Showing 1–8 of 8 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Curtis D. Fast | Unknown | 6 |
| 2 | Trent J. Hoek | — | 4 |
| 3 | Neil K. Wenner | — | 2 |
| #4 | Darrell L. Dick | — | 1 |
| #4 | Dwayne P. Wipf | — | 1 |
| #4 | Abram P. Balzer | — | 1 |
| #4 | Donald Olfert | Kennel-Aire | 1 |
| #4 | Stanley A. Friesen | — | 1 |
Part of Minnesota