Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7249633 | Release tool for coiled tubing | John Ravensbergen, Andre Naumann, Lubos Vacik, Graham Wilde | 2007-07-31 |
| 6832654 | Bottom hole assembly | John Ravensbergen, Andre Naumann, Lubos Vacik, Graham Wilde | 2004-12-21 |