Showing 1–1 of 1 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Eric R. Hansen | Ash Grove Cement | 2 |
Part of South Dakota
2 patents · 1 inventors · 2.2/1k pop.
Ranked #14,702 of 30,370 cities Top 50%
Showing 1–1 of 1 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Eric R. Hansen | Ash Grove Cement | 2 |
Part of South Dakota