| Patents for G01R 21 - Arrangements for measuring electric power or power factor (6,609) |
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| 09/13/2005 | US6943539 Electricity meter with multiple gains signal to an A/D converter |
| 09/13/2005 | US6943538 Apparatus for and method of measuring power consumption |
| 09/08/2005 | US20050195029 Device for detecting the power of a signal and integrated circuit with amplifier and related power detection device |
| 09/08/2005 | US20050194962 Electronic revenue meter with automatic service sensing |
| 09/07/2005 | EP1393083A4 Utility usage rate monitor |
| 09/07/2005 | EP1358490B1 Method for evaluating a measuring signal and corresponding circuit arrangement |
| 09/07/2005 | EP1299922A4 Successive log video pad power detector and method |
| 09/06/2005 | US6940268 Apparatus for metering at least one type of electrical power over a predetermined range of service voltages |
| 09/06/2005 | US6940264 Near field probe |
| 09/01/2005 | WO2005080998A1 Method and apparatus for monitoring power quality in an electric power distribution system |
| 09/01/2005 | US20050192766 Method and apparatus for measuring absolute and net power consumption for computer systems |
| 09/01/2005 | US20050190074 Method and apparatus for collecting and displaying consumption data from a meter reading system |
| 08/31/2005 | EP1568044A2 Power converter circuitry and method |
| 08/31/2005 | CN2722259Y Power frequency parameter measuring device of high-voltage transmission circuit |
| 08/31/2005 | CN1217199C Low-cost power measuring apparatus for multiple electric motor |
| 08/30/2005 | US6937946 System and method for remote identification of energy consumption systems and components |
| 08/30/2005 | US6937003 Power monitoring system |
| 08/25/2005 | US20050187725 Method and apparatus for monitoring power quality in an electric power distribution system |
| 08/24/2005 | CN2720452Y Composite ratio-changeable automatic change-over electric meter |
| 08/24/2005 | CN2720451Y Digital PT secondary voltage-drop automatic metering compensator |
| 08/24/2005 | CN2720450Y High-voltage transmission line parameter detector |
| 08/23/2005 | US6934654 System and method for exact compensation of fundamental phasors |
| 08/23/2005 | US6934520 CMOS current mode RF detector and method |
| 08/18/2005 | WO2005075965A1 Device for measuring material properties |
| 08/17/2005 | EP1472549B1 Power detector with constant voltage decoupling |
| 08/17/2005 | CN1215685C Main path sampling type multi-port network |
| 08/17/2005 | CN1215337C Intelligent fraudulent use prevention electric energy measuring device |
| 08/16/2005 | US6931333 Electrical power sensing |
| 08/11/2005 | US20050174234 Radio frequency power generation and power measurement |
| 08/11/2005 | US20050174101 Radio frequency power measurement |
| 08/10/2005 | CN1214520C Accurate power detection circuit for use in power amplifier |
| 08/04/2005 | US20050168209 Near field probe |
| 08/04/2005 | DE10361664A1 Energiezähleranordnung Energy meter arrangement |
| 08/04/2005 | DE102004002189A1 Elektronischer Elektrizitätszähler bzw. Rundsteuerempfänger für Elektrizitätszähler Electricity meter or ripple control receiver for electricity meters |
| 08/03/2005 | CN1213307C Sigma-delta multiplier circuit for power measurement equipment |
| 08/03/2005 | CN1213306C Radio-frequency power sensor using capacitance to measure radio frequency signal power |
| 07/28/2005 | US20050162148 Apparatus and method for monitoring power and current flow |
| 07/27/2005 | EP1557680A1 Device for detecting the power of a radio frequency signal |
| 07/27/2005 | EP1557678A1 Electricity meter |
| 07/27/2005 | CN1212520C Semiconductor thermocouple microwave power sensor |
| 07/21/2005 | WO2005066643A1 Energy metering system |
| 07/20/2005 | EP1555534A1 Electronic electricity meter with ripple control receiver |
| 07/20/2005 | EP1456683B1 Device for measuring the consumption of electrical energy |
| 07/20/2005 | CN1211665C Electronic device |
| 07/14/2005 | WO2005008181A3 Methods and apparatus for monitoring power flow in a conductor |
| 07/14/2005 | US20050151532 Synchronous vector measuring device |
| 07/14/2005 | DE19913338B4 Ein- oder Mehrweg-HF-Diodengleichrichterschaltung Single- or multi-RF diode rectifier circuit |
| 07/14/2005 | DE102004009006A1 Verfahren zur Funktionsprüfung einer Lampenschaltung Method for testing the function of a lamp circuit |
| 07/14/2005 | CA2492822A1 A method and apparatus for collecting and displaying consumption data from a meter reading system |
