Showing 1–6 of 6 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Daniel L. Karst | Broan-Nutone | 2 |
| 1 | Christopher J. Butkiewicz | Harley-Davidson Motor Company | 2 |
| 3 | James Ratajczek | Kolpin Outdoors | 1 |
| 3 | Jack E. Arfstrom | John Deere | 1 |
| 3 | Allen F. Swan | Brunswick | 1 |
| 3 | John B. Kuhn | John Deere | 1 |
Part of Wisconsin