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 Casimir Jones, S.C., Michael Best & Friedrich LLP, and Boyle Fredrickson, S.C..

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

Daniel D Biesterveld

Reg. 45898

Patent attorney

Bemis Company, Inc.

Neenah, WI · 54956

920-527-5264

Rex M Bitner

Reg. 69150

Patent agent

Touch 4N6-ID Technology

Grafton, WI · 53024

414-881-4250

Lauren V Blakely

Reg. 70247

Patent attorney

McNeill PLLC

Milwaukee, WI · 53202

650-779-0002

Jonathan M. Blanchard

Reg. 80408

Patent agent

Milwaukee, WI · 53202

414-223-2538

Daniel A Blasiole

Reg. 64469

Patent agent

DeWitt LLP

Madison, WI · 53703

608-395-6758

Lyndsey K Bley

Reg. 76070

Patent agent

Cottage Grove, WI · 53527

608-698-4192

Sarah E. Bloch

Reg. 79763

Patent agent

Quercus Biosolutions

Jefferson, WI · 53549

636-577-1137

Erin Ella Block

Reg. 78154

Patent attorney

Godfrey & Kahn, SC

Milwaukee, WI · 53202

414-287-9540

Noah K. Blue

Reg. 82072

Patent agent

Quarles & Brady LLP

Milwaukee, WI · 53202

414-277-500

Gregory S Bollis

Reg. 52630

Patent attorney

Milwaukee Electric Tool Corp.

Brookfield, WI · 53005

262-788-2677

Jason R Bond

Reg. 45439

Patent attorney

Casimir Jones, S.C.

Middleton, WI · 53562

608-662-1277

Terry J. Booth

Reg. 74594

Patent attorney

Rogahn Jones LLC

Waukesha, WI · 53188

262-347-4558

James D. Borchardt

Reg. 62025

Patent attorney

Reinhart Boerner Van Deuren s.c.

Milwaukee, WI · 53202

414-298-8160

Anthony J Bourget

Reg. 36753

Patent attorney

Bourget Law, S.C.

Eau Claire, WI · 54702

715-835-5232

James F Boyle

Reg. 33653

Patent attorney

Boyle Fredrickson, S.C.

Milwaukee, WI · 53203

414-225-9755

Laura L Bozek

Reg. 38085

Patent attorney

Amcor Flexibles North America, Inc.

Neenah, WI · 54956

920-527-5254

Brian F Bradley

Reg. 73951

Patent agent

Casimir Jones, S.C.

Middleton, WI · 53562

608-662-1277

Anthony C. Brandt

Reg. 82116

Patent agent

Michael Best & Friedrich LLP

Madison, WI · 53703

608-283-0111

Nicholas A Brannen

Reg. 51224

Patent attorney

Brannen Law Office, LLC

Fond du Lac, WI · 54935

920-322-9130

Michael S Brayer

Reg. 51495

Patent attorney

Boyle Fredrickson S.C.

Milwaukee, WI · 53203

414-225-9755

George T Breitenstein

Reg. 30710

Patent attorney

Amherst, WI · 54406-0328

715-824-7630

Nicolaas T Bressers

Reg. 77984

Patent attorney

Michael Best & Friedrich LLP

Milwaukee, WI · 53202

312-596-5821

Elisabeth Townsend Bridge

Reg. 37523

Patent attorney

SmithAmundsen LLC

Milwaukee, WI · 53202-3170

414-847-6154

David P Britton

Reg. 76629

Patent attorney

Foley & Lardner

Milwaukee, WI · 53202

414-319-7107

Julianne M Brock

Reg. 80272

Patent attorney

Madison, WI · 53703

419-346-2819

John L Brodersen

Reg. 51236

Patent attorney

Kimberly-Clark Worldwide INC

Neenah, WI · 54956

920-721-3862

Adam L Brookman

Reg. 32401

Patent agent

Boyle Fredrickson, S.C.

Milwaukee, WI · 53203

414-225-9755

Kenneth S. Brooks

Reg. 73613

Patent attorney

Quarles and Brady, LLP

Milwaukee, WI · 53202

414-277-3038

Mary Ann D. Brow

Reg. 42363

Patent attorney

Casimir Jones, S.C.

Middleton, WI · 53562

608-662-1277

Matthew D. Brown

Reg. 75032

Patent attorney

Michael Best & Friedrich LLP

Waukesha, WI · 53188-1174

262-956-6560

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.