Assignee
SCHLUMBERGER IND INC
US·75 granted patents·4,429 citations·filing 1986–1997
Top patents by PatentIndex Score
75 records- 0198US5293115AMethod and system for sensing removal of a utility meter from its socketSCHLUMBERGER IND INC·Filed 1993·Granted Mar 8, 1994·152 cites·7 claims
- 0297US5631554AElectronic metering device including automatic service sensingSCHLUMBERGER IND INC·Filed 1995·Granted May 20, 1997·162 cites·12 claims
- 0397US5422565AMethod and system for sensing removal of a utility meter from its socketSCHLUMBERGER IND INC·Filed 1993·Granted Jun 6, 1995·124 cites·6 claims
- 0496US5523559AMethod and system for sensing removal of a utility meter from its socketSCHLUMBERGER IND INC·Filed 1994·Granted Jun 4, 1996·133 cites·6 claims
- 0595US5451938ARF meter reading systemSCHLUMBERGER IND INC·Filed 1993·Granted Sep 19, 1995·126 cites·15 claims
- 0694US5252967AReader/programmer for two and three wire utility data communications systemSCHLUMBERGER IND INC·Filed 1992·Granted Oct 12, 1993·197 cites·27 claims
- 0794US5243338ATwo and three wire utility data communications systemSCHLUMBERGER IND INC·Filed 1992·Granted Sep 7, 1993·116 cites·42 claims
- 0894US5239575ATelephone dial-inbound data acquisition system with demand reading capabilitySCHLUMBERGER IND INC·Filed 1991·Granted Aug 24, 1993·296 cites·29 claims
- 0994US5060526ALaminated semiconductor sensor with vibrating elementSCHLUMBERGER IND INC·Filed 1989·Granted Oct 29, 1991·93 cites·85 claims
- 1094US5027059ADifferential current shuntSCHLUMBERGER IND INC·Filed 1989·Granted Jun 25, 1991·189 cites·15 claims
- 1193US5804741ADigital phase locked loop signal processing for coriolis mass flow meterSCHLUMBERGER IND INC·Filed 1996·Granted Sep 8, 1998·136 cites·29 claims
- 1293US5473322AApparatus and method for sensing tampering with a utility meterSCHLUMBERGER IND INC·Filed 1992·Granted Dec 5, 1995·200 cites·41 claims
- 1393US5062302ALaminated semiconductor sensor with overpressure protectionSCHLUMBERGER IND INC·Filed 1990·Granted Nov 5, 1991·84 cites·23 claims
- 1492USD348924SSnap-in strainerSCHLUMBERGER IND INC·Filed 1991·Granted Jul 19, 1994·45 cites·1 claims
- 1592US4852410AOmega-shaped, coriolis-type mass flow rate meterSCHLUMBERGER IND INC·Filed 1986·Granted Aug 1, 1989·98 cites·36 claims
- 1690US5717718AMultipoint to point radiocommunications networkSCHLUMBERGER IND INC·Filed 1994·Granted Feb 10, 1998·138 cites·16 claims
- 1790US5659303AMethod and apparatus for transmitting monitor dataSCHLUMBERGER IND INC·Filed 1995·Granted Aug 19, 1997·155 cites·15 claims
- 1890US5416475ARemote meter reading receptacle for pit lid mountingSCHLUMBERGER IND INC·Filed 1993·Granted May 16, 1995·117 cites·10 claims
- 1990US5032833AAdaptive network routing for power line communicationsSCHLUMBERGER IND INC·Filed 1989·Granted Jul 16, 1991·186 cites·34 claims
- 2089US5429002ACoriolis-type fluid mass flow rate measurement device and method employing a least-squares algorithmSCHLUMBERGER IND INC·Filed 1994·Granted Jul 4, 1995·93 cites·12 claims
- 2187US4949029AAdjustment circuit and method for solid-state electricity meterSCHLUMBERGER IND INC·Filed 1988·Granted Aug 14, 1990·80 cites·32 claims
- 2285US5469049ASystem checking and troubleshooting package for an electronic metering deviceSCHLUMBERGER IND INC·Filed 1993·Granted Nov 21, 1995·50 cites·11 claims
- 2383US5519388AMethod and apparatus for active temperature compensation in a radiowave transmitterSCHLUMBERGER IND INC·Filed 1995·Granted May 21, 1996·64 cites·20 claims
- 2482US5546801AWater flow meter adapter for residential fire service sprinkler systemsSCHLUMBERGER IND INC·Filed 1994·Granted Aug 20, 1996·50 cites·18 claims
