Showing 1–9 of 9 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Bruce A. Baier | Pella | 3 |
| 2 | Bruce Hagemeyer | Amesbury Group | 2 |
| 3 | Daryl W. Van Zee | Vermeer Manufacturing | 1 |
| 3 | Fred L. Hrdlicka | Pella | 1 |
| 3 | Merlan J. Rolffs | Kinze Manufacturing | 1 |
| 3 | Peter C. Rozendaal | Vermeer Manufacturing | 1 |
| 3 | John Scharff | Pella | 1 |
| 3 | Roger L. Stoll | The Enduro | 1 |
| 3 | Peter James Fritz | GE | 1 |
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