Showing 1–14 of 14 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | David D. Kragten | Unimin | 9 |
| 2 | Curtis Berry | Jamison Door | 6 |
| 3 | Larry E. Bowen | — | 3 |
| #4 | Richard Schnurr | Mack Trucks | 2 |
| #4 | Paul Romsburg, Sr. | — | 2 |
| #4 | Christopher J. Manzini | — | 2 |
| #4 | Paul Romsburg, Jr. | — | 2 |
| #8 | Jesse H. Lawhorne, Jr. | — | 1 |
| #8 | Charles K. Potts | — | 1 |
| #8 | Andrew Dubnik | — | 1 |
| #8 | Shirley Sharer | — | 1 |
| #8 | John D Britner | — | 1 |
| #8 | Vernon L. Wiles | Jamison Door | 1 |
| #8 | John C. Honoshowsky | — | 1 |
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