Showing 1–21 of 21 inventors

Rank Inventor Primary Company Patents
1 Joshua W. Steffen Caterpillar 31
2 Lee Marvin John Assam State Farm 25
3 Richard R. Bergquist Optimum Quality Grains, L.L.C. 14
#4 Nathan Barnard State Farm 9
#4 James Young Norco Industries 9
#6 Eric L. Rogers Caterpillar 5
#7 Glenn Purcell Bayer Healthcare 4
#8 Mark Henneberry Vertec Biosolvents 3
#8 Robert A. Prochnow Solar Turbines Incorporated 3
#8 Jose Paul Francois Moretto 3
#11 Daniel W. Steffen 2
#11 Timothy J. Matzke Caterpillar 2
#13 Marvin Roisland State Farm 1
#13 Josh Steffen Caterpillar 1
#13 Michele R. Ludwig Caterpillar 1
#13 Jonathan Hostetler 1
#13 Robert O. Schertz 1
#13 Christian S. Porzelius 1
#13 Steve Skrzypczynski State Farm 1
#13 Kurt Jackson Caterpillar 1
#13 Stephen T. Konwinski Caterpillar 1

Part of Illinois