Pgac Dev Co
Pgac Dev CActive Patents
0
Total Holdings
5
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| US3172036A | Method and apparatus including capacitor circuit storage me… | Expired / Lapsed | 1960-11-15 | 1965-03-02 | 1 | Details |
| US3149304A | Systems for acoustic velocity logging of earth formations | Expired / Lapsed | 1959-06-08 | 1964-09-15 | 2 | Details |
| US3148352A | Acoustic velocity bore hole logging systems and apparatus | Expired / Lapsed | 1959-06-08 | 1964-09-08 | 1 | Details |
| US2967272A | Electrical well logging | Expired / Lapsed | 1957-03-27 | 1961-01-03 | 0 | Details |
| US2949535A | Nuclear well logging method and apparatus | Expired / Lapsed | 1955-02-09 | 1960-08-16 | 2 | Details |