ClassID:

165095

G01F1/696 - 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

Sub-classes:
Recent Application in this class:
#1
20260002806
2026-01-01

THERMAL FLOW SENSOR FOR DETERMINING A FLOW RATE OF A FLUID

#2
20250303080
2025-10-02

ELECTRONIC CIGARETTE

#3
20250297876
2025-09-25

FLUID FLOW VELOCITY MEASUREMENT VIA THERMAL CONDUCTION

#4
20250251266
2025-08-07

Method for measuring flow velocity distribution of groundwater using distributed optical fiber with active heating

#5
20250198818
2025-06-19

PROBE APPARATUS AND METHOD FOR MEASURING CRYOGENIC EXHAUST FLOW

#6
20250188717
2025-06-12

NON-INVASIVE THERMAL DISPERSION FLOW METER WITH FLUID LEAK DETECTION AND GEO-FENCING CONTROL

#7
20250172422
2025-05-29

WATER METERING SYSTEM

#8
20250137951
2025-05-01

THERMAL CONDUCTIVITY DETECTOR BASED GAS SENSOR AND ASSOCIATED METHOD

#9
20250130084
2025-04-24

FLUID FLOW METERS

#10
20250093188
2025-03-20

AIR FLOW METER

#11
20250085147
2025-03-13

OUT OF PRODUCT SENSOR

#12
20250076094
2025-03-06

FLUID FLOW SENSING APPARATUS AND RELATED METHOD

#13
20250050015
2025-02-13

FORCE SENSING RESISTOR FOR LIQUID LOW-VOLUME DETECTION AND OCCLUSION SENSING AND METHODS AND APPARATUSES FOR FLOW SENSING ALONG FLUID PATH IN FLUID DELIVERY DEVICE

#14
20240361164
2024-10-31

FLOW SENSING DEVICE AND METHOD

#15
20240319147
2024-09-26

GAS MONITORING DEVICE FOR GAS CHROMATOGRAPH

#16
20240280391
2024-08-22

FLOW-RATE MONITORING DEVICE, FLOW-RATE MONITORING METHOD, AND COMPUTER-READABLE STORAGE MEDIUM

#17
20240271976
2024-08-15

METHOD AND CONTROLLER FOR CONTROLLING A FLUID-FLOW SENSOR

#18
20240219216
2024-07-04

THERMAL SENSOR AND METHOD FOR OPERATING THE THERMAL SENSOR

#19
20240200997
2024-06-20

OMNIDIRECTIONAL FLOW SENSOR

#20
20240192038
2024-06-13

FLUID FLOW VELOCITY MEASUREMENT VIA THERMAL CONDUCTION

#21
20240191480
2024-06-13

Non-invasive thermal dispersion flow meter with fluid leak detection and geo-fencing control

#22
20240175735
2024-05-30

SAP FLOW SENSOR AND METHOD OF DETERMINING SAP FLOW VELOCITY

#23
20240159601
2024-05-16

MASS FLOW SENSOR HAVING AN AIRFOIL

#24
20240141629
2024-05-02

NON-INVASIVE PLUMBING SENSOR SYSTEM

#25
20240060278
2024-02-22

Thermal dispersion flow meter with fluid leak detection and freeze burst prevention

#26
20240058557
2024-02-22

ELECTRONIC CIGARETTE

#27
20240050655
2024-02-15

Force sensing resistor for liquid low-volume detection and occlusion sensing and methods and apparatuses for flow sensing along fluid path in fluid delivery device

