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 Michael Best & Friedrich LLP, Casimir Jones S.C., and Andrus Intellectual Property Law, LLP.

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

M Paul Hendrickson

Reg. 24523

Patent attorney

M. Paul Hendrickson Law Offices

Holmen, WI · 54636

608-526-4422

Rebecca L Henkel

Reg. 53015

Patent agent

CNH Industrial America LLC

Muskego, WI · 53150

262-939-5978

Stephen L. Hennessy

Reg. 71248

Patent attorney

Milwaukee Tool

Brookfield, WI · 53005

800-729-3878

Jennifer M Heywood

Reg. 65648

Patent attorney

Hudson, WI · 54016

414-526-9351

Christopher E. Hinrichs

Reg. 80385

Patent agent

Michael Best & Freidrich LLP

Milwaukee, WI · 53202

414-223-2501

Jeffrey Hirsch

Reg. 68941

Patent agent

Thermo Fisher Scientific

Madison, WI · 53711

608-276-5634

Leslie C Hodges

Reg. 41843

Patent attorney

GE Healthcare

Brookfield, WI · 53045-3597

262-957-3790

Nicholas P Hoffman

Reg. 57968

Patent attorney

Appleton, WI · 54911

215-801-0196

Kirk J Hogan

Reg. 65033

Patent attorney

Casimir Jones S.C.

Middleton, WI · 53562

608-662-1277

Bruce Holman

Reg. 58162

Patent agent

Milwaukee, WI · 53222

414-771-1425

Peter T Holsen

Reg. 54180

Patent attorney

Andrus Intellectual Property Law, LLP

Milwaukee, WI · 53202

414-271-7590

Jayson L Hongsermeier

Reg. 61929

Patent agent

Michael Best & Friedrich LLP

Waukesha, WI · 53188

262-956-6560

Scott K Houle

Reg. 80696

Patent agent

Green Bay, WI · 54301

920-819-4261

Stephen R. Howe

Reg. 67015

Patent attorney

Husch Blackwell LLP

Milwaukee, WI · 53202

414-978-5393

David Pennant Howell

Reg. 69040

Patent attorney

Sheboygan, WI · 53083

920-698-1524

Rikki A. Hullinger

Reg. 77414

Patent agent

Michael Best & Friedrich LLP

Madison, WI · 53703

508-523-6096

Jason M Hunt

Reg. 53048

Patent attorney

Boardman & Clark LLP

Madison, WI · 53701-0927

608-257-9521

Michelle Denise Hunt

Reg. 42678

Patent agent

Cellular Dynamics International, Inc.

Madison, WI · 53711

608-310-5132

Thomas J. Hunter

Reg. 69775

Patent agent

Middleton, WI · 53562

612-961-9456

Christopher J Hussin

Reg. 51829

Patent attorney

Boardman & Clark LLP

Madison, WI · 53701-0927

608-257-9521

Eric N. Huston

Reg. 65684

Patent attorney

Trek Bicycle Corp.

Waterloo, WI · 53594-1379

920-478-2191 X12417

George M Hutchinson

Reg. 67504

Patent agent

Glideslope Partners, LLC

Bayside, WI · 53217

414-687-3272

Sarah E Hyde

Reg. 77525

Patent attorney

Spectrum Brands

Middleton, WI · 53562

414-559-0682

Luke D. Hyndiuk

Reg. 82082

Patent agent

Milwaukee, WI · 53202

414-297-5078

Benjamin R Imhoff

Reg. 60036

Patent attorney

Andrus Intellectual Property Law, LLP

Milwaukee, WI · 53202

414-271-7590

Thomas A Isenbarger

Reg. 71476

Patent attorney

Casimir Jones S.C.

Middleton, WI · 53562-5527

608-662-1277

Alexander G. Izzo

Reg. 77107

Patent attorney

Michael Best & Friedrich LLP

Milwaukee, WI · 53202

414-271-6560

Brian W. Jacobs

Reg. 74036

Patent attorney

Michael Best and Friedrich LLP

Milwaukee, WI · 53202

414-270-2733

Lauren E. Jafuta

Reg. 84533

Patent agent

Quarles & Brady LLP

Milwaukee, WI · 53202

414-277-5408

Nathan D Jamison

Reg. 48876

Patent attorney

Whitefish Bay, WI · 53217

414-962-2830

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.