Showing 1–6 of 6 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Nicolaas Bodenstein Goodwin | — | 3 |
| 2 | Abraham Van Zyl Brink | Csir | 2 |
| 2 | Daniel Coenraad Pretorius | — | 2 |
| 2 | Johan G. Grabe | Boart International, Limited | 2 |
| #5 | Marius S. Strydom | — | 1 |
| #5 | Elardus Erasmus | Csir | 1 |