#28
20240027247
2024-01-25

Systems and methods for estimating flow rate in a liquid cooling system

#29
20230349742
2023-11-02

PACKAGED FLOW SENSOR

#30
20230349740
2023-11-02

Ultrasonic fluid meter incorporating two pressure sensors

#31
20230332936
2023-10-19

Thermal flow meter

#32
20230296418
2023-09-21

Flow sensor element

#33
20230221269
2023-07-13

SENSOR

#34
20230194320
2023-06-22

VIRTUAL FLOW RATE TEST

#35
20230101259
2023-03-30

Thermopile sensor

#36
20230079363
2023-03-16

Mass flow sensor having an airfoil

#37
20220404184
2022-12-22

FLOW DETECTION CIRCUIT

#38
20220397437
2022-12-15

Physical quantity detection device

#39
20220291036
2022-09-15

Ultrasound and thermal massflow in one flow channel

#40
20220276083
2022-09-01

Flow metering system

#41
20220214198
2022-07-07

Flow rate measurement device

#42
20220214196
2022-07-07

Air flow rate meter

#43
20220155119
2022-05-19

AIR FLOW RATE MEASUREMENT DEVICE

#44
20220146698
2022-05-12

Methods for detecting potential faults in cooling path of pet imaging system

#45
20220146292
2022-05-12

Flow sensing device

#46
20220128388
2022-04-28

Water metering system

#47
20220042837
2022-02-10

Flow sensor for sensor network in controlled environment agriculture

#48
20220011145
2022-01-13

Flow rate sensor device

#49
20210404383
2021-12-30

System and method for detection of excessive flow in a fluid system

#50
20210379281
2021-12-09

Force sensing resistor for liquid low-volume detection and occlusion sensing and methods and apparatuses for flow sensing along fluid path in fluid delivery device

#51
20210356305
2021-11-18

Flow control module with a thermal mass flow meter

#52
20210310841
2021-10-07

Method and sensor for detecting flow rates in corrosive liquid

#53
20210270661
2021-09-02

Measuring-device system and measuring assembly formed therewith

#54
20210247219
2021-08-12

Physical quantity detection device

#55
20210239501
2021-08-05

MEASURING DEVICE AND MEASURING PROBE FOR A FLOWING FLUID

#56
20210223798
2021-07-22

Systems and methods for flow sensor back pressure adjustment for mass flow controller

#57
20210223797
2021-07-22

Systems and methods for flow sensor back pressure adjustment for mass flow controller

#58
20210223117
2021-07-22

Physical quantity measurement device having a stepped portion to prevent particles from entering the measurement flow channel

#59
20210220581
2021-07-22

ELECTRONIC CIGARETTE WITH MASS AIR FLOW SENSOR

#60
20210215519
2021-07-15

Gas flow measuring circuit and gas flow sensor

#61
20210190562
2021-06-24

Non-invasive process fluid flow indication using temperature difference

#62
20210190561
2021-06-24

Physical quantity measurement device and method for manufacturing physical quantity measurement device

#63
20210190560
2021-06-24

Physical quantity measurement device

#64
20210172775
2021-06-10

Nanowires integration for real-time compensation

#65
20210148743
2021-05-20

Thermal-type flowmeter

#66
20210131847
2021-05-06

Thermal flow rate meter

#67
20210116283
2021-04-22

Flow rate measurement device and embedded gas meter

#68
20210116280
2021-04-22

Flow sensor

#69
20210080304
2021-03-18

Flow rate measuring apparatus

#70
20210064067
2021-03-04

Parasitic flow correction method and apparatus

#71
20210063217
2021-03-04

Air flow measurement apparatus

#72
20210054798
2021-02-25

Air flow measurement device

#73
20210025744
2021-01-28

Water metering system

#74
20210013012
2021-01-14

Performance calculation method and processing apparatus

#75
20200348159
2020-11-05

Thermal flow sensor for determining the temperature and the flow velocity of a flowing measuring medium

#76
20200340839
2020-10-29

AIR FLOW RATE MEASUREMENT DEVICE

#77
20200326217
2020-10-15

Thermal flowmeter

#78
20200318562
2020-10-08

Fuel type prediction from mass flow measurements and thermal conductivity sensor

#79
20200284632
2020-09-10

Resistive flow sensor

#80
20200284631
2020-09-10

High flow tubular bypass

#81
20200278226
2020-09-03

Flow rate calculation system, flow rate calculation system program, flow rate calculation method, and flow rate calculation device