- 2582US4968970AMethod of and system for power line carrier communicationsSCHLUMBERGER IND INC·Filed 1989·Granted Nov 6, 1990·107 cites·27 claims
- 2681US5509437ADry hydrant check valveSCHLUMBERGER IND INC·Filed 1994·Granted Apr 23, 1996·44 cites·15 claims
- 2781US5155481ATwo and three wire utility data communications systemSCHLUMBERGER IND INC·Filed 1990·Granted Oct 13, 1992·116 cites·31 claims
- 2880US4864868AVortex flowmeter transducerSCHLUMBERGER IND INC·Filed 1987·Granted Sep 12, 1989·41 cites·17 claims
- 2979US5797421ADry hydrant siphon assemblySCHLUMBERGER IND INC·Filed 1995·Granted Aug 25, 1998·52 cites·25 claims
- 3079US5216357AReal time solid state register having battery backupSCHLUMBERGER IND INC·Filed 1991·Granted Jun 1, 1993·61 cites·10 claims
- 3177US5471137ASystem checking and troubleshooting package for an electronic metering deviceSCHLUMBERGER IND INC·Filed 1994·Granted Nov 28, 1995·34 cites·1 claims
- 3277US5251480AFrost-proof drive shaft for water meterSCHLUMBERGER IND INC·Filed 1992·Granted Oct 12, 1993·42 cites·12 claims
- 3375US5629875AMethod and apparatus for interactively tuning frequency hopping transmitterSCHLUMBERGER IND INC·Filed 1995·Granted May 13, 1997·57 cites·11 claims
- 3473US5701253AIsolated current shunt transducerSCHLUMBERGER IND INC·Filed 1995·Granted Dec 23, 1997·40 cites·17 claims
- 3573US5694103ALaminated figure 8 power meter coreSCHLUMBERGER IND INC·Filed 1996·Granted Dec 2, 1997·40 cites·25 claims
- 3671USD353444SSnap on cap for a dry fire hydrantSCHLUMBERGER IND INC·Filed 1991·Granted Dec 13, 1994·15 cites·1 claims
- 3770US5521572AUnshielded air-coupled current transformerSCHLUMBERGER IND INC·Filed 1994·Granted May 28, 1996·23 cites·15 claims
- 3870US5197334AProgrammable compensation of bridge circuit thermal responseSCHLUMBERGER IND INC·Filed 1991·Granted Mar 30, 1993·30 cites·5 claims
- 3970US4924412AIntegrated poly-phase power meterSCHLUMBERGER IND INC·Filed 1987·Granted May 8, 1990·26 cites·36 claims
- 4070US4876002AReverse osmosis water purificaiton unitSCHLUMBERGER IND INC·Filed 1988·Granted Oct 24, 1989·33 cites·19 claims
- 4169USD336258SGas meterSCHLUMBERGER IND INC·Filed 1991·Granted Jun 8, 1993·15 cites·1 claims
- 4269US5134650ADial inbound meter interface unit (MIU) for automatic meter reading using no subscriber line access controllerSCHLUMBERGER IND INC·Filed 1991·Granted Jul 28, 1992·68 cites·12 claims
- 4369US4839038AFluid strainer and flow corrector for fluid measurement deviceSCHLUMBERGER IND INC·Filed 1988·Granted Jun 13, 1989·33 cites·4 claims
- 4466US4841781AFlow rectifier for vortex flowmeterSCHLUMBERGER IND INC·Filed 1987·Granted Jun 27, 1989·23 cites·11 claims
- 4565US4926131ATriangle waveform generator for pulse-width amplitude multiplierSCHLUMBERGER IND INC·Filed 1987·Granted May 15, 1990·20 cites·26 claims
- 4665US4891990AVortex flowmeter transducerSCHLUMBERGER IND INC·Filed 1988·Granted Jan 9, 1990·27 cites·15 claims
- 4763US5984375AHose collar and method of use thereforSCHLUMBERGER IND INC·Filed 1997·Granted Nov 16, 1999·28 cites·18 claims
- 4862US5963880AMethod for predicting water meter accuracySCHLUMBERGER IND INC·Filed 1997·Granted Oct 5, 1999·40 cites·56 claims
- 4961US5422939AParallel off-hook detection for both line-available and phone pick-up detectionSCHLUMBERGER IND INC·Filed 1993·Granted Jun 6, 1995·47 cites·15 claims
- 5056US5650073ADry hydrant strainer with strainer hole pattern for achieving uniform flow ratesSCHLUMBERGER IND INC·Filed 1995·Granted Jul 22, 1997·20 cites·8 claims
Showing the top 50 of 75 patent records by PatentIndex Score.
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