Top Inventors at Jarraff Industries All Time
| Rank | Name | Patents |
|---|---|---|
| 1 | James B. Prohaska | 3 |
| 2 | Jacob Schmotter | 3 |
| 3 | Lee Stephen Boyum | 2 |
| #4 | George A. Boyum | 1 |
| #5 | Ralph E. Lovelace | 1 |
| #6 | Robert A. Renner | 1 |
| Rank | Name | Patents |
|---|---|---|
| 1 | James B. Prohaska | 3 |
| 2 | Jacob Schmotter | 3 |
| 3 | Lee Stephen Boyum | 2 |
| #4 | George A. Boyum | 1 |
| #5 | Ralph E. Lovelace | 1 |
| #6 | Robert A. Renner | 1 |