#82
20200268054
2020-08-27

ELECTRONIC CIGARETTE WITH MASS AIR FLOW SENSOR

#83
20200264023
2020-08-20

AIR FLOW RATE MEASURING DEVICE AND AIR FLOW RATE MEASURING SYSTEM

#84
20200200613
2020-06-25

PHYSICAL QUANTITY DETECTION DEVICE

#85
20200173826
2020-06-04

Measurement device for ascertaining a fluid variable relating to a fluid and/or a fluid flow

#86
20200109673
2020-04-09

Control device

#87
20200103264
2020-04-02

Process transmitter with thermal fluid detection for decreasing damage to the process transmitter components

#88
20200040834
2020-02-06

Air flow measurement device

#89
20200033201
2020-01-30

Physical quantity measurement device having a stepped portion to prevent particles from entering the measurement flow channel

#90
20200033173
2020-01-30

AIR FLOW RATE MEASURING DEVICE

#91
20200032494
2020-01-30

Thermal dispersion flow meter with fluid leak detection and freeze burst prevention

#92
20200011716
2020-01-09

Thermal gas property sensor

#93
20190391602
2019-12-26

METHODS AND APPARATUS FOR ENHANCED FLOW DETECTION REPEATABILITY OF THERMAL-BASED MASS FLOW CONTROLLERS (MFCS)

#94
20190391000
2019-12-26

Fluid sensing apparatus and method for detecting failure of fluid sensor

#95
20190390989
2019-12-26

Water metering system

#96
20190383654
2019-12-19

PHYSICAL QUANTITY DETECTION DEVICE

#97
20190353509
2019-11-21

Gas flow rate measurement device

#98
20190310212
2019-10-10

Thermal humidity measuring device

#99
20190265218
2019-08-29

Mass flow controller and method for controlling a mass flow rate of a gas in a gas stream

#100
20190219431
2019-07-18

Mass flowmeter using thermal dispersion technology

#101
20190178692
2019-06-13

Flow sensor with hot film anemometer

#102
20190170556
2019-06-06

Flow sensor

#103
20190137311
2019-05-09

Thermal flowmeter

#104
20190136492
2019-05-09

Non-invasive thermal dispersion flow meter with fluid leak detection and geo-fencing control

#105
20190120739
2019-04-25

Flow analysis method

#106
20190120674
2019-04-25

Thermal flow meter with housing surfaces that minimize vortex formation

#107
20190120151
2019-04-25

Fuel type prediction from mass flow measurements and thermal conductivity sensor

#108
20190094119
2019-03-28

PIPE RHEOMETER

#109
20190033110
2019-01-31

Thermal flowmeter and flow rate compensation method

#110
20190033107
2019-01-31

Water metering system

#111
20190025104
2019-01-24

THERMAL FLOWMETER AND FLOW RATE CORRECTION METHOD

#112
20180347759
2018-12-06

Digital regulated gas dispensing apparatus with a MEMS mass flow meter

#113
20180299308
2018-10-18

Composite MEMS flow sensor on silicon-on-insulator device and method of making the same

#114
20180274958
2018-09-27

Flow sensor with hot film anemometer

#115
20180252565
2018-09-06

Airflow meter

#116
20180246533
2018-08-30

Systems and methods for flow sensor back pressure adjustment for mass flow controller

#117
20180246531
2018-08-30

Systems and methods for flow sensor back pressure adjustment for mass flow controller

#118
20180224308
2018-08-09

Flow sensor heater circuit calibration

#119
20180188748
2018-07-05

Methods and apparatus for enhanced flow detection repeatability of thermal-based mass flow controllers (MFCS)

#120
20180188088
2018-07-05

Gas sensor device

#121
20180172719
2018-06-21

Electronic device for detecting an air flow

#122
20180172494
2018-06-21

Sensor unit for measuring a mass flow rate of a liquid hot-melt adhesive

#123
20180150088
2018-05-31

Flow path forming structure, flow rate measuring device and flow rate control device

#124
20180087954
2018-03-29

Method for detection and isolation of faulty sensors

#125
20180073911
2018-03-15

Method of inspecting gas supply system, method of calibrating flow controller, and method of calibrating secondary reference device

