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, SmithAmundsen LLC, and Quarles & Brady 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

Silas B. Petrie

Reg. 83903

Patent attorney

Michael Best & Friedrich LLP

Milwaukee, WI · 53202

414-271-6560

Joseph A.V. Pfannes

Reg. 74420

Patent agent

Brookfield, WI · 53005

414-882-3915

Andrew T Pham

Reg. 54879

Patent attorney

Whitewater, WI · 53190

650-561-5751

John Thaddeus Pienkos

Reg. 42997

Patent attorney

SmithAmundsen LLC

Milwaukee, WI · 53202

414-847-6170

Thomas Joseph Pienkos

Reg. 46992

Patent attorney

SmithAmundsen LLC

Milwaukee, WI · 53202

414-847-6172

Scott T Piering

Reg. 42075

Patent attorney

Spectrum Brands

Middleton, WI · 53562

608-275-4756

Michael T. Piery

Reg. 71915

Patent agent

Quarles & Brady LLP

Milwaukee, WI · 53202

414-277-5000

John Henry Pilarski

Reg. 33028

Patent attorney

Milwaukee, WI · 53202

414-221-9352

Dwayne A Pinon

Reg. 42077

Patent attorney

Pleasant Prairie, WI · 53158

262-597-5107

Rebecca Jan Pirozzolo-Mellowes

Reg. 53471

Patent attorney

Foley & Lardner LLP

Milwaukee, WI · 53202

414-297-5717

Jacob E Pittman

Reg. 77166

Patent attorney

Skinner & Associates

Hudson, WI · 54016

715-222-9336

Gary Robert Plotecher

Reg. 27830

Patent attorney

Husch Blackwell LLP

Milwaukee, WI · 53202

414-978-5530

Alexander Pokot

Reg. 54376

Patent agent

AP Patents

Williams Bay, WI · 53191

847-262-3036

N. Meredith Porembski

Reg. 61159

Patent attorney

Bell & Manning, LLC

Madison, WI · 53713

608-661-3593

Donald Edwin Porter

Reg. 20597

Patent attorney

Elm Grove, WI · 53122

262-782-3324

Nikhil T Pradhan

Reg. 73296

Patent attorney

Foley & Lardner LLP

Milwaukee, WI · 53202

414-319-7170

Wyatt B Pratt

Reg. 40778

Patent attorney

Milwaukee, WI · 53209

609-902-0789

Derek Lee Prestin

Reg. 47868

Patent attorney

Ruder Ware, L.L.S.C.

Eau Claire, WI · 54702-0187

715-834-3425

David Robert Price

Reg. 31557

Patent attorney

Michael Best & Friedrich

Milwaukee, WI · 53202

414-225-4983

Sebastian Charles Pugliese· III

Reg. 42091

Patent attorney

Pugliese Patent Law LLC

Greenville, WI · 54942

920-243-3101

Ann E Rabe

Reg. 56697

Patent attorney

Quarles & Brady LLP

Milwaukee, WI · 53202

414-277-5000

Matthew D. Rabe

Reg. 61819

Patent attorney

Foley & Lardner LLP

Milwaukee, WI · 53202

414-247-5302

Jennifer R Racine

Reg. 56874

Patent attorney

LaFollette Godfrey & Kahn

Madison, WI · 53703

608-257-3911 X 2243

Daniel George Radler

Reg. 43028

Patent attorney

Quarles and Brady, LLP

Milwaukee, WI · 53202

414-277-5749

James T. Radwill

Reg. 83170

Patent attorney

Oregon, WI · 53575

262-497-7060

Tipton Lyle Randall

Reg. 32626

Patent agent

Chippewa Falls, WI · 54729

715-720-1969

Todd A Rathe

Reg. 38276

Patent attorney

Rathe Lindenbaum, LLP

Mequon, WI · 53097

262-478-9353

Anne M Readel

Reg. 69194

Patent attorney

Madison, WI · 53705

608-320-6744

Joseph Murry Recka

Reg. 27832

Patent attorney

Recka and Joannes SC

Green Bay, WI · 54301

920-435-8159

Karl Frederick Reichenberger

Reg. 60726

Patent attorney

Johnson Controls, Inc.

Milwaukee, WI · 53209

414-491-4985

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.