Patents for G01R 22 - Arrangements for measuring time integral of electric power or current, e.g. electricity meters (4,127) |
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01/01/2004 | US20040000900 Electrical-energy meter |
12/30/2003 | US6671635 Systems for improved monitoring accuracy of intelligent electronic devices |
12/24/2003 | CN2594797Y Penetrative sensing kilowatt-hour meter |
12/17/2003 | CN1131435C Electric energy metering equipment based on electric load |
12/17/2003 | CN1131434C Power supply circuit for electricity meter |
12/11/2003 | WO2003055031A3 System for the remote data acquisition and control of electric energy meters |
12/10/2003 | CN2591797Y Electric energy metering socket |
12/04/2003 | US20030225713 Prepayment system for power distribution using RFID technology |
12/03/2003 | CN2589998Y Anti-interference multi-user pre-payment electric energy meter |
12/03/2003 | CN2589997Y Intelligent limit electric energy metering equipment |
12/03/2003 | CN2589996Y Mini electric energy measuring plug |
12/03/2003 | CN2589995Y Anti-theft arrangement electric device |
11/27/2003 | US20030220752 Apparatus and system for protection, control, and management of electricity distribution systems using time synchronization |
11/26/2003 | CN2588380Y Wireless data received/transmitted electric energy tester |
11/20/2003 | US20030216971 User interface for a system using digital processors and networks to facilitate, analyze and manage resource consumption |
11/19/2003 | CN1128367C Electric energy metering controller for oil pumping machine |
11/18/2003 | US6650249 Wireless area network communications module for utility meters |
11/13/2003 | US20030212512 Apparatus and system for protection, control, and management of electricity distribution systems over a network |
11/06/2003 | WO2003091964A1 Method of using flash memory for storing metering data |
11/06/2003 | CA2483415A1 Method of using flash memory for storing metering data |
11/05/2003 | CN1454317A Electronic power meter with phase and non-linearity compensation |
11/04/2003 | CA2299044C Method and apparatus for automatically controlled gain switching of monitors |
10/30/2003 | US20030201904 Method of using flash memory for storing metering data |
10/29/2003 | EP1356306A1 Inner component board assembly for an electric utility meter |
10/29/2003 | CN1451969A Electric energy managing network apparatus |
10/28/2003 | US6639518 Automated alarm setpoint learning in an electrical meter |
10/28/2003 | CA2232906C A two-element energy meter having systems for automatic service type detection |
10/22/2003 | CN2582002Y Outdoor high-voltage dry-electric energy meter |
10/21/2003 | US6636893 Web bridged energy management system and method |
10/15/2003 | CN2580446Y Anti-fraudulent use of electricity automatic management system |
10/14/2003 | US6633237 Methods and apparatus for data transfer in electronic energy meters |
10/08/2003 | CN2578837Y Three-phase kilowatt meter |
10/02/2003 | WO2003081264A1 Electronic watthour meter and power-associated quantity calculating circuit |
10/02/2003 | US20030184956 Overall watthour metter enclosure safety replacement window |
10/02/2003 | US20030184280 Power monitoring system |
10/01/2003 | CN2577295Y Intelligent electric-energy metering and controlling integrated electricity meter |
10/01/2003 | CN1445891A Metering socket |
09/25/2003 | US20030178985 Electronic revenue meter with automatic service sensing |
09/17/2003 | CN2574063Y Electric energy meter with time code receiver |
09/17/2003 | CN1442697A Device for anti stealing electricity |
09/16/2003 | US6622097 Method and apparatus for reading and controlling electric power consumption |
09/10/2003 | EP1226443B1 Electromagnetic wave sensor |
09/03/2003 | EP1340311A2 Auxiliary metering apparatus and methods |
09/03/2003 | CN2570800Y External-mounted electric meter for valley point active power |
09/03/2003 | CN2570799Y Single-phase multi-rate electronic style electric energy meter |
09/03/2003 | CN1439883A Automatic eliminating method for self d.c. component in power metering system |
09/03/2003 | CN1439881A Intellectual method and device against electric charge evasion |
08/28/2003 | WO2003071292A1 Radio frequency power measurement |
08/27/2003 | EP1338897A2 Electrical meter |
08/27/2003 | CN2569154Y Electromagnetic shielding type electronic electric meter |
08/27/2003 | CN2569148Y Power source device for power meter |
08/27/2003 | CN1438488A Intelligent network multifunction full-electronic electric meter of preventing fraudulent use of electricity |
