Showing 1–4 of 4 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Ralph Heinzen | — | 8 |
| 2 | Craig R. Fischer | Aquatron | 1 |
| 2 | Bruce W. Pigeon | — | 1 |
| 2 | Joseph D. Flath | Great River Energy | 1 |
Part of North Dakota
11 patents · 4 inventors · 7.5/1k pop.
Ranked #51,096 of 111,555 cities Top 50%
Showing 1–4 of 4 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Ralph Heinzen | — | 8 |
| 2 | Craig R. Fischer | Aquatron | 1 |
| 2 | Bruce W. Pigeon | — | 1 |
| 2 | Joseph D. Flath | Great River Energy | 1 |
Part of North Dakota