Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025

Saint Clair, MI ranks #7,310 worldwide for total patents filed all time, with 316 patents from 95 inventors. Leading employers of inventors based in Saint Clair, MI include Advanced Accessory Systems, Illinois Tool Works, Schaeffler.

Showing 1–50 of 95 inventors

Rank Inventor Primary Company Patents
1 Craig A. Stapleton Advanced Accessory Systems 53
2 Robert Osterland Illinois Tool Works 22
3 Michael Kandolf Schaeffler 12
3 Lawrence Marshall Ford 12
#5 Robert T. Szymanski General Motors 11
#6 Bulent Chavdar Eaton 10
#6 Greg Bober LG 10
#8 Terry A. Kent General Motors 9
#9 Aaron Taszreak College Park Industries 8
#9 Joseph Park Ford 8
#11 Christopher Guzman Denso International America 7
#11 John Bartholomew Zimmer 7
#13 Kurt Kurple Organic Chemical 5
#13 John C. Bradley Microsoft 5
#13 John Stockwell Bright Green 5
#13 Douglas Fansler Norma U.S. Holding 5
#13 James Tasiopoulos Hanon Systems 5
#13 Michael A. Schorle Toyoda Gosei Co. 5
#19 Lawrence Robert Rhein Ford 4
#20 Denis Vashuk Dayco Ip Holdings 3
#20 Scott C. Steinmetz 3
#20 Blendi Sullaj 3
#20 William Bostick Tk Holdings 3
#20 Dennis Vroman Ford 3
#20 Arturo Spaccarotelli 3
#20 Lirjon Llusho Ford 3
#20 D. Randall Armant Wayne State University 3
#20 Cary Carruth Daimlerchrysler Ag 3
#29 Aaron Baker Delaware Capital Formation 2
#29 Gerald W. Holbrook Anderson-Cook 2
#29 Michael Edward Chevalier 2
#29 Todd Michael Mendola 2
#29 Floyd Anthony Harter Ford 2
#29 Jerry E. Eschenburg 2
#29 John Arthur Kelvin 2
#29 Michael Vitale Visteon Global Technologies 2
#29 Norman L. Carver 2
#29 Frank Ardigo Faurecia Interior Systems 2
#29 Eric S. Paternoster 2
#29 Timothy Andrew Sikowski Ford 2
#29 Dana Sullivan 2
#29 Ronald D. Stebbeds, Jr. Barnes Group 2
#29 Jeff Kaczperski 2
#29 Bill Bostick Autoliv Asp 2
#29 Michael Mazzola Patent Holding 2
#29 Gregg Anderson Delphi Technologies 2
#29 Charles Heath 2
#48 Russell Hutchins 1
#48 James W. Numbers 1
#48 Anthony J. Distelrath 1

Part of Michigan