Showing 1–6 of 6 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Ewan Ogilvie Robb | Halliburton Energy Services | 6 |
| 2 | Fraser James Milne | Balmoral Comtec Limited | 2 |
| 2 | Colin Lander Mountford | Aqualisa Products Limited | 2 |
| #4 | Michael L. Scragg | — | 1 |
| #4 | Christopher Follows | Imi Marston Limited | 1 |
| #4 | Fraser Morrison | Carl Zeiss Smt Gmbh | 1 |