Showing 1–6 of 6 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Raymond W. Micheel | Fisher Controls International | 9 |
| 2 | Aaron Burchland | — | 3 |
| 2 | Scott E. Kilborn | Lennox Industries | 3 |
| #4 | Glen W. Dillman | — | 1 |
| #4 | Dale E. Locker | — | 1 |
| #4 | Robert A. Louks | — | 1 |
Part of Iowa