Showing 1–5 of 5 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Lester C. Larson, Jr. | Rock River Arms | 4 |
| 2 | James K. Adamson | John Deere | 2 |
| 3 | Tom McCubbin | Rock River Arms | 1 |
| 3 | Garrett M. Stroot | John Deere | 1 |
| 3 | Krzysztof Klimaszewski | Amano Enzyme | 1 |
Part of Illinois