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, Exact Sciences Corporation, and S.C. Johnson & Son, 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

Jane J Choi

Reg. 39980

Patent attorney

S.C. Johnson & Son, Inc.

Racine, WI · 53403-2236

262-260-2206

Ajit K Chowdhury

Reg. 46623

Patent agent

Bioionix, Inc.

McFarland, WI · 53558

608-838-0300X 266

Lora L Chupita

Reg. 67498

Patent attorney

Rose & deJong, S.C.

Milwaukee, WI · 53204

414-274-1400

Amy L Cigan

Reg. 45494

Patent agent

Genus plc

DeForest, WI · 53532

608-846-6333

Edward E Clair

Reg. 51565

Patent attorney

Kunes Auto & RV Group

Delavan, WI · 53115

773-844-7782

Christina A. Clark

Reg. 83597

Patent agent

Foley and Lardner LLP

Milwaukee, WI · 53202-3236

414-297-5038

Kyle A. Clow

Reg. 82118

Patent agent

Michael Best & Friedrich LLP

Milwaukee, WI · 53202

414-260-5788

Lisamarie A Collins

Reg. 71955

Patent attorney

Foley & Lardner, LLP

Madison, WI · 53703

608-257-5035

R Warren Comstock

Reg. 25844

Patent attorney

Baileys Harbor, WI · 54202

920-823-2836

Thomas John Connelly

Reg. 28404

Patent attorney

Northwind IP Law, S.C.

Appleton, WI · 54911

920-831-0100

Sheena E Conners

Reg. 63930

Patent attorney

Bemis Company, Inc.

Neenah, WI · 54956

920-527-5521

Kevin T Conroy

Reg. 38113

Patent attorney

Exact Sciences Corporation

Madison, WI · 53719

608-284-5750

Carly Serena Conway

Reg. 68978

Patent attorney

Exact Sciences Corporation

Madison, WI · 53719

608-733-5591

Jack M Cook

Reg. 56098

Patent attorney

Quarles & Brady LLP

Milwaukee, WI · 53202

414-277-5405

Lillian R. Cook

Reg. 82559

Patent agent

Foley & Lardner LLP

Milwaukee, WI · 53202

414-297-4961

John C Cooper· III

Reg. 26416

Patent attorney

Foley & Lardner LLP

Milwaukee, WI · 53066

414-297-5774

Karl A. Copes

Reg. 78618

Patent agent

Foley & Lardner LLP

Milwaukee, WI · 53202

262-933-0132

Jeffery L. Cornelison

Reg. 80311

Patent agent

McNeill PLLC

Milwaukee, WI · 53202

224-262-2212

Mathew E Corr

Reg. 45434

Patent attorney

Boyle Fredrickson, S.C.

Milwaukee, WI · 53203

414-225-9755

George R Corrigan

Reg. 34803

Patent attorney

Corrigan Law Office

Stoughton, WI · 53589

920-954-1099

Jeffrey N Costakos

Reg. 34144

Patent attorney

Foley & Lardner LLP

Milwaukee, WI · 53202

414-271-2400

Kyle M Costello

Reg. 68700

Patent attorney

Boyle Fredrickson, S. C.

Milwaukee, WI · 53203

414-225-9755

Charles E Cowles

Reg. 77463

Patent agent

Madison, WI · 53717

608-259-6720

Julia M Cox

Reg. 62318

Patent agent

Michael Best and Friedrich, LLP

Madison, WI · 53701

608-283-4429

Julianne M Cozad Smith

Reg. 62174

Patent agent

Michael Best & Friedrich, LLC

Milwaukee, WI · 53202

414-271-6560

Adam E Crawford

Reg. 63315

Patent attorney

Foley & Lardner LLP

Milwaukee, WI · 53202

414-319-7374

Michael Joseph Cronin

Reg. 61196

Patent agent

Husch Blackwell LLP

Madison, WI · 53701

608-258-7393

Matthew G. Cunningham

Reg. 78709

Patent agent

Foley & Lardner LLP

Milwaukee, WI · 53202

414-297-5111

Jeffrey B Curtin

Reg. 37601

Patent attorney

Kimberly-Clark

Neenah, WI · 54957

920-721-6436

Laura A Dable

Reg. 46436

Patent attorney

Ryan Kromholz and Manion, S.C.

Milwaukee, WI · 53226

262-783-1300

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.