Top Inventors at Ntdrill Holdings All Time
Showing 1–9 of 9 inventors
| Rank | Name | Patents |
|---|---|---|
| 1 | Christian Leuchtenberg | 6 |
| 2 | Earl Dietrich | 5 |
| 3 | Glen H. Cuiper | 2 |
| #4 | Daniel Sabelko | 1 |
| #4 | Ian Richard Knight | 1 |
| #4 | Jeffrey S. Meister | 1 |
| #4 | Nicolas A. Haugen | 1 |
| #4 | Philip J. Engelman | 1 |
| #4 | Ricardo Gonzalez | 1 |