08/26/2003 | US6611134 Open type electricity meter |
08/21/2003 | US20030158677 System and method for on-line monitoring and billing of power consumption |
08/13/2003 | EP1118003A4 Methods and apparatus for defining meter data calculations in an electronic electricity meter |
08/06/2003 | CN2565025Y Strong interference-preventing electronic type electric energy metering counter |
07/30/2003 | CN2563581Y Electromechanical integrated non-return meter |
07/24/2003 | WO2003060540A1 Electronic watthour meter, error adjusting method therefor and power computing circuit |
07/24/2003 | WO2003060531A1 Electronic watt-hour meter, error adjusting method, and power calculating circuit |
07/23/2003 | CN2562193Y Single control chip non-contact card pre-paid kilowatt meter |
07/23/2003 | CN2562192Y Single phase mutual inductance energy-saving electronic kilowatt meter |
07/23/2003 | CN2562190Y Kilowatt meter against charge evasion |
07/23/2003 | CN2562189Y Electromechanical integrated kilowatt meter against charge evasion |
07/17/2003 | US20030135338 Real-time energy monitoring system |
07/17/2003 | US20030132742 Compact intelligent electronic device incorporating transformers |
07/16/2003 | CN2560950Y Electronic electric energy meter with new wiring mode |
07/08/2003 | US6590376 Method of deriving a frequency of a pulse signal from alternate sources and method of calibrating same |
07/03/2003 | WO2003055031A2 System for the remote data acquisition and control of electric energy meters |
07/03/2003 | CA2819916A1 System for the remote data acquisition and control of utility meters |
07/03/2003 | CA2471267A1 System for the remote data acquisition and control of electric energy meters |
07/02/2003 | EP1324057A1 Electronic energy meter, in particular domestic meter |
07/02/2003 | CN2558997Y Wide load high voltage dry electric energy metering box |
07/01/2003 | CA2201299C Graphical display for an energy management device |
06/26/2003 | WO2003052447A1 Device for measuring the consumption of electrical energy |
06/25/2003 | CN2557954Y Pulse counter for electronic type electricity energy meter |
06/19/2003 | WO2003050549A1 Method and device for controlling energy consumption by a great number of consumers |
06/18/2003 | CN2556649Y Information button type prepayment electric fee controller |
06/18/2003 | CN1111743C Electronic kilowatt meter and its method |
06/12/2003 | US20030110380 Multi-featured power meter with feature key |
06/10/2003 | US6577961 Energy meter having programmable functions |
06/05/2003 | US20030105608 Phasor transducer apparatus and system for protection, control, and management of electricity distribution systems |
05/30/2003 | CA2366731A1 Power monitoring system |
05/29/2003 | US20030101008 Phasor transducer apparatus and system for protection, control, and management of electricity distribution systems |
05/28/2003 | EP1027580B1 A device and a method of metering and displaying energy consumption and a method of calibrating the device |
05/28/2003 | CN2553553Y Corridor public electric energy equipartition apparatus controlled by computer |
05/28/2003 | CN2553385Y Device for preventing illegal using electricity and long-distance electricmeter-reading |
05/28/2003 | CN1421026A System and method for wireless automatic meter reading |
05/22/2003 | WO2003043133A1 Electric power watthour meter with cover handles |
05/21/2003 | CN1419131A Intelligent fraudulent use prevention electric energy measuring method and device thereof |
05/15/2003 | US20030093390 System and method for estimating power consumption of electric apparatus, and abnormality alarm system utilizing the same |
05/14/2003 | EP0643841B2 System and process for the measurement of the electric energy consumption of a plurality of consumers |
05/14/2003 | CN2550925Y Portable electric Meter |
05/13/2003 | US6564159 Methods and apparatus for defining meter data calculations in an electronic electricity meter |
05/08/2003 | WO2003038454A1 Real-time charging electronic watthour meter |
05/08/2003 | US20030085842 Wireless communication device for electric meter and method of manufacture thereof |
05/01/2003 | US20030080725 Wide-band RF signal power decting element and power detecting device using the same |
04/30/2003 | CN2548163Y Electric energy measuring apparatus |
04/30/2003 | CN1415075A Electronic watt-hour meter |
04/29/2003 | US6555997 Electricity meter and an input module for an electricity meter |
04/24/2003 | US20030076242 Utility meter having computer network access for receiving an interpretive language program to implement new meter functionality |