Showing 1–4 of 4 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Ronald J. Schlimgen | Unverferth Manufacturing Co. | 5 |
| 1 | Michael D. Van Mill | Unverferth Manufacturing Co. | 5 |
| 3 | Wade Goeke | — | 1 |
| 3 | Shoshanna R. Coon | University Of Northern Iowa Research Foundation | 1 |
Part of Iowa