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 Foley & Lardner LLP, Quarles & Brady LLP, and Matthews Archery, Inc..

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

Adam J. Kurzynski

Reg. 77113

Patent agent

Neenah, WI · 54956

715-498-1353

Michael J La Fond

Reg. 54247

Patent attorney

Sherwood, WI · 53211

414-467-9587

Jeremy G Laabs

Reg. 53170

Patent attorney

Matthews Archery, Inc.

Sparta, WI · 54656

608-269-2728 X405

Zachary W. Lackey

Reg. 74079

Patent attorney

Foley & Lardner LLP

Milwaukee, WI · 53202

414-297-5743

Nicholas M Lagerwall

Reg. 63272

Patent attorney

Foley & Lardner LLP

Madison, WI · 53703

608-258-4466

Laura N. Laidlaw

Reg. 82160

Patent attorney

Michael Best & Friedrich LLP

Madison, WI · 53703

414-277-3450

Michael R. Laing

Reg. 76368

Patent attorney

Perkins Coie, LLP

Madison, WI · 53703

608-663-7470

James A Laird

Reg. 41137

Patent agent

Hudson, WI · 54016

715-381-5335

Eric J Lalor

Reg. 54631

Patent attorney

Boyle Fredrickson, S.C.

Milwaukee, WI · 53203

414-225-9755

Jeffrey D. Lane

Reg. 68880

Patent agent

Lane Patents LLC

Wausau, WI · 54401-9042

715-842-1133

Brian L Laning

Reg. 77345

Patent attorney

Husch Blackwell LLP

Milwaukee, WI · 53202

414-978-5524

Michael B. Larson

Reg. 69270

Patent attorney

Quarles & Brady LLP

Milwaukee, WI · 53202

612-224-3755

Casimir F Laska

Reg. 30862

Patent attorney

Michael Best and Friedrich

Waukesha, WI · 53188-1174

262-956-6560

Stephanie M Laundre

Reg. 65124

Patent attorney

Curt G. Joa, Inc.

Sheboygan Falls, WI · 53085

920-467-7339

Robert A Lawler

Reg. 62075

Patent attorney

Madison, WI · 53704

608-609-7379

Edward R Lawson· Jr

Reg. 41931

Patent attorney

Briggs & Stratton, LLC

Wauwatosa, WI · 53222

414-479-1375

Molly S. Lawson

Reg. 58890

Patent attorney

Michael Best & Friedrich LLP

Milwaukee, WI · 53202

414-271-6560

Karen A LeCuyer

Reg. 51928

Patent attorney

Dewitt LLP

Madison, WI · 53703-2865

608-252-9290

Johanna E Lee

Reg. 70048

Patent agent

Madison, WI · 53719

832-212-7685

Charles L. Leeck

Reg. 50343

Patent attorney

Cottage Groove, WI · 53527

262-370-9403

Emma J Leider

Reg. 84391

Patent agent

Foley and Lardner LLP

Milwaukee, WI · 53202-5306

414-297-5255

Alexander C. Lemke

Reg. 79030

Patent attorney

Godfrey & Kahn, S.C.

Milwaukee, WI · 53202

414-287-9313

Kenneth G Lemke

Reg. 47746

Patent attorney

Brunswick Corporation

Fond du Lac, WI · 54936-1939

920-929-5000

Mark J. Lemke

Reg. 73524

Patent attorney

General Electric Company

Waukesha, WI · 53188

262-650-5515

Matthew E. Leno

Reg. 41149

Patent attorney

Hansen Reynolds LLC

Milwaukee, WI · 53202

414-455-7676

Joseph T Leone

Reg. 37170

Patent attorney

DeWitt LLP

Madison, WI · 53703

608-255-8891

Kenneth C Lerner

Reg. 48847

Patent agent

Quincy Bioscience Holding Company, Inc.

Madison, WI · 53717

608-827-8100

Stephen Lesavich

Reg. 43749

Patent attorney

Lesavich High-Tech Law Group, P.C.

Kenosha, WI · 53144

312-332-3751

Theodore H. Lester

Reg. 82085

Patent agent

Quarles & Brady LLP

Milwaukee, WI · 53202

414-277-5528

Brandon M. Lewis

Reg. 67977

Patent agent

Madison, WI · 53715

216-408-5625

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.