Showing 1–14 of 14 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Landon Linn Ries | Pioneer (Corteva) | 25 |
| 2 | Terry L. Luscombe | — | 7 |
| 3 | Bradley R. Layne | Acuity Brands | 5 |
| #4 | Howard W. Taylor | Art'S-Way Manufacturing | 3 |
| #5 | Scott M. Obbink | — | 2 |
| #6 | Wilma L. Stock | — | 1 |
| #6 | Arthur L. Stock | — | 1 |
| #6 | William J. Kollasch | — | 1 |
| #6 | Anthony R. Wendler | — | 1 |
| #6 | Jana L. Guerdet | — | 1 |
| #6 | Nicholas Obbink | — | 1 |
| #6 | Brian R. Obbink | — | 1 |
| #6 | Michael Sjoblom | Sioux Steel | 1 |
| #6 | Allan D. Lindell | — | 1 |
Part of Iowa