| Patents for G01R 21 - Arrangements for measuring electric power or power factor (6,609) |
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| 09/01/2009 | US7583059 Apparatus and method for estimating state of charge of battery using neural network |
| 09/01/2009 | US7582985 Electrical energy saving system |
| 08/28/2009 | CA2655686A1 Watt-hour meter |
| 08/27/2009 | WO2009104166A1 Energy consumption management |
| 08/27/2009 | WO2009103998A2 A method of inference of appliance usage. data processing apparatus and/or computer software |
| 08/27/2009 | WO2009085610A3 Achieving energy demand response using price signals and a load control transponder |
| 08/27/2009 | US20090216469 System for multidimensional data-driven utility baselining |
| 08/26/2009 | EP1889279B1 System and method for analyzing power flow in semiconductor plasma generation systems |
| 08/26/2009 | CN201298055Y A wind power resources real-time monitoring device |
| 08/26/2009 | CN101515004A Integrated electricity meter with switching sampling phase voltage |
| 08/26/2009 | CN101514999A Electric power measurement multifunctional instrument system and method for measurement |
| 08/25/2009 | CA2401579C System and method for on-line monitoring and billing of power consumption |
| 08/20/2009 | WO2009070725A3 Power sensor |
| 08/20/2009 | US20090210178 Systems and methods for producing power consumption data |
| 08/20/2009 | US20090210177 Hand-held system and method for detecting impaired electric power equipment |
| 08/19/2009 | EP2089727A2 Square cell having wide dynamic range and power detector implementing same |
| 08/19/2009 | EP2089726A1 Electricity meter with switch mode voltage supply |
| 08/19/2009 | CN101512583A Utility vending system and method |
| 08/19/2009 | CN101511541A Abrasive compacts |
| 08/19/2009 | CN100530891C Sampling circuit and voltage sampling method for three-level power factor calibration circuit |
| 08/18/2009 | US7577535 System and method for locating and analyzing arcing phenomena |
| 08/13/2009 | WO2009099082A1 Power measuring system, measuring apparatus, load terminal, and device control system |
| 08/13/2009 | WO2009097891A1 Method and device for measuring the electric power of a universal electric motor powered by sinusoidal alternating voltage |
| 08/13/2009 | US20090204348 Power management for proximity-based ad hoc networks |
| 08/13/2009 | US20090201033 Methods for measurement and characterization of interferometric modulators |
| 08/13/2009 | DE10361664B4 Energiezähleranordnung Energy meter arrangement |
| 08/12/2009 | EP2088438A1 Method and device for measuring the electric power of a universal electric motor powered by sinusoidal alternating voltage |
| 08/12/2009 | EP2088437A1 Energy Meter with Power Quality Monitoring and Diagnostic Systems |
| 08/12/2009 | EP2087365A2 Apparatus and method for mapping a wired network |
| 08/12/2009 | CN201289504Y Wide range energy counting device |
| 08/12/2009 | CN100526870C Diagnosis for expected life of emergency power apparatus |
| 08/11/2009 | CA2491400C Dynamic self-configuring metering network |
| 08/06/2009 | US20090198460 Power Supply Circuitry, Collection and Reporting of Power Supply Parameter Information |
| 08/05/2009 | CN201286017Y Data collecting apparatus for high voltage passive compensation equipment |
| 08/05/2009 | CN201284648Y Real-time wireless monitoring device for oil extraction well |
| 08/05/2009 | CN101501507A Apparatus for measuring distortion power quality index and method of operating the apparatus |
| 08/05/2009 | CN100523840C Process for real time recognizing voltage stability of electrified wire netting trough recognizing weak links of electric network |
| 08/05/2009 | CN100523832C Methods and apparatus for phase compensation in electronic energy meters |
| 08/05/2009 | CN100523831C Electronic controlled electro endosmosis |
| 08/05/2009 | CN100523830C Power revision circuit in electrical energy metering and power revision method |
| 08/04/2009 | US7571063 Lighting performance power monitoring system and method with optional integrated light control |
| 08/04/2009 | US7570470 Self-powered communications link for smart circuit breakers |
| 07/30/2009 | US20090192927 Enhanced power outlet system incorporating a smart receptacle |
| 07/30/2009 | US20090192736 System and method for detecting impaired electric power equipment |
| 07/30/2009 | US20090189593 Measuring device and measuring method for measuring the power of a high-frequency signal |
| 07/23/2009 | US20090187344 System, Method, and Computer Program Product for Analyzing Power Grid Data |
| 07/23/2009 | US20090187284 System and Method for Providing Power Distribution System Information |
| 07/23/2009 | US20090184689 Metering system and method of operation |
| 07/22/2009 | CN101487859A High-voltage direct measurement apparatus |
| 07/21/2009 | US7565227 Multi-building control for demand response power usage control |
| 07/16/2009 | WO2009088642A2 System, method and apparatus for monitoring characteristics of rf power |
