ClassID:

165096

G01F1/6965 - CPC Classification

Classification description:

Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using thermal effects; Circuits therefor, e.g. constant-current flow meters comprising means to store calibration data for flow signal calculation or correction

Recent Application in this class:
#1
20260063457
2026-03-05

APPARATUS AND METHOD FOR MEASURING FLUID FLOW

#2
20250290782
2025-09-18

GAS FLOW METER FOR LOW PRESSURE AND LOW TEMPERATURE SERVICE

#3
20250060234
2025-02-20

ENCLOSED BATTERY EMISSIONS DILUTION AND SAMPLING

#4
20240192037
2024-06-13

SYSTEM AND METHOD OF DETERMINING RESERVOIR FLUID FLOW CONDITION AND COMPOSITION DOWNHOLE

#5
20240153831
2024-05-09

APPARATUS AND METHOD OF MEASURING AIR CURRENTS ON SURFACE OF SUBSTRATE

#6
20240151566
2024-05-09

Physical Quantity Detection Device, Signal Processing Device, and Signal Processing Method

#7
20240077347
2024-03-07

SENSOR DEVICE

#8
20230408087
2023-12-21

Electronic Control Device and Flow Rate Measurement System

#9
20230236052
2023-07-27

Thermal flow sensor and method for operating same

#10
20230194321
2023-06-22

POLYMER-BASED CORIOLIS MASS FLOW SENSOR FABRICATED THROUGH CASTING

#11
20230041777
2023-02-09

Gas meter and associated methods

#12
20220018697
2022-01-20

PHYSICAL QUANTITY MEASUREMENT DEVICE

#13
20210396563
2021-12-23

Physical quantity measurement device

#14
20210302211
2021-09-30

Physical quantity detecting device

#15
20210270202
2021-09-02

Internal combustion engine control device

#16
20210140806
2021-05-13

Composite panel edge treatments and joints and cargo body having same

#17
20210116282
2021-04-22

Flow sensor

#18
20210054799
2021-02-25

GAS FLOW RATE MEASUREMENT DEVICE AND GAS FLOW RATE MEASUREMENT METHOD

#19
20210048834
2021-02-18

Electronic apparatus and controlling method using corrected sensor values

#20
20210033441
2021-02-04

Measurement control device and flow measurement device

#21
20210003438
2021-01-07

Flow rate sensor correction device, flow rate sensor, flow rate control device, program recording medium on which is recorded a program for a correction device, and correction method

#22
20210003089
2021-01-07

Method for determining an air mass in an internal combustion engine

#23
20200400474
2020-12-24

Detection device

#24
20200378814
2020-12-03

Gas meter and associated methods

#25
20200340840
2020-10-29

Air flow rate measurement device

#26
20200319006
2020-10-08

Polymer-based Coriolis mass flow sensor fabricated through casting

#27
20200240822
2020-07-30

Thermal flow meter including a cover mounted on a housing and where a bypass passage is formed by the cover and a bypass passage trench

#28
20200158547
2020-05-21

Quantity measurement device with detection unit contacting housing

#29
20200124450
2020-04-23

Device for measuring speed or flow of gas

#30
20200049541
2020-02-13

Method and apparatus for measuring the flow rate of a shielding gas mixture

#31
20200003597
2020-01-02

AIR FLOW MEASURING DEVICE

#32
20190383655
2019-12-19

Flow rate measurement system

#33
20190331516
2019-10-31

APPARATUS AND METHOD FOR FLUID FLOW MEASUREMENT

#34
20190331515
2019-10-31

Thermal mass flow sensor with improved accuracy

#35
20190310118
2019-10-10

Temperature sensing system and flow metering apparatus comprised thereof

#36
20190301911
2019-10-03

Composite panel edge treatments and joints and cargo body having same

#37
20190301910
2019-10-03

Composite panel edge treatments and joints and cargo body having same

#38
20190301909
2019-10-03

THERMAL FLOW SENSOR DEVICE AND FLOW RATE CORRECTION METHOD

#39
20190285453
2019-09-19

Airflow sensor with gas composition correction

#40
20190226891
2019-07-25

Method of operating a fluid meter, and fluid meter

#41
20190187730
2019-06-20

Mass Flow Controller

#42
20190162569
2019-05-30

Thermal flow meter including a cover mounted on a housing and where a bypass passage is formed by the cover and a bypass passage trench

