Compteurs Schlumberger SA
CompteursActive Patents
0
Total Holdings
33
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| GB463330A | Improvements in or relating to the transmission and recepti… | Expired / Lapsed | 1935-06-22 | — | 0 | Details |
| GB437539A | Improvements in or relating to signalling systems wherein t… | Expired / Lapsed | 1934-06-18 | — | 0 | Details |
| GB198691A | Improvements in or relating to gas flow meters | Expired / Lapsed | 1923-06-01 | — | 0 | Details |
| US3852722A | Improved static remote-control relay selection system | Expired / Lapsed | 1973-06-28 | 1974-12-03 | 2 | Details |
| US3792928A | Fiber optics distance converting technique | Expired / Lapsed | 1972-02-28 | 1974-02-19 | 26 | Details |
| US3778619A | Input connections for differential amplifiers | Expired / Lapsed | 1972-03-22 | 1973-12-11 | 6 | Details |
| US3778157A | Optical distance converter | Expired / Lapsed | 1971-11-04 | 1973-12-11 | 11 | Details |
| US3761878A | Installation for reading at a distance information in local… | Expired / Lapsed | 1972-02-11 | 1973-09-25 | 10 | Details |
| US3746452A | Device for determining the transparency of the atmosphere | Expired / Lapsed | 1969-09-03 | 1973-07-17 | 9 | Details |
| US3714545A | Current transformer connection control | Expired / Lapsed | 1972-04-18 | 1973-01-30 | 7 | Details |
| US3656348A | Pressure measuring devices of the electrical counterbalanci… | Expired / Lapsed | 1970-07-28 | 1972-04-18 | 8 | Details |
| FR92558E | Astatic optical device for transmitting an electrical signal | Expired / Lapsed | 1967-02-07 | 1968-11-29 | 0 | Details |
| US3329821A | Method and device for measuring the amplitude ratio of two … | Expired / Lapsed | 1963-11-04 | 1967-07-04 | 2 | Details |
| US3146293A | Measuring the mean density of the atmosphere | Expired / Lapsed | 1961-02-20 | 1964-08-25 | 2 | Details |
| FR1126505A | Electric micromanometer | Expired / Lapsed | 1955-05-12 | 1956-11-26 | 0 | Details |
| FR1110024A | Device for measuring the specific mass of a fluid | Expired / Lapsed | 1954-08-23 | 1956-02-06 | 0 | Details |
| FR1004276A | Cathodic oscillograph with permanent registration | Expired / Lapsed | 1947-03-28 | 1952-03-27 | 0 | Details |
| FR934544A | Improvements to pilot control devices using a cathode-ray o… | Expired / Lapsed | 1946-09-26 | 1948-05-25 | 0 | Details |
| FR873623A | Improvement in television receivers | Expired / Lapsed | 1941-02-28 | 1942-07-15 | 0 | Details |
| FR864375A | Device for the representation of obstacles | Expired / Lapsed | 1939-10-19 | 1941-04-25 | 0 | Details |
| FR856495A | Application to hydraulic machines of agglutinated metal pow… | Expired / Lapsed | 1939-03-01 | 1940-06-14 | 0 | Details |
| FR846239A | Optical altimeter | Expired / Lapsed | 1938-11-19 | 1939-09-12 | 0 | Details |
| US2143933A | Television receiver | Expired / Lapsed | 1935-01-16 | 1939-01-17 | 0 | Details |
| US2142541A | Protection for electric distribution systems | Expired / Lapsed | 1935-09-19 | 1939-01-03 | 0 | Details |
| FR805769A | Differential protection devices for direct current lines an… | Expired / Lapsed | 1936-05-02 | 1936-11-28 | 0 | Details |
| FR792921A | Improvements to electric welders | Expired / Lapsed | 1935-07-25 | 1936-01-13 | 0 | Details |
| US1996145A | Device for receiving high frequency currents superimposed o… | Expired / Lapsed | 1933-01-19 | 1935-04-02 | 0 | Details |
| US1957010A | Multiple tariff metering system | Expired / Lapsed | 1933-01-19 | 1934-05-01 | 0 | Details |
| FR660528A | Multi-cell roots compressor for high pressures | Expired / Lapsed | 1928-09-17 | 1929-07-12 | 0 | Details |
| FR548159A | Rectilinear coordinate recorder | Expired / Lapsed | 1922-03-03 | 1923-01-09 | 0 | Details |
| FR546233A | Calorimeter recording the calorific value of a gas | Expired / Lapsed | 1922-01-21 | 1922-11-03 | 0 | Details |
| US1036233A | Bellows for dry gas-meters. | Expired / Lapsed | 1911-05-06 | 1912-08-20 | 0 | Details |
| US842314A | Pyrometer. | Expired / Lapsed | 1905-11-11 | 1907-01-29 | 0 | Details |