Showing 1–5 of 5 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Mark Ekern | — | 6 |
| 2 | Rick Schaefer | Gse Lining Technology | 3 |
| 3 | Arnold R. Hippen | Iowa State University | 2 |
| #4 | Arnold M. Eich | — | 1 |
| #4 | Ardean R. Albers | Larson Manufacturing | 1 |
Part of South Dakota