#43
20190136779
2019-05-09

Apparatus for improving engine performance

#44
20190086248
2019-03-21

Thermal type flowmeter using quadratic function of logarithm of flow rate

#45
20190078920
2019-03-14

Composite panel edge treatments and joints and cargo body having same

#46
20190071135
2019-03-07

Composite panel edge treatments and joints and cargo body having same

#47
20190064125
2019-02-28

Measurement of fluid flow

#48
20190033110
2019-01-31

Thermal flowmeter and flow rate compensation method

#49
20180348077
2018-12-06

Fluid property sensor with heat loss compensation and operating method thereof

#50
20180306613
2018-10-25

Fluid sampling system and fluid sensing device thereof

#51
20180299309
2018-10-18

Air Flow Rate Measuring Device

#52
20180299307
2018-10-18

Thermal, flow measuring device and arrangement with a tube or pipe and the thermal, flow measuring device

#53
20180252565
2018-09-06

Airflow meter

#54
20180164137
2018-06-14

Gas meter and associated methods

#55
20180017422
2018-01-18

Thermal flow meter

#56
20170370752
2017-12-28

Thermal flow meter with a case having an external terminal for outputting an electric signal

#57
20170363455
2017-12-21

Thermal flow meter including a cover mounted on a housing and where a bypass passage is formed by the cover and bypass passage trench

#58
20170345776
2017-11-30

Thermal flow meter

#59
20170343402
2017-11-30

Flow rate control device

#60
20170343401
2017-11-30

Thermal, flow measuring device with diagnostic function

#61
20170307428
2017-10-26

Thermal, Flow Measuring Device

#62
20170234455
2017-08-17

Pressure type flow control system with flow monitoring, and method for detecting anomaly in fluid supply system and handling method at abnormal monitoring flow rate using the same

#63
20170176230
2017-06-22

Thermal flow meter with thin resin portion sealing temperature detection element

#64
20170167422
2017-06-15

Method and device for ascertaining a gas-mass flow in a combustion engine

#65
20170045393
2017-02-16

Operating a high accuracy thermal anemometer flow meter in gas stream containing liquid droplets

#66
20170023389
2017-01-26

Flow rate measuring apparatus

#67
20160370808
2016-12-22

Pressure type flow control system with flow monitoring

#68
20160327420
2016-11-10

Temperature sensing system and flow metering apparatus comprised thereof

#69
20160273949
2016-09-22

Physical amount measurement apparatus mounted integrally with flow rate measurement apparatus, and physical amount measurement method

#70
20160202099
2016-07-14

Air mass flow meter

#71
20160161951
2016-06-09

Determination of fluid composition in a mass flow controller

#72
20160131512
2016-05-12

Thermal flow meter, temperature measurement device, and thermal flow meter program

#73
20160011031
2016-01-14

Hot-type fluid measurement device with electronic elements

#74
20160011028
2016-01-14

Enhanced differential thermal mass flow meter assembly and methods for measuring a mass flow using said mass flow meter assembly

#75
20160003686
2016-01-07

INTAKE AIR TEMPERATURE SENSOR AND FLOW MEASUREMENT DEVICE

#76
20150268264
2015-09-24

Thermistor based measurement system

#77
20150226596
2015-08-13

Device and method for recalibrating an exhaust gas mass flow sensor

#78
20150192441
2015-07-09

Thermal flow meter with temperature detection element positioned on protrusion of circuit package

#79
20150187708
2015-07-02

Thermal flow meter

#80
20150185060
2015-07-02

Thermal flow meter with diaphragm forming a reduced pressure sealed space

#81
20150185058
2015-07-02

Thermal flow meter including fixation wall and concave recess portion for storing end of supporting body

#82
20150177038
2015-06-25

Thermal flow meter including a protrusion protruding from a circuit package body and a temperature detection element buried in the protrusion

#83
20150168193
2015-06-18

Thermal flow meter with a protrusion having an orifice surface and recovery surface provided on a wall surface of a bypass passage

#84
20150168192
2015-06-18

Thermal flow meter

#85
20150168191
2015-06-18

Thermal flow meter capable of measuring flow rates in forward flow and reverse flow directions

#86
20150160058
2015-06-11

Thermal flow meter with a circuit package having an air flow measurement circuit for measuring an air flow

#87
20150160054
2015-06-11

Thermal flow meter

#88
20150135824
2015-05-21

Thermal flow meter with bypass passage including an outer circumference path and an inner circumference path

#89
20150135823
2015-05-21

Thermal flow meter with thin resin portion sealing temperature detection element

#90
20150122012
2015-05-07

Thermal flow meter including a cover mounted on a housing and where a bypass passage is formed by the cover and a bypass passage trench

