Showing 1–8 of 8 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Michael C. Ryan | Unknown | 29 |
| 2 | Stephen L. Wahls | Orthman Manufacturing | 7 |
| 3 | Sara Katherine Etter | Accelerated Ag Technologies | 5 |
| #4 | Kedar M. Morarka | Frye Copysystems | 2 |
| #5 | C. Dale Hoing | — | 1 |
| #5 | Jerry D. Pitman | Townsend Industries | 1 |
| #5 | Bradley VanHeeswyk | — | 1 |
| #5 | William G. Phelps | — | 1 |
Part of Iowa