| Patents for G01R 22 - Arrangements for measuring time integral of electric power or current, e.g. electricity meters (4,127) |
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| 06/25/1997 | CN2257021Y Kilo-watt-hour meter |
| 06/18/1997 | CN1152129A Electronic prepayment type electric watt-hour meter |
| 06/11/1997 | CN1151527A Opto-electronic demand meter using optical metering outfit |
| 06/04/1997 | EP0777125A2 Vector electricity meters and associated vector electricity metering methods |
| 05/20/1997 | US5631843 Programmable electrical energy meter and methods therefor |
| 05/20/1997 | US5631554 Electronic metering device including automatic service sensing |
| 05/14/1997 | CN2254192Y Multifunctional high-grade KWH meter |
| 04/30/1997 | CN1034772C Method for solving the contradition between watt-hour operation precision and speed in digit electronic watt-hour meter |
| 04/30/1997 | CN1034771C Automatic time-delay and rang-compensation method and watt hour meter using said method |
| 04/30/1997 | CN1034770C Digital automatic phase amplitude compensation method and watt metering device using same |
| 04/17/1997 | DE19539547A1 Electronic meter for measuring electric work as power consumed by electric unit |
| 04/09/1997 | CN2251727Y Electronic digital electric energy meter |
| 04/08/1997 | US5619192 Apparatus and method for reading utility meters |
| 04/02/1997 | CN2251142Y Card prepayment watthour meter |
| 03/27/1997 | DE19605653C1 Electricity meter with digital signal processor |
| 03/19/1997 | CN2249907Y Electronic card single phase watt meter |
| 03/19/1997 | CN1145476A Electronic digital watt-hour meter |
| 02/26/1997 | CN2248344Y Multi-function, multi-parameter electric meter for switch room use |
| 02/25/1997 | US5606510 High speed power analyzer |
| 02/19/1997 | CN2247819Y Grouping electronic civil electric energy meter |
| 02/19/1997 | CN2247818Y Three phase intelligence electric energy meter |
| 02/13/1997 | DE19526723C1 Elektrizitätszähler Electricity meters |
| 02/06/1997 | WO1997004321A1 Electricity meter |
| 02/06/1997 | CA2227288A1 Electricity meter |
| 02/05/1997 | CN2246808Y Arrangement for measuring and controlling multi-user's electricity |
| 02/05/1997 | CN1142264A Measuring process for measuring chargeable electrical consumption from an electrical network and electronic electricity meter |
| 01/29/1997 | CN1141493A Method for estimating discharge capability of zinc oxide power element, method for screening element and systems for carrying out these methods |
| 12/31/1996 | US5590179 Remote automatic meter reading apparatus |
| 12/11/1996 | EP0554424B1 Method for identifying electrical power consumers on a circuit being monitored |
| 12/03/1996 | US5581471 Method and apparatus for storing electric power measurements |
| 11/27/1996 | CN1136666A Electric meter for anti-fraudulent use |
| 11/21/1996 | WO1996021264A3 Energy management and building automation system |
| 11/20/1996 | CN2240732Y Ultra-thin type static single-plase electric meter |
| 11/13/1996 | EP0742443A2 Improvements in or relating to electricity meters |
| 11/05/1996 | US5572438 Engery management and building automation system |
| 10/30/1996 | EP0739489A1 Measuring process for measuring chargeable electrical consumption from an electrical network and electronic electricity meter |
| 10/30/1996 | CN2239035Y Watt-hour meter with IC card |
| 10/23/1996 | CN2238445Y Electronic time-sharing account active electric meter |
| 10/23/1996 | CN2238444Y Clamp type electronic electric energy meter |
| 10/16/1996 | CN2237853Y Power converter type single-phase bayonet-socket watt-hour meter |
| 10/09/1996 | CN1132858A Electrical metering system having electrical meter and external current sensor ensor |
| 10/02/1996 | CN2236662Y Intellectural monitor for electric power supply |
| 09/18/1996 | CN2235622Y Digital card type multi-function electric meter |
| 09/17/1996 | US5557557 Processor power profiler |
| 09/11/1996 | EP0731359A2 Graphical display for an energy management device |
| 09/11/1996 | CN2235123Y Full-electronic electric card prepayment single-phase active meter |
| 09/10/1996 | US5555508 Programmable electrical energy meter and methods therefor |
| 08/20/1996 | US5548527 Programmable electrical energy meter utilizing a non-volatile memory |
