Showing 1–10 of 10 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Doyle L. Dugger | Bandag Incorporated | 1 |
| 1 | John T. Garbutt | Grain Processing | 1 |
| 1 | Larry W. Uhre | — | 1 |
| 1 | Ioan A. Burche | Bandag Incorporated | 1 |
| 1 | Rodney L. Hartung | — | 1 |
| 1 | Edwin T. Brodie | Bandag Incorporated | 1 |
| 1 | Fred W. Noller | — | 1 |
| 1 | Elmer M. Deters | The Marley-Wylain | 1 |
| 1 | Byron D. Buchele | H.J. Heinz | 1 |
| 1 | Donald L. Kiser | Grain Processing | 1 |
Part of Iowa