Showing 1–18 of 18 inventors
| Rank | Inventor | Primary Company | Patents |
|---|---|---|---|
| 1 | Jan Kruyer | — | 12 |
| 2 | Gerald Brodrecht | — | 5 |
| 3 | Dale W. MacKenzie | — | 4 |
| #4 | J. Scott Roberts | — | 3 |
| #5 | Jason R. Cunningham | National Oilwell Varco | 2 |
| #5 | Richard Jackson | Oilfield Equipment Development Center Limited | 2 |
| #5 | George Klein | Chevron | 2 |
| #8 | Edmond Fouillard | — | 1 |
| #8 | Darrel Grove | — | 1 |
| #8 | Frank Clarence Pittman | Unknown | 1 |
| #8 | Rueben Halwa | — | 1 |
| #8 | James Harold Eugene Squire | — | 1 |
| #8 | Rose Hoshowski | — | 1 |
| #8 | Bradley Anthony Simpson | — | 1 |
| #8 | Kevin Melvin Kjelland | — | 1 |
| #8 | Charles Robert Knights | — | 1 |
| #8 | Sulayman Adeyemi Oladepo | KFUPM | 1 |
| #8 | Lance Christopher Hayman | — | 1 |