Patent Explorer
Browse, filter, and analyze 10 patents across global jurisdictions.
| Patent Number | Title | Assignee | Status | Filing Date | Grant Date | Expires | Remaining | Claims | Actions |
|---|---|---|---|---|---|---|---|---|---|
| US4355310A | Well logging communication system | Schlumberger Technology Corp | Expired / Lapsed | 1979-08-06 | 1982-10-19 | 1999-08-06 | 0.0 yrs | 36 | |
| US4267727A | Pressure and temperature compensation means for a downhole force measuring device | Schlumberger Technology Corp | Expired / Lapsed | 1979-09-21 | 1981-05-19 | 1999-09-21 | 0.0 yrs | 6 | |
| US4012712A | System for telemetering well logging data | Schlumberger Technology Corp | Expired / Lapsed | 1975-03-31 | 1977-03-15 | 1995-03-31 | 0.0 yrs | 24 | |
| US3967647A | Subsea control valve apparatus | Schlumberger Technology Corp | Expired / Lapsed | 1974-04-22 | 1976-07-06 | 1994-04-22 | 0.0 yrs | 25 | |
| US3909603A | Method of processing production well logging data | Schlumberger Technology Corp | Expired / Lapsed | 1971-08-11 | 1975-09-30 | 1991-08-11 | 0.0 yrs | 26 | |
| US3707700A | Telemetry system incorporating synchromization of receiver with transmitter | Schlumberger Technology Corp | Expired / Lapsed | 1969-08-21 | 1972-12-26 | 1989-08-21 | 0.0 yrs | 13 | |
| US3599156A | Methods and apparatus for transmitting data between remote locations | Schlumberger Technology Corp | Expired / Lapsed | 1968-02-06 | 1971-08-10 | 1988-02-06 | 0.0 yrs | 56 | |
| US3457544A | Methods and apparatus for recording well logging data | Schlumberger Technology Corp | Expired / Lapsed | 1968-02-06 | 1969-07-22 | 1988-02-06 | 0.0 yrs | 0 | |
| US3388375A | Magnetic tape recording methods and apparatus for well logging | Schlumberger Technology Corp | Expired / Lapsed | 1965-10-26 | 1968-06-11 | 1985-10-26 | 0.0 yrs | 0 | |
| US3329931A | Methods and systems for recording and processing well logging data | Schlumberger Technology Corp | Expired / Lapsed | 1962-12-20 | 1967-07-04 | 1982-12-20 | 0.0 yrs | 2 |