Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7918273 | Top drive casing system | Randy Gene Snider, David Shahin, John Timothy Allen, Kevin L. Gray | 2011-04-05 |
| 7874352 | Apparatus for gripping a tubular on a drilling rig | Albert C. Odell, II, Richard L. Giroux, Tuong Thanh Le, Karsten Heidecke, Joerg Lorenz +3 more | 2011-01-25 |