Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 7249633 | Release tool for coiled tubing | John Ravensbergen, Andre Naumann, Lubos Vacik, Graham Wilde | 2007-07-31 | $48,463,000 |
| 6832654 | Bottom hole assembly | John Ravensbergen, Andre Naumann, Lubos Vacik, Graham Wilde | 2004-12-21 | $17,847,000 |