Showing 1–6 of 6 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | William J. McDonald | James Mackie & Sons Limited | 7 |
| 2 | J. Keith Kelly | — | 5 |
| 3 | David Ware | Rotork Controls Limited | 4 |
| #4 | Larry Dean Alder | Purewick | 2 |
| #5 | Joseph T. Webb | — | 1 |
| #5 | Paul Harrell | — | 1 |
Part of Georgia