles & Brady LLP

Madison, WI · 53703

608-251-5000

Jeffrey S Sokol

Reg. 35686

Patent attorney

Milwaukee, WI · 53227

414-272-7200

George H Solveson

Reg. 25927

Patent attorney

Andrus Intellectual Property Law

Milwaukee, WI · 53202

414-271-7590

James Richard Sommers

Reg. 29443

Patent attorney

Hunter & Sommers, LLC

Waukesha, WI · 53187

262-547-7788

Kevin J. Spexarth

Reg. 73778

Patent attorney

Andrus Intellectual Property Law, LLP

Milwaukee, WI · 53202

414-271-5770

Melissa A. Spindler

Reg. 56960

Patent attorney

Smith Keane, LLP

Hartland, WI · 53029

262-563-1438

Thaddeus C Stankowski

Reg. 45522

Patent attorney

Hydrite Chemical Co.

Brookfield, WI · 53045

414-331-7991

David W. Staple

Reg. 65903

Patent attorney

Casimir Jones SC

Middleton, WI · 53562

608-662-1277

David D Stein

Reg. 40828

Patent attorney

Boyle Fredrickson, S.C.

Milwaukee, WI · 53203

414-225-9755

Russell M. Steinbrenner

Reg. 73461

Patent attorney

Michael Best & Friedrich, LLP

Milwaukee, WI · 53202

414-271-6560

Derek C Stettner

Reg. 37945

Patent attorney

Michael Best and Friedrich, LLP

Milwaukee, WI · 53202

414-271-6560

David Edward Steuber

Reg. 25557

Patent attorney

Patentability Associates

Mineral Point, WI · 53565

608-935-5300

David Robert James Stiennon

Reg. 33212

Patent attorney

Stiennon & Stiennon

Madison, WI · 53705-5649

608-250-4870

Patrick J G Stiennon

Reg. 34934

Patent attorney

Stiennon & Stiennon

Madison, WI · 53705-5649

608-250-4870

Michael J Stimson

Reg. 45429

Patent attorney

MIDDLETON, WI · 53562-5212

608-440-1665

Jeff D Stobbe

Reg. 55781

Patent attorney

Law Office of Jeff Stobbe

Big Bend, WI · 53103

262-679-1305

Mitchell J. Stock

Reg. 72468

Patent attorney

Boyle Fredrickson, S.C.

Milwaukee, WI · 53203

414-225-9755

Janet Irmtraud Stockhausen

Reg. 34256

Patent attorney

USDA Forest Service - retired

Madison, WI · 53715-1825

608-236-4022

Denise L Stoker

Reg. 47111

Patent attorney

Kimberly-Clark

Neenah, WI · 54957

920-271-4043

Peter C Stomma

Reg. 36020

Patent attorney

Boyle Fredrickson, S.C.

Milwaukee, WI · 53203

414-225-9755

Jonathan D Stone

Reg. 63076

Patent attorney

Quarles & Brady LLP

Milwaukee, WI · 53202

414-277-5000

Connor D. Strait

Reg. 83949

Patent attorney

Foley & Lardner

Milwaukee, WI · 53202

414-297-5113

Common questions

Do I need a patent attorney based in Wisconsin?

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 Wisconsin-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 Wisconsin?

724 active USPTO-registered patent practitioners list a Wisconsin 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.