Showing 1–5 of 5 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Timothy L. Sullivan | Phoenix Environmental Reclamation | 5 |
| 1 | William Hendricks | Laser Elevations | 5 |
| 3 | Edward L. Melgeorge | — | 2 |
| #4 | Virgil C. Rostvold | The Hanna Mining | 1 |
| #4 | Patricia A. Derfler | — | 1 |
Part of Minnesota