Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7234547 | Apparatus and methods for sponge coring | Bob T. Wilson, Holger Stibbe, Hallvard S. Hatloy | 2007-06-26 |
| 7093676 | Apparatus and methods for sponge coring | Bob T. Wilson, Holger Stibbe, Hallvard S. Hatloy | 2006-08-22 |
| 7055626 | Core bit having features for controlling flow split | Michael R. Wells, Holger Stibbe | 2006-06-06 |
| 6719070 | Apparatus and methods for sponge coring | Bob T. Wilson, Holger Stibbe, Hallvard S. Hatloy | 2004-04-13 |