Showing 1–17 of 17 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Jonathan L. Engelstad | John Deere | 2 |
| 1 | Douglas L. Bonstead | Deflecta Shield | 2 |
| 3 | Russell D. Copley | John Deere | 1 |
| 3 | Steve H. McBee | John Deere | 1 |
| 3 | William R. Saelens | — | 1 |
| 3 | Jeffrey J. Postal | John Deere | 1 |
| 3 | Arthur L. Hubbard | John Deere | 1 |
| 3 | David E. Eckels | Iowa State University | 1 |
| 3 | Ronald M. Steilen | John Deere | 1 |
| 3 | Gary L. Osborne | — | 1 |
| 3 | Warren L. Tompson | John Deere | 1 |
| 3 | Pichai Saichaie | — | 1 |
| 3 | Phillip E. Stevens | John Deere | 1 |
| 3 | Kenneth L. Miller | Atricure | 1 |
| 3 | Virgil Dean Haverdink | John Deere | 1 |
| 3 | John D. Long | John Deere | 1 |
| 3 | Joel M. Schreiner | John Deere | 1 |
Part of Iowa