Showing 1–7 of 7 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Norbert Sonnek | — | 2 |
| 1 | Harlan Halvorson, deceased | — | 2 |
| 1 | Harvey L. Loke | — | 2 |
| 1 | Elwyn J. Erickson | — | 2 |
| #5 | Edward S. Hubbard | — | 1 |
| #5 | Gordon M. Lutteke | — | 1 |
| #5 | Martin T. Lutteke | — | 1 |
Part of Minnesota