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 Kimberly-Clark Worldwide, 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

Douglas A Dallmann

Reg. 65636

Patent attorney

Madison, WI · 53705

503-432-5478

Heidi A Dare

Reg. 50775

Patent agent

McNeill PLLC

Milwaukee, WI · 53202

872-270-2996

Raye L Daugherty

Reg. 47933

Patent attorney

Quarles & Brady LLP

Milwaukee, WI · 53202-4497

414-277-5779

Amy L. De Coster

Reg. 65845

Patent agent

Amcor PLC

Neenah, WI · 54957-0669

920-527-5961

Stephen C. DeGuire

Reg. 79691

Patent attorney

Foley & Lardner LLP

Milwaukee, WI · 53202

414-549-5049

Kirk L Deheck

Reg. 55782

Patent attorney

Boyle Fredrickson. S.C.

Milwaukee, WI · 53203

414-225-9755

Rodney D DeKruif

Reg. 35853

Patent attorney

Reinhart Boerner Van Deuren SC

Milwaukee, WI · 53202

414-298-8360

Patrick L Dell

Reg. 55105

Patent agent

Marjory S. Stewart Law Office

Milwaukee, WI · 53202-4018

414-431-0032

Michael Anthony Della Penna

Reg. 45697

Patent attorney

Senior IP Counsel

Wauwatosa, WI · 53226-4858

414-721-3058

Shane M. Delsman

Reg. 60192

Patent attorney

Godfrey & Kahn, S.C.

Milwaukee, WI · 53202-5615

414-287-9653

Meghan M DeMore

Reg. 69410

Patent attorney

Ryan Kromholz & Manion, S.C.

Milwaukee, WI · 53226-0618

262-783-1300

Elizabeth K Devins

Reg. 71451

Patent attorney

GE Healthcare

Wauwatosa, WI · 53226

262-798-4470

Deanna L Dietrich

Reg. 55783

Patent attorney

University of Wisconsin - Madison

Madison, WI · 53706

608-265-8030

Lucas J. Divine

Reg. 58242

Patent attorney

General Electric Company

Wauwatosa, WI · 53226

262-957-3783

Stephen H Docter

Reg. 44659

Patent attorney

Reinhart Boerner Van Deuren s.c.

Milwaukee, WI · 53202

414-298-8317

Kimberly K Dodd

Reg. 54646

Patent attorney

Foley & Lardner LLP

Milwaukee, WI · 53202

414-271-2400

Elizabeth L. R. Donley

Reg. 57598

Patent attorney

Wisconsin Alumni Research Foundation

Madison, WI · 53726

608-262-6650

Paul F Donovan

Reg. 39962

Patent attorney

Brodhead, WI · 53520

608-558-1663

Sarah Ann Dressel

Reg. 58484

Patent attorney

Kimberly-Clark Worldwide, Inc.

Neenah, WI · 54956

920-721-4405

Michael D Dry

Reg. 51633

Patent attorney

UNICO INC

Franksville, WI · 53126

262-504-7221

Alyssa A Dudkowki

Reg. 40596

Patent attorney

Kimberly-Clark Worldwide, Inc.

Neenah, WI · 54956

920-721-2433

Andrew T Dufresne

Reg. 66636

Patent attorney

Perkins Coie LLP

Madison, WI · 53703

608-663-7460

Dillon E. Durnford

Reg. 70129

Patent attorney

Quarles & Brady LLP

Milwaukee, WI · 53202

414-277-5613

Jay G Durst

Reg. 41723

Patent attorney

Boyle Fredrickson, S.C.

Milwaukee, WI · 53203

414-225-9755

Twinkle V. Dutta

Reg. 84229

Patent attorney

Mequon, WI · 53097

262-282-4722

John P. Dyro· Jr.

Reg. 83242

Patent attorney

Andrus Intellectual Property Law

Milwaukee, WI · 53202-3734

414-223-3787

Mary E Eberle

Reg. 43599

Patent attorney

Whyte Hirschboeck Dudek, S.C.

Madison, WI · 53703-3300

608-255-4440

Amanda L. Eckermann

Reg. 83668

Patent agent

Quarles and Brady

Milwaukee, WI · 53202-4428

414-277-5562

Cody J. Edmond

Reg. 84091

Patent agent

Foley & Lardner LLP

Milwaukee, WI · 53202

414-297-5397

Thomas William Ehrmann

Reg. 20374

Patent attorney

Quarles and Brady LLP

Milwaukee, WI · 53202

414-277-5000

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.