| Patents for G01R 11 - Electromechanical arrangements for measuring time integral of electric power or current, e.g. of consumption (8,227) |
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| 04/03/1991 | EP0420534A2 Electronic energy meter |
| 03/26/1991 | US5001912 Lockable meter clamp ring |
| 03/25/1991 | CA2014915A1 Modular construction for electronic energy meter |
| 03/20/1991 | CN2073589U Intelligent bayonet-type single-phase wattful watt-hour meter |
| 03/20/1991 | CN2073588U Anti-power-theft watt-hour meter |
| 03/20/1991 | CN1050093A Time-sharing and reading devices for watt-hour meter |
| 03/19/1991 | US5001420 Modular construction for electronic energy meter |
| 03/12/1991 | CA1281419C Prepayment metering system using encoded purchase cards |
| 03/06/1991 | CN2072689U Electricity-stealing proof single-phase wattmeter |
| 03/05/1991 | US4998102 Integrated meter transponder |
| 02/27/1991 | CN2072228U Fast detector for indicating fraudulent use of electricity |
| 02/27/1991 | CN2072227U Refracting mirror for readout instrument |
| 02/20/1991 | CN2071790U Anti-electricity-stealing device |
| 02/19/1991 | US4994734 Register circuit board for electronic energy meter |
| 02/19/1991 | CA1280464C Replaceable resistors for calibrating a watthour meter |
| 02/13/1991 | EP0412097A1 Magnetic field detection system |
| 02/06/1991 | CN2070912U Arrangement of electric meter for avoiding or indicating fraudulent use of electricity |
| 01/17/1991 | DE3921959A1 Electricity motor measurement mechanism carrier attachment arrangement - attaches metal carrier to thermosetting plastic plate using self-tapping screws |
| 01/16/1991 | CN1048600A Energy saving kilowatt-bour meter |
| 01/16/1991 | CN1048599A Device and method for ac shift and kwh meter piecewise measurement |
| 01/09/1991 | CN2069118U Watt-hour meter with the function of electricity fraudulent use proof |
| 01/09/1991 | CN2069117U Cover of terminal box of watt-hour meter with the function of electricity fraudulent use proof |
| 01/02/1991 | CN2068686U Multifunction controller for preventing stealing electricity |
| 01/02/1991 | CN2068685U Miniature multifunction protector for watt-hour meter |
| 12/26/1990 | CN2068244U Punishing type anti-stealing electricity kilowatt-hour meter |
| 12/26/1990 | CN2068243U Anti-stealing electricity one-phase alternating current kilowatt-hour meter |
| 12/26/1990 | CN2068242U Energy-saving kilowatt-hour meter |
| 12/22/1990 | WO1990015971A1 Opto-electronic pick-up for energy consumption counter |
| 12/11/1990 | US4977482 Watthour meter socket adapter with interface connection |
| 12/11/1990 | US4977368 Electric utility meter with electronic register |
| 12/05/1990 | CN2066988U Fraudulent use protector for electricity |
| 12/04/1990 | CA1277385C Anti-tamper device for utility meters |
| 11/28/1990 | CN2066583U Line box for electric meter of anti-stealing electricity |
| 11/21/1990 | CN2066140U Automatic control alarm watt-hour meter for limiting quantity of electricity and anti-stealing electricity |
| 11/21/1990 | CN2066139U Zeroloss kilowatt-hour meter |
| 11/20/1990 | CA1276680C Modularized solid state register |
| 11/14/1990 | CN2065760U Electric power tariff meter |
| 11/07/1990 | CN2065325U Multifunctional electric controller for single-phase electric meter |
| 11/07/1990 | CN1046800A Electricity-saving circuit for kilowatt-hour meter |
| 10/17/1990 | CN2064064U Watt-hour meter |
| 10/16/1990 | CA1275304C Time-of-use-meter with a calendar of cyclic events |
| 10/10/1990 | CN2063646U Energy-saving protective device |
| 09/26/1990 | CN2062851U Saturation magnetization device for permanent magnet pair of electric meter |
| 09/25/1990 | US4959607 Restrictor for multiple switch external control actuator for electronic energy meter |
| 09/19/1990 | CN2062453U Electric meter with limited current and anti-stealing electricity function |
| 09/19/1990 | CN2062452U Antomatic taking down the number of electric meter |
| 09/12/1990 | CN2062052U Watt-hour meter box for protecting from electricity fraudulent use |
| 09/12/1990 | CN2062051U Energy-saving watt-hour meter |
