Showing 1–20 of 20 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Eugene G. Sukup | Sukup Manufacturing | 31 |
| 2 | Casey Scott Heilskov | Sukup Manufacturing | 7 |
| 3 | Paul L. Klassy | — | 3 |
| 3 | Keith Hansen | — | 3 |
| 3 | Jeffrey A. Crosser | Caterpillar | 3 |
| 3 | Brett A. Nelson | Sukup Manufacturing | 3 |
| 3 | Jerome L. Clock | Aeron Lifestyle Technology | 3 |
| #8 | Larry F. Jurgena | Sukup Manufacturing | 2 |
| #8 | Richard S. Salvesen | — | 2 |
| #8 | Chris Heilskov | Sukup Manufacturing | 2 |
| #11 | Donald D. Schwebke | — | 1 |
| #11 | Leonard A. Berghoefer | — | 1 |
| #11 | Dale R. Dodd | Sukup Manufacturing | 1 |
| #11 | Emily N Horn | John Deere | 1 |
| #11 | Marvin K. Carr | — | 1 |
| #11 | Cheryl D. Smith | — | 1 |
| #11 | Larry R. Spear | — | 1 |
| #11 | Randall M. Poock | Sukup Manufacturing | 1 |
| #11 | Ray G. Jorgensen | — | 1 |
| #11 | Larry J. Bender | — | 1 |
Part of Iowa