Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5687795 | Packer locking apparatus including a time delay apparatus for locking a packer against premature setting when entering a liner in a wellbore | Dinesh R. Patel | 1997-11-18 |
| 5361839 | Full bore sampler including inlet and outlet ports flanking an annular sample chamber and parameter sensor and memory apparatus disposed in said sample chamber | Michael J. Griffith | 1994-11-08 |
| 5058673 | Hydraulically set packer useful with independently set straddle packers including an inflate/deflate valve and a hydraulic ratchet associated with the straddle packers | Laurent E. Muller, James M. Upchurch | 1991-10-22 |
| 5020592 | Tool for treating subterranean wells | Laurent E. Muller | 1991-06-04 |
| 4913231 | Tool for treating subterranean wells | Laurent E. Muller | 1990-04-03 |