Showing 1–6 of 6 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Dana J. Maas | Dakota Gasification | 4 |
| 2 | Wesley Drew Marr | Welland Industrial Co. | 2 |
| 3 | Thomas W. Heckaman | — | 1 |
| 3 | Blair S. Trout | — | 1 |
| 3 | Scott A. Wolff | — | 1 |
| 3 | Gary R. Van Vleet | — | 1 |
Part of North Dakota