Issued Patents 2011
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8047283 | Torque sub for use with top drive | Michael Jahn, Bernd-Georg Pietras | 2011-11-01 |
| 8020627 | Equalized load distribution slips for spider and elevator | David Shahin | 2011-09-20 |
| 7967073 | Control line running system | Doyle Frederic Boutwell, Jr., Kevin Wood, Bernd-Georg Pietras | 2011-06-28 |
| 7926577 | Methods and apparatus for supporting tubulars | Benson Thomas, Delaney Michael Olstad, Michael Hayes, Doyle Frederic Boutwell, Jr. | 2011-04-19 |
| 7874352 | Apparatus for gripping a tubular on a drilling rig | Albert C. Odell, II, Richard L. Giroux, Tuong Thanh Le, Gary Thompson, Joerg Lorenz +3 more | 2011-01-25 |