Showing 1–18 of 18 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Andrew J. Tonsor | Caterpillar | 4 |
| 2 | Samuel B. Stevens | Caterpillar | 3 |
| 3 | Jerry D. Fidler | Caterpillar | 2 |
| #4 | Jerald M. Homan | — | 1 |
| #4 | Gerald D. Hardy | Caterpillar | 1 |
| #4 | William J. Brouch | — | 1 |
| #4 | Steven A. Lyle | USDA | 1 |
| #4 | Dale E. Gerber | — | 1 |
| #4 | Raymond A. Bianchi | Caterpillar | 1 |
| #4 | George F. Alexander | Caterpillar | 1 |
| #4 | Harold A. Baker | Caterpillar | 1 |
| #4 | Kenneth F. Golan | Caterpillar | 1 |
| #4 | Willis E. Windish | Caterpillar | 1 |
| #4 | David E. Bowman | Caterpillar | 1 |
| #4 | Dean Miller | Caterpillar | 1 |
| #4 | James R. Jeffries | Unknown | 1 |
| #4 | Thomas M. Sopko | Caterpillar | 1 |
| #4 | Lawrence P. Heren | L.R. Nelson | 1 |
Part of Illinois