Showing 1–5 of 5 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Willem D. Veenhof | Martin Engineering | 3 |
| 2 | John L. White | American Piledriving Equipment | 2 |
| 2 | James Brian Smith | Pacesetter | 2 |
| #4 | David K Watkins | Keir Manufacturing | 1 |
| #4 | Robert King Pollock | Kiln Drying Systems & Components | 1 |
Part of North Carolina