ClassID:

171517

G01R21/001 - CPC Classification

Classification description:

Arrangements for measuring electric power or power factor Measuring real or reactive component; Measuring apparent energy

Sub-classes:
Recent Application in this class:
#1
20260140153
2026-05-21

RADIO FREQUENCY POWER DETECTION DEVICE AND SYSTEM

#2
20260029290
2026-01-29

METHOD, APPARATUS AND SYSTEM FOR TESTING INERTIA COEFFICIENT AND DAMPING COEFFICIENT OF GRID-FORMING CONVERTER

#3
20240103052
2024-03-28

NON-INTRUSIVE LOAD MONITORING METHOD AND DEVICE BASED ON PHYSICS-INFORMED NEURAL NETWORK

#4
20230314118
2023-10-05

STRAIN SENSOR-BASED WORKPIECE PROCESSING MONITORING METHOD AND SYSTEM FOR SAME

#5
20230063107
2023-03-02

State dependent and path dependent power estimation

#6
20230036128
2023-02-02

Method and apparatus to assess and control energy efficiency of pump installed in facility of building systems

#7
20210405097
2021-12-30

Reliable hardware metering

#8
20200393863
2020-12-17

Method and apparatus to assess and control energy efficiency of fan installed in facility of building systems

#9
20200134743
2020-04-30

Method for trading electrical energy between small producers and end users

#10
20200116766
2020-04-16

Systems and methods for monitoring a power system

#11
20200003811
2020-01-02

Method of determining mutual voltage sensitivity coefficients between a plurality of measuring nodes of an electric power network

#12
20190097417
2019-03-28

Generator stator ground protection using third harmonic

#13
20180363633
2018-12-20

Abnormality monitoring apparatus and abnormality monitoring method for wind farm

#14
20180299917
2018-10-18

Self-driving building energy engine

#15
20180252751
2018-09-06

System for monitoring electrical power usage of a structure and method of same

#16
20180205226
2018-07-19

ELECTRICAL DEVICE MANAGEMENT SYSTEM

#17
20180136305
2018-05-17

System and method for monitoring electrical power usage in an electrical power infrastructure of a building

#18
20180003746
2018-01-04

Self-calibrating contactless power consumption sensing

#19
20170161847
2017-06-08

POWER MANAGEMENT METHOD AND POWER MANAGEMENT DEVICE FOR A RESIDENTIAL COMPLEX COMPRISING ONE OR MORE RESIDENTIAL UNITS OR FOR AN URBAN DISTRICT

#20
20170122991
2017-05-04

Impedance estimation device and estimation method for power distribution line

#21
20160266183
2016-09-15

Method and apparatus for detecting electronic device connected to smart plug

#22
20160202340
2016-07-14

System and method for monitoring electrical power usage in an electrical power infrastructure of a building

#23
20160161535
2016-06-09

Electromagnetic wave power sensing apparatus and system comprising thereof

#24
20150326018
2015-11-12

Power management apparatus and power management method

#25
20150061638
2015-03-05

Apparatus and method for automatic power metering

#26
20150039254
2015-02-05

Data processing device, data processing method, and program

#27
20150002137
2015-01-01

Self-calibrating contactless power consumption sensing

#28
20140347039
2014-11-27

Systems and methods for measuring electrical power usage in a structure and systems and methods of calibrating the same

#29
20140222665
2014-08-07

ENERGY SEARCH ENGINE METHODS AND SYSTEMS

#30
20140222486
2014-08-07

ENERGY SEARCH ENGINE METHODS AND SYSTEMS

#31
20130275068
2013-10-17

Data processing device, data processing method, and program

#32
20130197835
2013-08-01

CIRCUIT BREAKER METERING SYSTEM

#33
20130134962
2013-05-30

Energy search engine with autonomous control

#34
20130119972
2013-05-16

System and method for monitoring electrical power usage in an electrical power infrastructure of a building

#35
20120072143
2012-03-22

System for monitoring electrical power usage of a structure and method of same

#36
20120072141
2012-03-22

Data processing device, data processing method, and program

#37
20120068692
2012-03-22

Systems and methods for measuring electrical power usage in a structure and systems and methods of calibrating the same

#38
20110074382
2011-03-31

Whole structure contactless power consumption sensing

#39
20090281741
2009-11-12

System, method, and apparatus for monitoring power

#40
20050075076
2005-04-07

Method and apparatus for measuring impedance of electrical component under high interference conditions