Showing 1–5 of 5 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Eric R. Hansen | Ash Grove Cement | 41 |
| 2 | Roger Hansen | Microsoft | 2 |
| 2 | Verlyn Hybertson | — | 2 |
| 2 | Delmer L. Hybertson | — | 2 |
| #5 | Kenton Neal Norin | — | 1 |
Part of South Dakota
48 patents · 5 inventors
Ranked #24,743 of 111,555 cities Top 25%
Showing 1–5 of 5 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Eric R. Hansen | Ash Grove Cement | 41 |
| 2 | Roger Hansen | Microsoft | 2 |
| 2 | Verlyn Hybertson | — | 2 |
| 2 | Delmer L. Hybertson | — | 2 |
| #5 | Kenton Neal Norin | — | 1 |
Part of South Dakota