Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7966777 | Mechanical lift, fully nesting, telescoping mast | Timothy A. Douglas, Daniel C. Kennedy, II | 2011-06-28 |
| 7900696 | Downhole tool with exposable and openable flow-back vents | Randall W. Nish | 2011-03-08 |