Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4845981 | System for monitoring fluids during well stimulation processes | — | 1989-07-11 |
| 4821564 | Method and system for determining fluid pressures in wellbores and tubular conduits | Fevzi Zeren, Ahmed S. Abou-Sayed | 1989-04-18 |