Showing 1–14 of 14 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Robert H. Casterton | John Deere | 1 |
| 1 | Galen C. Beier | — | 1 |
| 1 | Brian A. Ahlschwede | John Deere | 1 |
| 1 | Darrell L. Wright | John Deere | 1 |
| 1 | Ivan L. Petrie | John Deere | 1 |
| 1 | Saul Herscovici | Power Engineering & Mfg. | 1 |
| 1 | Larry Phippen | John Deere | 1 |
| 1 | David L. Koehler | John Deere | 1 |
| 1 | Gene A. Flint | Unknown | 1 |
| 1 | Andrew B. Hesler | — | 1 |
| 1 | Mert L. Wolf | — | 1 |
| 1 | Dwight D. Zobel | — | 1 |
| 1 | Steven A. Reich | John Deere | 1 |
| 1 | Keith Baker | John Deere | 1 |
Part of Iowa