Issued Patents 1994
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5337827 | Pressure-controlled well tester adapted to be selectively retained in a predetermined operating position | Joe C. Hromas | 1994-08-16 |
| 5303872 | Transportable battery disposal unit | Marvin Milewits, Baldemar Fuentes | 1994-04-19 |
| 5275241 | Circulating valve apparatus and drill stem test method allowing selective fluid communication between an above packer annulus and a rathole | Andrew W. Vigor, Adrian J. Stewart | 1994-01-04 |