Showing 1–5 of 5 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Stephen M. Clark | Rockwell Collins | 15 |
| 2 | Kenneth John Kresser | John Deere | 5 |
| 3 | William S. Olson | California Pellet Mill | 2 |
| #4 | Jared F. Leonard | John Deere | 1 |
| #4 | William W. Whitaker | — | 1 |
Part of Iowa