#91
20150122011
2015-05-07

Thermal flow meter with drainage passage at inlet of bypass passage

#92
20150122010
2015-05-07

Thermal flow meter with lead having a bent portion

#93
20150096366
2015-04-09

Correction of a temperature measurement of a thermometric resistance-type temperature probe

#94
20150075277
2015-03-19

Method for thermally determining mass flow of a gaseous medium and thermal mass flow meter

#95
20150027558
2015-01-29

System and method for improving the accuracy of a rate of decay (ROD) measurement in a mass flow controller

#96
20150020587
2015-01-22

Temperature compensation module for a fluid flow transducer

#97
20140373621
2014-12-25

Method for determining at least one gas parameter of a flowing gas

#98
20140352423
2014-12-04

Operating a high accuracy thermal anemometer flow meter in gas stream containing liquid droplets

#99
20140298919
2014-10-09

Flow sensor with improved linear output

#100
20140230911
2014-08-21

Pressure type flow control system with flow monitoring, and method for detecting anomaly in fluid supply system and handling method at abnormal monitoring flow rate using the same

#101
20140216152
2014-08-07

Characterizing multiphase fluid flow

#102
20140208764
2014-07-31

Systems and methods for measuring a flow profile in a turbine engine flow path

#103
20140190270
2014-07-10

Gas flow rate measuring apparatus for minimizing temperature dependent errors

#104
20140182692
2014-07-03

Pressure type flow control system with flow monitoring

#105
20140116128
2014-05-01

Method and apparatus for measuring the flow rate of a liquid

#106
20140076044
2014-03-20

Thermal flow sensor and method of generating flow rate detection signal by the thermal flow sensor

#107
20130239967
2013-09-19

Flow rate compensation for transient thermal response of hot-wire anemometers

#108
20130153040
2013-06-20

Flow rate control using mass flow rate control device

#109
20130152699
2013-06-20

Gas flow rate measurement device

#110
20130107905
2013-05-02

Calibrated airflow sensor facilitating monitoring of electronic system cooling

#111
20130098150
2013-04-25

Flow-meter probe

#112
20130092256
2013-04-18

FLOW RATE CONTROL DEVICE, DIAGNOSTIC DEVICE FOR USE IN FLOW RATE MEASURING MECHANISM OR FOR USE IN FLOW RATE CONTROL DEVICE INCLUDING THE FLOW RATE MEASURING MECHANISM AND RECORDING MEDIUM HAVING DIAGNOSTIC PROGRAM RECORDED THEREON FOR USE IN THE SAME

#113
20120330574
2012-12-27

Pump tester

#114
20120330573
2012-12-27

Pump tester

#115
20120325012
2012-12-27

Flow meter with digital temperature compensation

#116
20120318058
2012-12-20

Heat conduction-type sensor for calibrating effects of temperature and type of fluid, and thermal flow sensor and thermal barometric sensor using this sensor

#117
20120291533
2012-11-22

Flow-rate measuring apparatus

#118
20120290268
2012-11-15

Modular sensor assembly including removable sensing module

#119
20120215466
2012-08-23

Pump tester

#120
20120203477
2012-08-09

Pump tester

#121
20120166124
2012-06-28

Sensor response calibration for linearization

#122
20120079889
2012-04-05

Air flow quantity measuring apparatus for internal combustion engine

#123
20110315114
2011-12-29

System and method for measuring engine airflow

#124
20110271768
2011-11-10

Air flow measurement apparatus

#125
20110257898
2011-10-20

THERMAL DIFFUSIVITY MEASURING SYSTEM, CONCENTRATION OF CALORIC COMPONENT MEASURING SYSTEM, AND FLOW RATE MEASURING SYSTEM

#126
20110224920
2011-09-15

Pump tester

#127
20110209526
2011-09-01

Method and thermal, flow measuring device for determining and/or monitoring at least one variable dependent on at least the chemical composition of a measured medium

#128
20110191038
2011-08-04

MASS FLOW CONTROLLER WITH IMPROVED DYNAMIC RESPONSE

#129
20110125445
2011-05-26

Thermal type mass flow meter, and thermal type mass flow control device

#130
20110107832
2011-05-12

Thermal type flow sensor having a humidity detection portion and an air flow detecting portion

#131
20110004422
2011-01-06

Internal combustion engine control apparatus

#132
20100275685
2010-11-04

Thermal air flowmeter

#133
20100218765
2010-09-02

Flow rate compensation for transient thermal response of hot-wire anemometers

#134
20100147068
2010-06-17

Method and measuring system for determining and/or monitoring an aggregate state change of a measured medium on a thermal, flow measuring device

