Showing 1–9 of 9 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Robert Zimmerman | Cetus | 2 |
| 1 | Dennis J. Helfritch | Research-Cottrell | 2 |
| 3 | Samuel L. Coleman | — | 1 |
| 3 | Mark Nash | Novartis Ag | 1 |
| 3 | Alvy Cook | — | 1 |
| 3 | Calvin L. Carstensen | — | 1 |
| 3 | Kenneth F. Eberle | — | 1 |
| 3 | Jerry L. Halvorson | — | 1 |
| 3 | David Langerman | South Dakota Board Of Regents | 1 |
Part of South Dakota