Showing 1–20 of 20 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Richard A. Armell | Smith International | 13 |
| 2 | Rory Archibald Napier | Halliburton Energy Services | 5 |
| 3 | David Coull | National Oilwell Varco | 4 |
| #4 | Brian P. Manzi | Otis Engineering | 2 |
| #4 | William S. Strachan | Glaxo Group Limited | 2 |
| #4 | Anthony S. Bamford | — | 2 |
| #4 | James Penman | Aberdeen University | 2 |
| #8 | Abhay Vadher | — | 1 |
| #8 | Malcolm George Vie | Aps Technology | 1 |
| #8 | Jack James Cavanagh | Baker Hughes Energy Technology Uk Limited | 1 |
| #8 | Gordon B. Duncan | Schlumberger Technology | 1 |
| #8 | Calum Strachan | Glaxo Wellcome | 1 |
| #8 | Graham Timothy Illing | Glaxo Group Limited | 1 |
| #8 | Wilson A. Crichton | Abb Vetco Gray | 1 |
| #8 | Ivan K. Slaughter | Otis Engineering | 1 |
| #8 | Thomas McCreadie | Hughes Tool Company | 1 |
| #8 | Steven A. Burton | — | 1 |
| #8 | Eric R. McK. Ladbrook | Otis Engineering | 1 |
| #8 | Paul Raymond Coey | — | 1 |
| #8 | Alan Larnach | Chevron | 1 |