Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4671352 | Apparatus for selectively injecting treating fluids into earth formations | Marvin Bryce Traweek | 1987-06-09 |
| 4638860 | Apparatus for blocking communication between well bore intervals | Marvin Bryce Traweek | 1987-01-27 |
| 4493374 | Hydraulic setting tool | — | 1985-01-15 |