#126
20180073904
2018-03-15

ESTIMATION APPROACH FOR USE WITH A VIRTUAL FLOW METER

#127
20180067143
2018-03-08

Bolometer fluid flow sensor

#128
20180058889
2018-03-01

Nanowires integration for real-time compensation

#129
20180031403
2018-02-01

THERMAL, FLOW MEASURING DEVICE WITH DIAGNOSTIC FUNCTION

#130
20180023995
2018-01-25

Drop ejection based flow sensor calibration

#131
20180020728
2018-01-25

Electronic cigarette with mass air flow sensor

#132
20180017422
2018-01-18

Thermal flow meter

#133
20180017421
2018-01-18

Water metering system

#134
20170370752
2017-12-28

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

#135
20170356780
2017-12-14

Human machine interface for a remote terminal unit

#136
20170356776
2017-12-14

Gas flow meter

#137
20170345776
2017-11-30

Thermal flow meter

#138
20170343400
2017-11-30

Thermal-type airflow meter

#139
20170336232
2017-11-23

Thermal flow meter with an asymmetrical inflow-side of circuit package

#140
20170258993
2017-09-14

Force sensing resistor for liquid low-volume detection and occlusion sensing and methods and apparatuses for flow sensing along fluid path in fluid delivery device

#141
20170248455
2017-08-31

Physical-quantity detection device

#142
20170241820
2017-08-24

Thermal air flow meter

#143
20170234710
2017-08-17

Thermal air flow-rate sensor

#144
20170188486
2017-06-29

RACK AIRFLOW MONITORING SYSTEM AND METHOD

#145
20170184433
2017-06-29

Flow sensor

#146
20170176230
2017-06-22

Thermal flow meter with thin resin portion sealing temperature detection element

#147
20170176229
2017-06-22

Device and method for determining a mass flow of a fluid, and method for producing such a device

#148
20170122788
2017-05-04

Flow rate measurement device

#149
20170115148
2017-04-27

Thermal mass flow rate measurement method, thermal mass flow meter using said method, and thermal mass flow controller using said thermal mass flow meter

#150
20170059381
2017-03-02

Air flow rate measuring device with integrated sensor module

#151
20170052050
2017-02-23

Fluid inflow

#152
20170052049
2017-02-23

Fluid inflow

#153
20170045393
2017-02-16

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

#154
20160356231
2016-12-08

Flow measuring device

#155
20160327421
2016-11-10

Apparatus and method for determining flow of a medium

#156
20160313227
2016-10-27

Air-mass measuring apparatus, air-mass measuring system and air-mass measuring method for a vehicle

#157
20160282163
2016-09-29

Thermal type flowmeter

#158
20160282162
2016-09-29

Thermal flow meter

#159
20160273949
2016-09-22

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

#160
20160252378
2016-09-01

Mass Air Flow Measurement Device

#161
20160209255
2016-07-21

Thermal flow sensor

#162
20160202200
2016-07-14

Gas sensor device

#163
20160202099
2016-07-14

Air mass flow meter

#164
20160187175
2016-06-30

Electronic device, method for calculating in-housing airflow, and computer program product

