Showing 1–5 of 5 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | James R. Trinkle | Cargill, Incorporated | 9 |
| 2 | Kent P. Thoreson | Vermeer Manufacturing | 3 |
| 3 | Scott Edward Gangel | Vermeer Manufacturing | 1 |
| 3 | James Van Polen | — | 1 |
| 3 | Michael Lenger | Vermeer Manufacturing | 1 |
Part of Iowa