Assignee
SEISMOGRAPH SERVICE CORP
9 granted patents·255 citations·filing 1973–1987
Top patents by PatentIndex Score
9 records- 0185US4241602ARheometerSEISMOGRAPH SERVICE CORP·Filed 1979·Granted Dec 30, 1980·67 cites·20 claims
- 0281US4390986ADigital subscriber communication systemSEISMOGRAPH SERVICE CORP·Filed 1980·Granted Jun 28, 1983·49 cites·41 claims
- 0375US3985199AApparatus for timing the firing of energy sourcesSEISMOGRAPH SERVICE CORP·Filed 1974·Granted Oct 12, 1976·20 cites·17 claims
- 0469US3972019ATime synchronizationSEISMOGRAPH SERVICE CORP·Filed 1973·Granted Jul 27, 1976·26 cites·2 claims
- 0567US4222455AVibration generatorsSEISMOGRAPH SERVICE CORP·Filed 1978·Granted Sep 16, 1980·24 cites·6 claims
- 0661US4141431ADetermination of firing times of acoustic pulsesSEISMOGRAPH SERVICE CORP·Filed 1977·Granted Feb 27, 1979·18 cites·9 claims
- 0756US4815557ADown hole seismographic sourceSEISMOGRAPH SERVICE CORP·Filed 1987·Granted Mar 28, 1989·32 cites·12 claims
- 0842US4500978ASeismographic method and apparatus using scaled sound sourcesSEISMOGRAPH SERVICE CORP·Filed 1982·Granted Feb 19, 1985·11 cites·17 claims
- 0924US5022052AAnalog signal binary transmission system using slope detectionSEISMOGRAPH SERVICE CORP·Filed 1987·Granted Jun 4, 1991·8 cites·10 claims
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