#135
20100139390
2010-06-10

Thermal flow measuring apparatus including RTD sensor

#136
20100139360
2010-06-10

Determining the flow rate of air in a computer system

#137
20100138052
2010-06-03

Device for Determining and/or Monitoring the Mass Flow Rate of a Gaseous Medium

#138
20100049461
2010-02-25

Mass flow controller with improved dynamic

#139
20100000608
2010-01-07

Flow rate control using mass flow rate control device

#140
20090312876
2009-12-17

Mass flow controller

#141
20090299657
2009-12-03

Air flow measurement device and air flow correction method

#142
20090222231
2009-09-03

Method and device for correcting a signal of a sensor

#143
20090212847
2009-08-27

System and method for sensor thermal drift offset compensation

#144
20090207564
2009-08-20

Temperature-based monitoring method and system for determining first and second fluid flow rates through a heat exchanger

#145
20090201969
2009-08-13

Circuit arrangement to adjust and calibrate a MEMS-sensor device for flow measurement of gases or liquids

#146
20090164163
2009-06-25

Integrated micromachined thermal mass flow sensor and methods of making the same

#147
20090164050
2009-06-25

Diagnostics for mass flow control

#148
20090099791
2009-04-16

Method and apparatus for monitoring a thermal management system of an electro-mechanical transmission

#149
20090056410
2009-03-05

Self diagnostic measurement method to detect microbridge null drift and performance

#150
20090000396
2009-01-01

Device and method of detecting flow rate/liquid kind, and device and method of detecting liquid kind

#151
20080271545
2008-11-06

Universal sensor controller for a thermal anemometer

#152
20080245145
2008-10-09

Flow detector device with self check

#153
20080196487
2008-08-21

Intake air amount calculating system and method of internal combustion engine

#154
20080195331
2008-08-14

Method for determining the gas volume flow in gas recirculation at a filling station

#155
20080092645
2008-04-24

Thermal type flow rate measurement apparatus

#156
20080066541
2008-03-20

Universal sensor controller for a thermal anemometer

#157
20080000283
2008-01-03

Flow sensor signal conversion

#158
20070260412
2007-11-08

Attitude insensitive flow device system and method

#159
20070251297
2007-11-01

Method and apparatus for controlling mass flow rate of recycled anode tail gas in solid oxide fuel cell system

#160
20070179728
2007-08-02

Flow measuring device

#161
20070162243
2007-07-12

Method for correcting sensor signal

#162
20070125169
2007-06-07

Thermal flowmeter for measuring a flow rate of fluid

#163
20070089503
2007-04-26

Thermal airflow meter

#164
20060217901
2006-09-28

Flowmeter and flowmeter system

#165
20060213263
2006-09-28

Device and method of detecting flow rate/liquid kind, and device and method of detecting liquid kind

#166
20060212250
2006-09-21

Heating resistor type air flow rate measuring device and method of correcting measurement error

#167
20060212249
2006-09-21

Increased accuracy gas energy meter

#168
20060179936
2006-08-17

Thermal gas flowmeter comprising a gas quality indicator

#169
20060173642
2006-08-03

Apparatus and method for pressure fluctuation insensitive mass flow control

#170
20060155496
2006-07-13

Automatic thermal conductivity compensation for fluid flow sensing using chemometrics

#171
20060096574
2006-05-11

Air flow measuring device formed integrally with electronically controlled throttle body

#172
20060016254
2006-01-26

Intake air flow detecting device for internal combustion engine

#173
20060009926
2006-01-12

Attitude insensitive flow device system and method

#174
20050268711
2005-12-08

Heating resistor type air flow meter

#175
20050261842
2005-11-24

Flowmeter

#176
20050229695
2005-10-20

Flow metering

#177
20050205774
2005-09-22

System and method for mass flow detection device calibration

#178
20050154526
2005-07-14

Intake-air measuring apparatus for internal combustion engine

#179
20050145007
2005-07-07

Flowmeter in-situ calibration verification system

#180
20050132795
2005-06-23

Thermal type gas flow measuring instrument

#181
20050126306
2005-06-16

Flow sensor signal conversion

#182
20050109121
2005-05-26

Flowmeter and flowmeter system

#183
20050109100
2005-05-26

Thermal mass flowmeter apparatus and method with temperature correction

#184
20050034532
2005-02-17

Dynamic mixed gas flowmeter