| 07/13/2005 | CN1637422A Electrical power measuring devices |
| 07/12/2005 | CA2298992C Temperature compensated high performance oscillator |
| 06/30/2005 | US20050143961 Universal power measurement SoC and measuring method |
| 06/29/2005 | EP1548451A2 System for the remote reading and control of electric energy consumption |
| 06/28/2005 | US6911813 Methods and apparatus for phase compensation in electronic energy meters |
| 06/23/2005 | WO2005057231A1 Method for functional testing of a lamp circuit |
| 06/23/2005 | US20050137812 Ultrasonic flowmeter |
| 06/22/2005 | CN1630159A Field bus based electric energy computing system |
| 06/22/2005 | CN1207943C Method and device for radio frequency metering |
| 06/15/2005 | EP1540357A2 Method and apparatus for obtaining power computation parameters |
| 06/15/2005 | EP1297347A4 Apparatus and method for the measurement and monitoring of electrical power generation and transmission |
| 06/15/2005 | CN1627087A Electric power meter |
| 06/15/2005 | CN1627086A Power measurement system composed of PC and voltmeter |
| 06/14/2005 | US6906617 Intelligent appliance home network |
| 06/14/2005 | US6906507 Electronic revenue meter with automatic service sensing |
| 06/08/2005 | EP1538450A1 Electrical power meter |
| 06/07/2005 | US6903542 Systems and method for performing RF power measurements |
| 06/02/2005 | US20050116701 Power detector with constant voltage decoupling |
| 06/01/2005 | CN1621852A Method for realizing single-purpose language for automatic acquisition system of electric energy metering equipment |
| 06/01/2005 | CN1621851A Digital power-factor measurement device and method thereof |
| 06/01/2005 | CN1204686C Power level detecting circuit |
| 05/31/2005 | US6901337 Method and apparatus for measuring signal pulse energy |
| 05/25/2005 | DE10334517A1 Messgerät für elektrische Energie für ein Wechselstromnetz Meter for measuring electrical power for an alternating current network |
| 05/19/2005 | WO2005045449A1 Broadband microwave power sensor |
| 05/19/2005 | WO2004105239B1 Efficient coupler detector circuit with reduced harmonic distortion |
| 05/18/2005 | EP1531334A2 Electrical power measuring devices |
| 05/17/2005 | US6894476 Efficient coupler detector circuit with reduced harmonic distortion |
| 05/11/2005 | EP1200925A4 System and method for frequency compensation in an energy meter |
| 05/11/2005 | CN1615442A System for the remote data acquisition and control of electric energy meters |
| 05/11/2005 | CN1614430A Electric energy quality monitoring, recording and analyzing system |
| 05/06/2005 | WO2005040837A1 Magnetic bridge electric power sensor |
| 05/05/2005 | US20050096857 Method and apparatus for reading and controlling electric power consumption |
| 05/05/2005 | US20050093532 Broadband microwave power sensor |
| 05/04/2005 | CN1200337C Method and device for electric power element for video-frequency presentation display equipment |
| 05/03/2005 | CA2190905C Vector electricity meters and associated vector electricity metering methods |
| 04/28/2005 | WO2005039002A1 Average power determining circuit, laser diode driving circuit, and optical transmission module |
| 04/21/2005 | US20050083206 Remote electrical power monitoring systems and methods |
| 04/21/2005 | US20050083035 Measurement of energy by means of a frequency converter |
| 04/20/2005 | CN2694284Y Maximum output electric power testing device for supersonic surgery apparatus |
| 04/19/2005 | US6882946 Spectral analysis measurement apparatus and method of measuring for spectral analysis measurement apparatus |
| 04/14/2005 | DE19827345B4 Verfahren zur Ableitung der Wirkleistung elektrischer Verbraucher The method used to derive the effective power electrical loads |
| 04/13/2005 | CN1605875A Multifunctional single-phase digital watthour meter |
| 04/13/2005 | CN1196936C Detecting analytic system |
| 04/12/2005 | US6879260 Load indicator |
| 04/07/2005 | US20050075076 Method and apparatus for measuring impedance of electrical component under high interference conditions |
| 04/07/2005 | DE102004032908A1 Batterielastenergie-Erfassungssystem Battery load energy detection system |
| 04/06/2005 | EP1521089A2 System and method of measuring electric energy in an electric motor drive |
| 04/06/2005 | CN1605032A Device for measuring the consumption of electrical energy |
| 04/06/2005 | CN1603850A Automatic test method for maximum output voltage, current and power magnitude of electrical equipment |
| 03/31/2005 | US20050071106 Expandable intelligent electronic device |
| 03/31/2005 | US20050071096 Electric energy meter for an AC mains supply |