Showing 1–6 of 6 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Ethen D. Wentz | Unknown | 10 |
| 2 | Walter R. Fair, Jr. | Unknown | 8 |
| 3 | Kaleb Stepanek | Kolberg-Pioneer | 2 |
| #4 | Rhinhold J. Zeeb | — | 1 |
| #4 | Jeremy W. Handel | Vermeer Manufacturing | 1 |
| #4 | Daniel L. Crick | — | 1 |
Part of South Dakota