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Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Waupaca, WI ranks #9,293 worldwide for total patents filed all time, with 222 patents from 45 inventors. Leading employers of inventors based in Waupaca, WI include Brunswick, Kimberly-Clark Worldwide, Illinois Tool Works. That works out to 35.3 patents per 1,000 residents, a common benchmark for comparing regional innovation intensity.

Showing 1–45 of 45 inventors

Rank Inventor Primary Company Patents
1 Thomas S. Kirchhoff Brunswick 42
2 Michael Donald Sperl Kimberly-Clark Worldwide 33
3 James M. Walker Illinois Tool Works 32
#4 Gregory L. Petkovsek Reynolds Consumer Products 15
#5 Lorry F. Sallee 14
#6 Robert H. Menzies 3M 13
#7 Buwa A. Baldeh Cummins Filtration Ip 6
#8 Danji Fukushima Noda Institute For Scientific Research 5
#8 Jeffrey Jakubowski 5
#10 Zachary Erndt Illinois Tool Works 4
#10 Doug Shefelbine Unknown 4
#10 Steven P. Milanowski Kimberly-Clark Worldwide 4
#13 Jack Barrett RTX (Raytheon) 3
#13 Jeffrey Schaefer Visteon 3
#13 Stephen Lawrence Caterpillar 3
#13 Linda K. Lemerande Kimberly-Clark Worldwide 3
#13 Erwin G. Rehbein 3
#18 William L. Powell The Budd 2
#18 David Bernd Kimberly-Clark Worldwide 2
#20 Darrell Duane Bartel 1
#20 Michael Oehlsen 1
#20 Jon Peotter 1
#20 Dawn D. Telfer 1
#20 Jim Cotter Kimberly-Clark Worldwide 1
#20 Marian R. Harris 1
#20 Robert Jezwinski 1
#20 Donald Hinze 1
#20 John A. Nusz 1
#20 Lionel E. Weyenberg 1
#20 John H. Gusmer 1
#20 F. Jon Austin 1
#20 Marsha A Johnson 1
#20 Daniel M. McCourt 1
#20 Frederick M. Degner The Budd 1
#20 James S. Hardenbergh Sara Lee 1
#20 John Arabshian 1
#20 Ronald Jay Beyerstedt Champion International Corporation Limited 1
#20 Niki Vujaklya 1
#20 Eric Francis Sweeney Kimberly-Clark Worldwide 1
#20 Jay D. Danielsen 1
#20 Michael Douglas Sperl Kimberly-Clark Worldwide 1
#20 Thomas Justmann 1
#20 Donald J. Bollerman Illinois Tool Works 1
#20 Gary L Winters 1
#20 Rick Jalling Green Bay Packaging 1

Part of Wisconsin