Showing 1–7 of 7 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | André Hognestad | — | 2 |
| 1 | Ole A. Heggdal | Aker Solutions As | 2 |
| 3 | Tore Sørheim | Dreco Energy Services Ulc | 1 |
| 3 | Endre Birkeland | — | 1 |
| 3 | Arnt Olav Dahl | Hydra Systems As | 1 |
| 3 | Anders K. Nesheim | Baker Hughes Holdings | 1 |
| 3 | Ken Erik Steine | Ace Oil Tools As | 1 |