Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5125427 | Freeze-thaw method for temporarily plugging process flowline | Lisa A. Cantu | 1992-06-30 |
| 4997041 | Method for selectively operating a wireline tool releasing device | — | 1991-03-05 |
| 4909321 | Wireline releasing device | — | 1990-03-20 |
| 4669555 | Downhole circulation pump | — | 1987-06-02 |