Showing 1–7 of 7 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Alfred K. Kuhn | Dakota Gasification | 3 |
| 2 | Hunter Craig Eslinger | Retrax Holdings | 2 |
| 3 | Joseph Keller | — | 1 |
| 3 | Douglas W. Delvo | — | 1 |
| 3 | Kurt M. Swenson | Novita Nutrition | 1 |
| 3 | Earl H. Oster | — | 1 |
| 3 | Brant P. Munson | Dakota Gasification | 1 |
Part of North Dakota