Western Atlas International Inc
Western AtActive Patents
0
Total Holdings
25
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| DE3305478A1 | METHOD AND DEVICE FOR MEASURING BASE VECTORS BY means of RA… | Expired / Lapsed | 1983-02-17 | — | 0 | Details |
| US5640371A | Method and apparatus for beam steering and bessel shading o… | Expired / Lapsed | 1995-11-22 | 1997-06-17 | 47 | Details |
| US5089989A | Method and apparatus for measuring the quality of a cement … | Expired / Lapsed | 1990-10-30 | 1992-02-18 | 2 | Details |
| US4870422A | Method and system for determining position from signals fro… | Expired / Lapsed | 1986-08-11 | 1989-09-26 | 46 | Details |
| US4809005A | Multi-antenna gas receiver for seismic survey vessels | Expired / Lapsed | 1988-01-21 | 1989-02-28 | 10 | Details |
| US4686625A | Method and apparatus for generating a display of well loggi… | Expired / Lapsed | 1984-09-07 | 1987-08-11 | 22 | Details |
| US4628495A | Measuring while drilling apparatus mud pressure signal valve | Expired / Lapsed | 1982-08-09 | 1986-12-09 | 10 | Details |
| US4507553A | Method and apparatus for identifying vanadium in earth form… | Expired / Lapsed | 1982-09-01 | 1985-03-26 | 4 | Details |
| US4350979A | System and method for well-logging | Expired / Lapsed | 1979-04-13 | 1982-09-21 | 24 | Details |
| US4297879A | Well logging correlation method and apparatus | Expired / Lapsed | 1979-07-02 | 1981-11-03 | 114 | Details |
| US4263509A | Method for in situ determination of the cation exchange cap… | Expired / Lapsed | 1979-02-26 | 1981-04-21 | 10 | Details |
| US4152691A | Seismic recording method using separate recording units for… | Expired / Lapsed | 1977-09-26 | 1979-05-01 | 13 | Details |
| US4117448A | Seismic telemetric system for land operations | Expired / Lapsed | 1977-04-13 | 1978-09-26 | 21 | Details |
| US4072923A | Multichannel seismic telemeter system and array former | Expired / Lapsed | 1976-03-08 | 1978-02-07 | 6 | Details |
| US4047430A | Method and apparatus for logging earth boreholes using self… | Expired / Lapsed | 1976-08-02 | 1977-09-13 | 13 | Details |
| US4041780A | Method and apparatus for logging earth boreholes | Expired / Lapsed | 1976-05-03 | 1977-08-16 | 27 | Details |
| US3990036A | Multiplexing method and apparatus for telemetry of seismic … | Expired / Lapsed | 1974-02-28 | 1976-11-02 | 12 | Details |
| US3886355A | Method and apparatus for logging well boreholes with gamma … | Expired / Lapsed | 1972-10-03 | 1975-05-27 | 8 | Details |
| US3859523A | High temperature well logging instrument having increased u… | Expired / Lapsed | 1973-01-26 | 1975-01-07 | 8 | Details |
| US3824533A | Digital count rate meter and depth delay system for well lo… | Expired / Lapsed | 1972-09-18 | 1974-07-16 | 4 | Details |
| US3792430A | Digital count rate meter and depth delay system for well lo… | Expired / Lapsed | 1972-09-18 | 1974-02-12 | 7 | Details |
| US3665195A | Thermal neutron activation radioactivity logging method | Expired / Lapsed | 1969-10-16 | 1972-05-23 | 16 | Details |
| US3662325A | Method of displaying seismic data | Expired / Lapsed | 1969-08-27 | 1972-05-09 | 25 | Details |
| US3611799A | Multiple chamber earth formation fluid sampler | Expired / Lapsed | 1969-10-01 | 1971-10-12 | 0 | Details |
| US3532885A | Method and apparatus for neutron lifetime well logging usin… | Expired / Lapsed | 1967-05-31 | 1970-10-06 | 0 | Details |