Showing 1–6 of 6 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | John L. White | American Piledriving Equipment | 1 |
| 1 | John G. Allison | — | 1 |
| 1 | Joe N. Herron; | P.H. Glatfelter | 1 |
| 1 | Jerome E. Retzer | — | 1 |
| 1 | Henry Cook | E.I. Du Pont De Nemours And | 1 |
| 1 | Willem D. Veenhof | Martin Engineering | 1 |
Part of North Carolina