Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6722432 | Slimhole fluid tester | Christopher W. Spiers, Dinesh R. Patel | 2004-04-20 |
| 6598682 | Reservoir communication with a wellbore | Ashley Bernard Johnson, James E. Brooks, Lawrence A. Behrmann, Adinathan Venkitaraman, Ian C. Walton +3 more | 2003-07-29 |
| 6588508 | Method and apparatus to reduce trapped pressure in a downhole tool | Robert A. Parrott, Haoming Li, Cynthia L. Hickson, Harry B. Anderson, John Corben | 2003-07-08 |
| 6293344 | Retainer valve | Vance Nixon, Gary L. Rytlewski | 2001-09-25 |
| 6244351 | Pressure-controlled actuating mechanism | Dinesh R. Patel | 2001-06-12 |
| 5320183 | Locking apparatus for locking a packer setting apparatus and preventing the packer from setting until a predetermined annulus pressure is produced | Laurent E. Muller | 1994-06-14 |