| 09/11/1990 | US4956551 Sensor for consumption measurements in a household measuring system |
| 09/05/1990 | CN2061693U Audio-frequency remote control double tariff kilowatt-hour meter |
| 08/29/1990 | CN2061292U Linearity-regulating device of internal magnetic indicating instrument |
| 08/29/1990 | CN2061291U Kw-hr. and electric quantity detecting device on outside of meter |
| 08/29/1990 | CN2061290U Electronic digital maximum demand meter |
| 08/29/1990 | CN2061289U Electromagnetic mechanical induction type energy-saving kilowatt-hour meter |
| 08/29/1990 | CN2061288U Energy-saving kilowatt-hour meter |
| 08/29/1990 | CN2061287U Multifunctional intelligence type kilowatt-hour meter |
| 08/22/1990 | CN2060891U Multi-function device for preventing theft of electricity |
| 08/22/1990 | CN2060890U Multi-function moniter attached to electric meter for preventing theft of electricity |
| 08/22/1990 | CN2060889U Energy-saving device for electric meter during no-load |
| 08/15/1990 | CN2060550U Supper-wide load electrical energy metering mechanism |
| 08/01/1990 | CN2059990U Loss-free electricity meter |
| 08/01/1990 | CN2059989U 固态电子电度表 Solid state electronic power meter |
| 08/01/1990 | CN1044344A 智能电力计量装置 Smart electricity metering devices |
| 08/01/1990 | CN1044342A Multifunction device for prevention of electricity-stealing |
| 07/31/1990 | CA1272245A1 Ammeter for use with a.c. electric power lines |
| 06/13/1990 | EP0372937A2 Electrical fault detecting device |
| 06/13/1990 | CN2058251U Electricity stealing deterrent device for electric meter |
| 06/07/1990 | CA2004890A1 Electrical fault detecting device |
| 06/06/1990 | CN2058013U Three-phase four-wire active watt meter loss of phase indicator |
| 05/30/1990 | CN2057759U Compensation system for watt-hour meter overloading |
| 05/16/1990 | CN2057280U Metering and switching controller for over quota electricity-consuming |
| 05/16/1990 | CN1042239A Device for preventing stealing electricity from electric meter |
| 05/09/1990 | CN2057003U Idle electricity saver of one-phase electric meter |
| 05/09/1990 | CN2057002U Three-phase three-wire multifunctional electric meter |
| 04/26/1990 | DE3832535A1 Housing of an electricity meter |
| 04/25/1990 | EP0216788B1 Rate apparatus incorporated in an electric meter case |
| 04/25/1990 | CN2056513U Automotive timing recorder for electric power |
| 04/19/1990 | DE3834832A1 Device for setting and calibrating an electricity meter |
| 04/11/1990 | CN2055938U Electricity rationing controller for kilowatt-hour meter |
| 04/04/1990 | CN2055600U Three-phase and three-line multifunction electric watt-hour meter |
| 03/28/1990 | EP0360511A2 Electric energy metering |
| 03/28/1990 | CN2055256U Three-phase device for electricity illegal-use-proof |
| 03/28/1990 | CN1040867A Anti-pilfering electricity kilowatt-hour meter |
| 03/14/1990 | EP0357868A1 Electricity meter with a two or multiple tariff counting device |
| 03/13/1990 | US4907334 For safe removal of a glass enclosed electrical power device |
| 03/08/1990 | DE3828650A1 Device (meter), especially charging device (meter) |
| 03/07/1990 | CN2054166U Improved electric metering device for anti-thief |
| 03/06/1990 | US4906059 Electrical apparatus cabinet having internal barrier seal visible from exterior of cabinet |
| 02/28/1990 | CN2053757U Anti-electrcity-stealing, electricity-limiting and safety device |
| 02/28/1990 | CN2053756U Zeroloss kilowatt-hour meter |
| 02/21/1990 | CN2053343U 脉冲电度表 Pulse meter |
| 02/21/1990 | CN2053342U Multifunctional electric apparatus for avoiding or indicating fraudulent use |
| 02/13/1990 | US4901007 Portable electrical energy monitor |
| 02/07/1990 | EP0354162A2 Integrated meter transponder |
| 02/07/1990 | CN2052538U Rigid plastics watt-hour meter box |
| 01/24/1990 | EP0076809B2 Multiple rate electrical energy metering apparatus |
| 01/03/1990 | CN2050613U Ac safety watl-hour meter used for detecting clectrical fault |
| 01/03/1990 | CN2050612U Lamp-controlled watt-hour meter |
| 01/03/1990 | CN2050611U Timing automatic control of electric power |
| 01/03/1990 | CN2050610U Special electric welding machine watt-hour meter |