| Patents for G01R 21 - Arrangements for measuring electric power or power factor (6,609) |
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| 12/10/1986 | EP0203947A1 A static, electric apparatus for measuring power and energy drawn from a power supply network |
| 12/09/1986 | US4628257 Wattmeter |
| 12/09/1986 | US4628256 Thermocouple power meter |
| 12/09/1986 | US4627442 Microwave thermographic apparatus |
| 12/03/1986 | EP0203131A1 A wattmeter circuit |
| 12/03/1986 | EP0052635B1 Electricity meter |
| 12/02/1986 | US4627000 Apparatus and method for copying data from one electronic demand register to another |
| 11/25/1986 | US4625163 Display temperature compensator for electric meter |
| 11/20/1986 | EP0201593A1 Electrical measurement process. |
| 11/19/1986 | CN85104002A Utility method for full functional measurement of true value of alternating electric parameter |
| 11/18/1986 | US4623838 Analog-digital conversion circuit apparatus connectable to a microcomputer for measuring electric voltage and current of a vibrator of an ultrasonic wave oscillator |
| 11/12/1986 | EP0201019A1 Static electricity-meter and method for its calibration |
| 11/11/1986 | US4622640 Power load survey apparatus |
| 11/05/1986 | CN85103529A Voltage-frequency conversion circuit |
| 11/04/1986 | US4621330 Programming system for programmable time registering electric energy meters |
| 10/29/1986 | EP0199051A1 Device for detection and evaluation of pulsed measuring results |
| 10/28/1986 | US4620157 Reactive power to DC signal converter |
| 10/28/1986 | US4620150 Electric meter with electronic rolling demand register |
| 10/28/1986 | US4620149 Method and system for recording and displaying input data signals |
| 10/15/1986 | CN85103429A Electronic type electric energy metering apparatus |
| 10/09/1986 | WO1986005887A1 Power meter with display of power consumed and cost of power consumed |
| 10/08/1986 | EP0196846A1 Method and apparatus for controlling an electric A.C. motor |
| 10/08/1986 | EP0196408A1 Energy counter measuring system |
| 10/08/1986 | EP0076809B1 Multiple rate electrical energy metering apparatus |
| 10/07/1986 | CA1212438A1 Dual mode meter reading apparatus |
| 09/30/1986 | US4615009 Electronic energy and power monitoring apparatus |
| 09/02/1986 | US4609983 Apparatus for determining active and/or reactive current and/or the power thereof in an inverter with a given input d-c voltage, especially in a pulsed inverter |
| 08/27/1986 | CN85102318A Universal electricity-saver |
| 08/26/1986 | US4608563 Remote monitoring induction telemetering system |
| 08/06/1986 | EP0189754A1 Power measuring apparatus |
| 08/06/1986 | CN85203305U Plier-type power factor meter |
| 07/22/1986 | CA1208294A1 Sensing switch for a magnetically coupled communications port |
| 07/02/1986 | EP0101727B1 Multi-function electricity metering method |
| 07/02/1986 | CA1207028A Power measurement in an electrical distribution system having three or more wires |
| 06/24/1986 | US4596951 Electronic circuit for measuring AC electrical energy |
| 06/17/1986 | US4595988 Electronic meter for measuring active and reactive energies in a three-phase network |
| 06/10/1986 | US4594547 Mark-space amplitude modulator for measuring reactive power consumption or reactive energy consumption |
| 06/10/1986 | US4594545 Operation of electronic demand register following a power outage |
| 06/10/1986 | CA1205864A1 Gain switching device with reduced error for watt meter |
| 06/05/1986 | WO1986003302A1 A wattmeter circuit |
| 06/05/1986 | WO1986003301A1 A static, electric apparatus for measuring power and energy drawn from a power supply network |
| 06/04/1986 | EP0182799A1 Memory interface for electronic demand register of an electric meter |
| 06/04/1986 | CN85201770U Watt consumption meter for a non-linear resistor |
| 05/27/1986 | US4591782 Power supply and power monitor for electric meter |
| 05/22/1986 | WO1986003013A1 Electrical measurement process |
| 05/21/1986 | EP0181719A1 Electronic electricity meters |
| 05/07/1986 | EP0179848A1 Operation of electronic demand register following a power outage |
| 05/07/1986 | EP0179847A1 Electronic demand register |
| 04/30/1986 | EP0179123A1 Power supply and power monitor for electric meter |
