Showing 1–1 of 1 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | John D. Preheim | Raven Industries | 4 |
Part of South Dakota
4 patents · 1 inventors
Ranked #16,058 of 44,998 cities Top 40%
Showing 1–1 of 1 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | John D. Preheim | Raven Industries | 4 |
Part of South Dakota