Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Wisconsin ranks #17 among US states for total patents filed in 2021, with 8,351 patents from 4,723 inventors across 379 cities. On a per-capita basis that is 1.4 patents per 1,000 residents, a standard benchmark for comparing state-level R&D intensity.

Top Cities in Wisconsin 2021

Rank City Patents Inventors
#1 Madison, WI 975 630
#2 Milwaukee, WI 607 297
#3 Appleton, WI 360 183
#4 Oshkosh, WI 299 138
#5 Waukesha, WI 219 127
#6 Brookfield, WI 212 99
#7 Middleton, WI 210 86
#8 Wauwatosa, WI 187 106
#9 Sheboygan, WI 184 88
#10 Neenah, WI 183 112
#11 Hudson, WI 128 63
#12 Mequon, WI 118 60
#13 Menomonee Falls, WI 105 58
#14 Kenosha, WI 99 59
#15 Racine, WI 99 62
#16 Pewaukee, WI 92 50
#17 Cedarburg, WI 87 37
#18 New Berlin, WI 82 51
#19 West Bend, WI 82 48
#20 Hartland, WI 78 44
#21 Grafton, WI 77 31
#22 Oconomowoc, WI 74 55
#23 Germantown, WI 72 48
#24 Fitchburg, WI 67 47
#25 Whitefish Bay, WI 67 37

Top Inventors in Wisconsin 2021

Rank Inventor City Company Patents
1 Sudhi R. Sinha Milwaukee Johnson Controls Technology 32
2 Youngchoon Park Brookfield Johnson Controls Technology 31
3 Andrew D. Baptist Sturtevant IBM 29
#4 Michael J. Wenzel Grafton Johnson Controls Technology 26
#5 Steven W. Hyma Milwaukee Milwaukee Electric Tool 24
#6 Robert D. Turney Watertown Johnson Controls Technology 18
#6 David Delano Ward Somerset Cisco 18
#8 Xudong Wang Middleton WARF 17
#8 Kirk H. Drees Cedarburg Johnson Controls Technology 17
#10 Mohammad N. Elbsat Milwaukee Johnson Controls Tyco Ip Holdings Llp 16
#10 Grant T. Squiers Cudahy Milwaukee Electric Tool 16
#12 Graham P. Lidgard Madison Exact Sciences 14
#12 Christopher S. Hoppe Cedarburg Milwaukee Electric Tool 14
#12 Hatim Allawi Middleton Exact Sciences 14
#15 Gregory van Eyk Middleton Spectrum Brands 13
#15 David Mencel Menomonee Falls Johnson Level & Tool Mfg. Co. 13
#15 Matthew J. Mergener Mequon Milwaukee Electric Tool 13
#15 Timothy I. Salsbury Whitefish Bay Johnson Controls Technology 13
#15 Kyle Harvey West Allis Milwaukee Electric Tool 13
#20 Drew Johnson Sheboygan Kohler 12
#20 Shawn J. Booth Sheboygan Kohler 12
#20 Erik S. Paulson Madison Johnson Controls Technology 12
#20 Michael J. White Ripon K-International 12
#20 Brian T. Davis Burlington S. C. Johnson & Son 12
#20 Michael James Ott Hudson Commscope Technologies 12

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