Showing 1–9 of 9 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | John A. Bambacigno | Unknown | 10 |
| 2 | W. James Spickelmire | Unknown | 8 |
| 3 | James Spickelmire | Unknown | 6 |
| #4 | William James Spickelmire | — | 1 |
| #4 | Bernard F. Romain | — | 1 |
| #4 | Gerald F. Alm | — | 1 |
| #4 | Arie Koole | — | 1 |
| #4 | Gordon Laymance | — | 1 |
| #4 | Jack Cuddy | — | 1 |
Part of Idaho