Services Petroliers Schlumberger SA
Services PActive Patents
0
Total Holdings
9
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| FR2188044B1 | FR2188044B1 - - Google Patents | Expired / Lapsed | 1973-05-03 | 1975-12-26 | 0 | Details |
| US3406776A | Acoustic method and apparatus for examining formations adja… | Expired / Lapsed | 1965-03-23 | 1968-10-22 | 2 | Details |
| US3340464A | Induction investigation apparatus having time shared operat… | Expired / Lapsed | 1963-07-03 | 1967-09-05 | 2 | Details |
| US3279249A | Apparatus for testing fluid mixtures | Expired / Lapsed | 1963-01-28 | 1966-10-18 | 0 | Details |
| US3277440A | Methods and apparatus for recording well logging data on ma… | Expired / Lapsed | 1963-09-30 | 1966-10-04 | 2 | Details |
| US3274576A | Telemetering encoder system | Expired / Lapsed | 1962-06-04 | 1966-09-20 | 2 | Details |
| FR855599A | Method and devices for measuring quantities inside a boreho… | Expired / Lapsed | 1938-12-16 | 1940-05-15 | 0 | Details |
| US1980100A | Electromagnetic process for surveying the deviations of dri… | Expired / Lapsed | 1932-01-23 | 1934-11-06 | 0 | Details |
| US1819923A | Electrical process and apparatus for the determination of t… | Expired / Lapsed | 1929-06-06 | 1931-08-18 | 0 | Details |