| 08/06/1996 | US5544089 Programmable electrical energy meter using multiplexed analog-to-digital converters |
| 07/31/1996 | CN2232144Y Electronic multi-user intelligence kilowatt-hour meter |
| 07/23/1996 | US5539304 Calibration of power meters |
| 07/16/1996 | US5537333 Method of determining power measurements in an electrical energy meter |
| 07/16/1996 | US5537029 For electronically displaying metered electrical energy |
| 07/11/1996 | WO1996021264A2 Energy management and building automation system |
| 07/10/1996 | CN2230934Y Intellectual card electricity meter |
| 07/10/1996 | CN2230929Y Electric meter |
| 07/03/1996 | CN2230451Y Watt-hour meter |
| 06/26/1996 | EP0718635A2 An electrical metering system having an electrical meter and an external current sensor |
| 06/26/1996 | EP0718633A1 Current measuring device |
| 06/19/1996 | EP0717286A2 Commodity consumption meters |
| 06/19/1996 | CN2229667Y Single-phase magnetic card electric meter |
| 06/11/1996 | US5525898 Programmable multi-channel load profile recorder and method of recording electrical energy metering quantities therein |
| 06/05/1996 | EP0715171A2 Improvements in or relating to electricity meters |
| 05/21/1996 | US5519622 Real time, economic-impact display system for consumers of commoditized electric power |
| 05/21/1996 | US5519387 Utility meter assembly and remote module and mounting apparatus and assembly |
| 05/15/1996 | CN1122452A Electronic electric energy meter for prepayment of credit card |
| 05/07/1996 | US5514958 Electrical energy meters having factory set calibration circuits therein and methods of calibrating same |
| 04/11/1996 | WO1996010856A1 Graphical display for an energy management device |
| 04/10/1996 | CN1120168A Multifunction digital watt-hour meter for single-chip processor |
| 03/20/1996 | CN2222925Y Electronic all-purpose KWH meter |
| 03/20/1996 | CN2222924Y Single-phase electric meter intelligent device |
| 03/13/1996 | CN2222361Y Electronic type single-phase active electric meter |
| 03/13/1996 | CN2222360Y Electronic three-phase energy-saving active electric meter |
| 03/13/1996 | CN2222359Y Digital electric meter |
| 03/06/1996 | CN2221785Y Intelligent coulometric monitor capable of avoiding or indicating fraudulent use of electricity |
| 02/08/1996 | DE4426509A1 Element for indicating electrical consumption data |
| 02/07/1996 | CN2219501Y Multi-user prepayment type electric energy meter |
| 02/07/1996 | CN2219500Y Prepayment-type electric energy meter with self-protection function |
| 02/07/1996 | CN2219499Y Digital converter for electric signal |
| 01/30/1996 | US5488290 Energizing devices for kilowatt hour meter displays |
| 01/03/1996 | CN2216682Y Static single-phase pre-paying electric energy meter |
| 12/27/1995 | CN2216250Y Microcomputerized card prepayment rated watt-hour meter |
| 12/27/1995 | CN1114052A Method for solving the contradiction between watt-hour operation precision and speed in digit electron watt-hour meter |
| 12/21/1995 | WO1995034822A1 Magnetic card type watthour meter and its calculating and controling system |
| 12/20/1995 | CN2215726Y Magnetic card type digital electric meter capable of caculating compound interest rate of fee |
| 12/14/1995 | DE4420049A1 Retrospective fitting kit for electricity meter |
| 12/06/1995 | CN2214674Y Step watt-hour meter |
| 12/06/1995 | CN2214673Y Watt-hour meter computerized magnetic card fee reader |
| 11/29/1995 | CN1112680A Operational digital set type electronic electric meter |
| 11/28/1995 | US5471137 System checking and troubleshooting package for an electronic metering device |
| 11/21/1995 | US5469049 System checking and troubleshooting package for an electronic metering device |
| 11/15/1995 | CN2212792Y Card-type watt-hour meter |
| 11/08/1995 | CN1111354A Device for sectionally measuring electric energy according to electric power network frequency |
| 10/25/1995 | CN1030153C Electronic numerical controlled watt-hour meter |
| 10/18/1995 | CN2210510Y Intelligence type milliampere stopwatch |
| 10/04/1995 | CN2209336Y Computerized multifunctional watthour meter |
| 09/20/1995 | CN2208234Y Dual card pre-paid electronic watt-hour meter |
| 09/19/1995 | US5451937 Universal generator interface module |
| 09/13/1995 | EP0671009A1 Programmable electrical energy meter and methods therefor |
| 09/13/1995 | CN2207584Y Watt-hour meter Chinese character indicator |