Showing 1–8 of 8 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Ben F. Conkey | Putco | 4 |
| 2 | Nick Merfeld | Gary W. Clem | 2 |
| 3 | Gary Clem | Gary W. Clem | 1 |
| 3 | Arlan W. Sandvik | Gary W. Clem | 1 |
| 3 | Scott A. Sporrer | Gary W. Clem | 1 |
| 3 | Fred M. Tatum | Biotechnology Research And Development | 1 |
| 3 | Mitchell Palmer | USDA | 1 |
| 3 | Charles L. DePenning | Fisher Controls International | 1 |
Part of Iowa