Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7204305 | System and method for installing a liner in a borehole | Allen Ricalton | 2007-04-17 |
| 6640824 | Mud saver kelly valve | — | 2003-11-04 |
| 6364039 | Vibration damping tool | — | 2002-04-02 |
| 6289911 | Mud saver kelly valve | — | 2001-09-18 |
| 6213229 | Drilling motor drill bit reaming stabilizer | — | 2001-04-10 |
| 5474143 | Drill bit reamer stabilizer | — | 1995-12-12 |