| 07/16/2009 | US20090182518 Method of Calculating Power Flow Solution of a Power Grid that Includes Generalized Power Flow Controllers |
| 07/16/2009 | DE102007041247B4 Vorrichtung, System und Anordnung zur signaltechnischen Verarbeitung einer Spannung Apparatus, system, and apparatus for signal-related processing of a voltage |
| 07/15/2009 | CN201273920Y Power factor meter with alarming function |
| 07/15/2009 | CN101482580A Electric energy gauging method and apparatus |
| 07/14/2009 | US7561977 Total home energy management system |
| 07/09/2009 | WO2009085610A2 Achieving energy demand response using price signals and a load control transponder |
| 07/09/2009 | WO2009083445A1 Apparatus and method for controlling the reactive power from a cluster of wind turbines connected to a utility grid |
| 07/09/2009 | US20090177595 Bidirectional metering and control of electric energy between the power grid and vehicle power systems |
| 07/09/2009 | US20090177421 Electric energy meter |
| 07/09/2009 | US20090177410 Real-time monitoring device and operation method thereof |
| 07/09/2009 | US20090174393 Apparatus, system, and method determining voltage, current, and power in a switching regulator |
| 07/09/2009 | DE202004021613U1 Elektronischer Elektrizitätszähler bzw. Rundsteuerempfänger für Elektrizitätszähler Electricity meter or ripple control receiver for electricity meters |
| 07/08/2009 | CN201269904Y Time division passive electricity metering device |
| 07/08/2009 | CN101477147A Circuit for detecting radio frequency power |
| 07/07/2009 | US7557729 Method and system for validation, estimation and editing of daily meter read data |
| 07/02/2009 | WO2009082726A1 Method and apparatus for monitoring voltage in a meter network |
| 07/02/2009 | WO2009052121A4 Electrical energy usage monitoring system |
| 07/02/2009 | US20090171597 Evaluation method |
| 07/02/2009 | CA2710623A1 Method and apparatus for monitoring voltage in a meter network |
| 07/01/2009 | EP2074562A1 Optimisation of use or provision of a resource or service |
| 06/30/2009 | US7554320 Intelligent electronic device for providing broadband internet access |
| 06/25/2009 | US20090164151 Measurement device and monitoring system for processing units |
| 06/25/2009 | US20090164150 Air-cooled power electronics service algorithm |
| 06/25/2009 | DE102007062287A1 Verfahren zum Herstellen eines Druckprodukts A method for producing a printed product |
| 06/24/2009 | EP2073342A1 Method and device for calculating the electric active power of one or several consumer branch pipes |
| 06/24/2009 | EP1996953B1 Measuring device and measuring method for measuring the power envelope and the average power |
| 06/24/2009 | CN101464479A Electric energy meter |
| 06/24/2009 | CN100504409C Automatic test method for maximum output voltage, current and power of electrical equipment |
| 06/18/2009 | US20090157334 Measurement of power consumption within an integrated circuit |
| 06/18/2009 | US20090157333 Method and system for automated energy usage monitoring within a data center |
| 06/18/2009 | US20090157332 Instrument transformer and apparatus for detecting an amount of power using the same |
| 06/17/2009 | EP2069805A1 Integrated energy metering system |
| 06/17/2009 | CN101458276A Electric quantity computation method and apparatus and electric meter controlling equipment |
| 06/16/2009 | US7548223 Reduced cost automatic meter reading system and method using locally communicating utility meters |
| 06/16/2009 | US7548074 Micromechanical microwave power meter |
| 06/11/2009 | US20090150100 Metering assembly and customer load panel for power delivery |
| 06/10/2009 | CN100498348C Two-end heated microwave power sensor |
| 06/09/2009 | US7546214 System for power sub-metering |
| 06/09/2009 | US7545156 Test circuit and test method that includes supplying a current to a plurality of light-receiving elements |
| 06/04/2009 | WO2009070725A2 Power sensor |
| 06/04/2009 | DE102007056468A1 Messsignalverarbeitungseinrichtung und Verfahren zur Verarbeitung von zumindest zwei Messsignalen Measurement signal processing device and method for processing at least two measurement signals |
| 06/04/2009 | CA2706561A1 Power sensor |
| 06/03/2009 | EP2066017A1 Method of operating a wind energy system with a voltage-dependent control for an electric reactive quantity to be provided |
| 06/03/2009 | EP1108217B1 Methods and apparatus for controlling data flow in electricity meter |
| 06/02/2009 | US7542824 Air conditioning control device |
| 05/28/2009 | WO2009065294A1 Auto-metering unit for power distribution transformer |
| 05/28/2009 | US20090138220 Power-aware line intervention for a multiprocessor directory-based coherency protocol |
| 05/28/2009 | US20090138219 Estimating power consumption of computing components configured in a computing system |
| 05/28/2009 | DE102007056268A1 Leistungsmessung mit einem Signalgenerator Performance measurement with a signal generator |