Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9074437 | Actuation and release tool for subterranean tools | Jason C. Stingerie, David L. Nevels | 2015-07-07 |
| 8517114 | Mechanical lock with pressure balanced floating piston | David L. Nevels | 2013-08-27 |
| 7784797 | Seal and slip assembly for expandable downhole tools | John L. Baugh | 2010-08-31 |
| 5437330 | Liner cementing system and method | — | 1995-08-01 |
| 5195586 | Right-hand on and right-hand off retrieving head | — | 1993-03-23 |
| 5154228 | Valving system for hurricane plugs | Michael J. Loughlin, Louis E. West, Jr. | 1992-10-13 |
| 5146993 | Packing mechanism for subterranean wells | — | 1992-09-15 |
| 4694878 | Disconnect sub for a tubing conveyed perforating gun | — | 1987-09-22 |
| 4648470 | Firing head for a tubing conveyed perforating gun | — | 1987-03-10 |
| 4616718 | Firing head for a tubing conveyed perforating gun | — | 1986-10-14 |