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, Gary Thompson | 2011-04-05 |
| 7878242 | Interface for deploying wireline tools with non-electric string | — | 2011-02-01 |