Showing 1–5 of 5 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Steven Frederick Kohagen | Waterloo Industries | 2 |
| 2 | Douglas Larry Staines | John Deere | 1 |
| 2 | Timothy J. Kilworth | John Deere | 1 |
| 2 | Kendall L. Giesmann | John Deere | 1 |
| 2 | Paul D. Miller | Gilbarco | 1 |
Part of Iowa