Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Greenfield, WI ranks #3,291 worldwide for total patents filed all time, with 915 patents from 223 inventors. Leading employers of inventors based in Greenfield, WI include Milwaukee Electric Tool, Rockwell Automation, Cp Delaware. That works out to 24.2 patents per 1,000 residents, a common benchmark for comparing regional innovation intensity.

Showing 1–50 of 223 inventors

Rank Inventor Primary Company Patents
1 Joseph M. DeBaker Milwaukee Electric Tool 51
2 Thomas A. Nondahl Rockwell Automation 44
3 William J. Radler Cp Delaware 40
#4 Matthew R. Polakowski Milwaukee Electric Tool 26
#4 Joseph H. Ellice Milwaukee Electric Tool 26
#6 Angely Widhany American Medical Technologies 23
#7 Shane McCue Milwaukee Electric Tool 19
#8 Thomas H. Zimmerman Schlumberger Technology 18
#8 Karl S. Schroeder Premark Feg L.L.C. 18
#8 James S. Symanski Cps Technology Holdings 18
#11 Hassan Khalid Pentair Flow Technologies 17
#11 Zoran Vrankovic Rockwell Automation 17
#13 Jason M. Renner Bradley Fixtures 16
#13 Michael Halverson Milwaukee Electric Tool 16
#15 Justin M. Nunez Diversey 14
#16 Justin Michael Stefanko 12
#16 Joseph R. Hoepfl 12
#18 Mark A. Pleshek Andis 9
#18 Jerry Thunes Rockwell Automation 9
#20 Randall J. Slusar Rockwell Automation 8
#20 James D. Braatz Aaa Sales & Engineering 8
#20 David McClanahan Eaton 8
#20 Steven D. Hamilton Quintron Instrument Company 8
#20 Gary S. Butters American Roller Company 8
#20 Kevin E. Stay Modine Manufacturing 8
#26 Robert A. Mazur Aaa Sales & Engineering 7
#26 Otto M. Mageland Johnson Service 7
#26 Kurt P. Lychwick 7
#26 Glenn Meyers Milwaukee Electric Tool 7
#26 David R. Strehlow Tyco Fire Products Lp 7
#26 Michael H. Weinecke Allis-Chalmers 7
#32 Steve P. Kinnard Bay View Industries 6
#32 James R. Garbe Johnson Service 6
#32 Ardaman Singh Grewal Rockwell Automation 6
#32 William F. Line Miller Brewing 6
#32 George J. Dietz CNRS 6
#32 Neal W. Becker Precision Rail And Mfg. 6
#32 Scott Watry AT&T 6
#32 Patrick J. Griesemer Eaton 6
#32 Patrick K. Duffy Rockwell Automation 6
#32 Tyler K. Paddock Johnson Controls Technology 6
#32 Vance Strader Buell Motorcycle 6
#32 Richard John Kaluzny Cooper Technologies 6
#32 Richard J. Molus, Sr. Allen-Bradley Company 6
#45 Dean Erickson Bioform 5
#45 Edwin A. Filipowicz 5
#45 Steven J. Sparacino Spx 5
#45 Patricia M. Ignatowski 5
#45 Michael A. Staeger Abbott 5
#45 Heinz Schmeisser 5

Part of Wisconsin