Showing 1–6 of 6 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Michael G. Rush | Cobalt | 2 |
| 2 | John Lawrence Quinlain | Tyson Foods | 1 |
| 2 | Pansouvanh Douangdara | Tyson Foods | 1 |
| 2 | Donald William Bremer | Sioux City Tarp | 1 |
| 2 | Terry L. Berg | Sioux City Tarp | 1 |
| 2 | John M. Dolphin | Gelita Ag | 1 |
Part of Iowa