Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9637985 | Packer release compaction joint | Colby M. Ross | 2017-05-02 |
| 9500056 | Weight down collet for a downhole service tool | Thomas Jules Frosell | 2016-11-22 |
| 9297232 | Reclosable multi zone isolation tool and method for use thereof | William David Henderson, Douglas Allen Schafer | 2016-03-29 |
| 8757275 | Reclosable multi zone isolation tool and method for use thereof | William David Henderson, Douglas Allen Schafer | 2014-06-24 |
| 5007479 | Hydraulic up-down well jar and method of operating same | Charles W. Pleasants | 1991-04-16 |
| 4954472 | Temperature activated catalysts for liquid polymer cures | Bryan G. Willoughby | 1990-09-04 |