Showing 1–6 of 6 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Gene D. Carlson | Frye Copysystems | 3 |
| 2 | Ronald M. Steilen | John Deere | 2 |
| 3 | Thomas C. Jensen | John Deere | 1 |
| 3 | Phillip E. Stevens | John Deere | 1 |
| 3 | Russell D. Copley | John Deere | 1 |
| 3 | Lester D. Schreiner | John Deere | 1 |
Part of Iowa