Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7174958 | Drill string member | — | 2007-02-13 |
| 6742584 | Apparatus for facilitating the connection of tubulars using a top drive | — | 2004-06-01 |
| 6655477 | Friction-reducing drill pipe component | Gholam Hossein Rastegar | 2003-12-02 |
| 6325122 | Traction device for vehicle tire | — | 2001-12-04 |
| 6230798 | Inflatable packer | — | 2001-05-15 |
| 5941309 | Actuating ball | — | 1999-08-24 |
| 5806615 | Apparatus for use in a wellbore | — | 1998-09-15 |
| 5479988 | Mud check valves in drilling apparatus (wells) | — | 1996-01-02 |
| 5421421 | Apparatus for directional drilling | — | 1995-06-06 |
| 4545432 | Device for retrieving objects from wells | — | 1985-10-08 |