Showing 1–5 of 5 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | David K Watkins | Keir Manufacturing | 4 |
| 1 | Richard L Trent | Keir Manufacturing | 4 |
| 3 | John L. White | American Piledriving Equipment | 2 |
| #4 | John Scott Hutchinson | Emerson Vulcan Holding | 1 |
| #4 | Sahadeva Reddy Damireddi | Pharmagra Labs | 1 |
Part of North Carolina