Showing 1–13 of 13 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Perry W. Knutson | Rite-Hite Holding | 21 |
| 2 | Michael R. Leibfried | — | 6 |
| 3 | Collin Thole | Rite-Hite Holding | 3 |
| 3 | Robert Paul Dressler | John Deere | 3 |
| 3 | Mark Jordan Schwab | — | 3 |
| #6 | Alvin J. Eissens | — | 2 |
| #6 | Dennis L. Munns | John Deere | 2 |
| #6 | Gary Porter | Illinois Tool Works | 2 |
| #9 | Gerald Weiss | — | 1 |
| #9 | Kurt W. Leibfried | — | 1 |
| #9 | Jon C. Schildgen | John Deere | 1 |
| #9 | Nicholas P. Borkovec | Caterpillar | 1 |
| #9 | Lawrence Muldoon | — | 1 |
Part of Wisconsin