| 04/23/1986 | EP0178804A2 Remote meter reading |
| 04/16/1986 | EP0178067A1 Watthour meter with demand responsive load control capability |
| 04/15/1986 | CA1203285A1 Solid-state electrical-power demand register and method |
| 04/09/1986 | EP0176634A1 Device for monitoring consumption of electrical current |
| 04/08/1986 | US4581705 Method and machine for metering electric parameters |
| 04/02/1986 | EP0176338A1 Time-of-use-meter with a calendar of cyclic events |
| 04/01/1986 | CA1202680A1 Rf wattmeter |
| 03/25/1986 | US4578639 Metering system for measuring parameters of high AC electric energy flowing in an electric conductor |
| 03/18/1986 | US4577154 Pulse width modulation circuit and integration circuit of analog product using said modulation circuit |
| 03/11/1986 | CA1201772A1 Electric utility automated distribution apparatus with improved data display |
| 03/04/1986 | CA1201483A1 Electro-optical sensor for watt-hour meter |
| 02/25/1986 | US4573141 Memory interface for communicating between two storage media having incompatible data formats |
| 02/25/1986 | US4573037 Analog-to digital converter and method |
| 02/18/1986 | US4571692 Electronic demand register |
| 01/28/1986 | CA1199971A1 Electronic watthour meter |
| 01/22/1986 | EP0035025B1 System for central reading and registration of customers' power consumption |
| 01/21/1986 | US4565967 For use in quality control of the manufacture |
| 01/08/1986 | EP0167299A2 Monitoring power usage |
| 01/07/1986 | CA1199070A1 Electronic watt/var transducer |
| 12/31/1985 | US4562548 Alarm limit recentering arrangement for maintaining uniform alarm limit tolerances about a sloping regulation characteristic |
| 12/31/1985 | US4562424 Circuit for integrating analog signal and converting it into digital signal |
| 12/31/1985 | CA1198776A1 Electrical joule meter and accumulator |
| 12/04/1985 | EP0163460A1 A system for measuring the electrical consumption of a load |
| 12/03/1985 | US4556843 Electronic solid state Q-hour meter and/or combination Q-hour and kilowatt-hour meter |
| 11/21/1985 | EP0161447A1 Electronic energy consumption meter |
| 11/06/1985 | EP0160187A1 Method for evaluating analogous output signals of current and voltage converters and arrangement for the realisation of this method |
| 10/24/1985 | WO1985004738A1 Memory interface for electronic demand register of an electric meter |
| 10/24/1985 | WO1985004725A1 Electronic demand register |
| 10/24/1985 | WO1985004724A1 Operation of electronic demand register following a power outage |
| 10/24/1985 | WO1985004723A1 Power supply and power monitor for electric meter |
| 10/23/1985 | EP0159279A1 Method for the control of the impedance match in low-noise receiver circuits, and miniature microwave thermometer utilizing this method |
| 10/22/1985 | CA1195735A1 In-phase voltage elimination circuit for hall element |
| 10/15/1985 | US4547728 RF Wattmeter |
| 10/08/1985 | US4546313 Peak power ratio generator |
| 10/02/1985 | EP0156533A1 Metering system for measuring parameters of high ac electric energy flowing in an electric conductor |
| 09/24/1985 | CA1194125A1 Power outage timer |
| 09/24/1985 | CA1194124A1 Solid state watthour meter |
| 09/18/1985 | EP0075555A4 System for monitoring utility usage. |
| 09/17/1985 | US4542469 Programmable demand register with two way communication through an optical port and external reading devices associated therewith |
| 09/17/1985 | US4542354 Delta-sigma pulse modulator with offset compensation |
| 09/04/1985 | EP0153401A1 Static kwh meter. |
| 08/28/1985 | EP0152770A1 Supervised control device |
| 08/20/1985 | US4536762 Matrix encoder for sensor arrays |
| 08/13/1985 | US4535287 Electronic watt/watthour meter with automatic error correction and high frequency digital output |
| 07/23/1985 | US4531089 Electric power detecting circuit and gain control circuit using the same |
| 07/17/1985 | EP0148330A2 Integrable Hall element |
| 07/10/1985 | EP0048746B1 Automatic meter reading system |
| 07/02/1985 | CA1189907A1 Multiple rate metering system |
| 07/01/1985 | EP0072857A4 Data communication system. |
| 06/25/1985 | US4525669 Power measurement in an electrical distribution system having three or more wires |
| 06/25/1985 | US4525668 System for measuring electrical output or energy |