Showing 1–8 of 8 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Harold E. deBuhr | John Deere | 1 |
| 1 | Sidney J. Boushek, Jr. | John Deere | 1 |
| 1 | Walter W. Booker | John Deere | 1 |
| 1 | Joseph J. Shindelar | John Deere | 1 |
| 1 | Clarence C. Bennink | John Deere | 1 |
| 1 | Wendell C. Hunt | Iowa State University | 1 |
| 1 | James F. Mank | US Army | 1 |
| 1 | Michael Joseph Verhulst | John Deere | 1 |
Part of Iowa