Showing 1–8 of 8 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Johan P. Barnard | — | 3 |
| 1 | Wynand J. van der Westhuizen | Boart International, Limited | 3 |
| 3 | Wolfgang E. Schedel | — | 1 |
| 3 | Alister R. F. MacDonald | Allied Colloids Limited | 1 |
| 3 | Jan H. A. Grobler | — | 1 |
| 3 | Solomon Joel Tucker | — | 1 |
| 3 | Schalk Willem Pienaar | — | 1 |
| 3 | Arthur Shields Van Rooyen | — | 1 |