#165
20160178421
2016-06-23

Thermal mass flowmeter

#166
20160161313
2016-06-09

Airflow meter

#167
20160131511
2016-05-12

Fluid analysis device

#168
20160097661
2016-04-07

Flow rate measurement device

#169
20160091355
2016-03-31

Flow measurement probe with pitot tube and thermal flow measurement

#170
20160025540
2016-01-28

Flow sensor circuit for monitoring a fluid flowpath

#171
20160011031
2016-01-14

Hot-type fluid measurement device with electronic elements

#172
20150377676
2015-12-31

Fluid measurement device having a circuit for precise flow measurement

#173
20150355006
2015-12-10

Thermal flow meter with an asymmetrical inflow-side of circuit package

#174
20150355005
2015-12-10

Air flow measuring device

#175
20150316401
2015-11-05

THERMAL, FLOW MEASURING APPARATUS AND METHOD FOR DETERMINING AND/OR MONITORING FLOW OF A MEDIUM

#176
20150308875
2015-10-29

Thermal flowmeter with energy storage element

#177
20150300858
2015-10-22

Thermal flow meter

#178
20150285666
2015-10-08

Air mass meter with a sensor element

#179
20150276503
2015-10-01

Temperature sensor and thermal, flow measuring device

#180
20150192445
2015-07-09

SOFTWARE AND METHODS FOR MASS FLOW METER COMPUTATION

#181
20150187708
2015-07-02

Thermal flow meter

#182
20150185061
2015-07-02

Flow sensor and control system of internal combustion engine

#183
20150177040
2015-06-25

Circuit arrangement for monitoring temperature and calorimetric mass flowmeter

#184
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

#185
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

#186
20150168192
2015-06-18

Thermal flow meter

#187
20150168191
2015-06-18

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

#188
20150160058
2015-06-11

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

#189
20150160054
2015-06-11

Thermal flow meter

#190
20150144543
2015-05-28

Flowmeter, dialysis machine and medicinal solution injection device

#191
20150135824
2015-05-21

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

#192
20150135823
2015-05-21

Thermal flow meter with thin resin portion sealing temperature detection element

#193
20150122010
2015-05-07

Thermal flow meter with lead having a bent portion

#194
20150096360
2015-04-09

Airflow measuring device

#195
20150075277
2015-03-19

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

#196
20150068299
2015-03-12

Gaseous flow sensor and related method thereof

#197
20150059467
2015-03-05

OSCILLATOR CIRCUIT

#198
20150006092
2015-01-01

Device and method for determining the mass-flow of a fluid

#199
20150000394
2015-01-01

Sensor system

#200
20140373612
2014-12-25

Method for operating an air mass sensor

#201
20140366614
2014-12-18

Sensor for detecting the mass flow rate and the temperature of a fluid flow

#202
20140360262
2014-12-11

Flow rate measuring device with first temperature sensor in a main passage and second temperature sensor in a sub-passage

#203
20140352423
2014-12-04

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

#204
20140348205
2014-11-27

Non-invasive thermal dispersion flow meter with chronometric monitor for fluid leak detection and freeze burst prevention

#205
20140348202
2014-11-27

Method for detecting presence of a droplet on a heated temperature sensor

#206
20140326064
2014-11-06

Thermal type flowmeter with particle guide member

#207
20140224004
2014-08-14

Thermal air flow meter

#208
20140190270
2014-07-10

Gas flow rate measuring apparatus for minimizing temperature dependent errors

#209
20140157866
2014-06-12

Measurement arrangement having electrically heated resistors arranged in gas paths

#210
20140076044
2014-03-20

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

#211
20130283904
2013-10-31

Method for operating a thermal, flow measuring device

#212
20130211767
2013-08-15

Offset compensation for flow sensing devices

#213
20130167630
2013-07-04

Flow measurement structure and flow measurement device

#214
20130167626
2013-07-04

Flow rate detection device

#215
20130160540
2013-06-27

Thermal flow rate sensor

#216
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

#217
20130074593
2013-03-28

Flow sensor, mass flow controller, and method for manufacturing flow sensor

#218
20130068014
2013-03-21

Thermal flow sensor having a power source for driving a bridge circuit and an integrated circuit

#219
20130060492
2013-03-07

Method of deducing time based metrics using flow rate

#220
20130060491
2013-03-07

Thermal Mass Flow Meter

#221
20130031959
2013-02-07

Air mass meter

#222
20130025364
2013-01-31

Appliance airflow detection using differential heating of electronic devices

#223
20130025363
2013-01-31

Thermal type flow rate sensor

#224
20120232809
2012-09-13

Intelligent gas flow sensor probe

#225
20120210781
2012-08-23

Sensor system for measuring a velocity of a fluid including a heating element a resonant circuit and a transducer

#226
20120111105
2012-05-10

Mass air flow sensor

#227
20120101745
2012-04-26

Flow measuring device

#228
20120036925
2012-02-16

Digital Flow Meter with Enhanced Turndown Ratio

#229
20110302995
2011-12-15

Wide range fluid leak detector and flow meter

#230
20110132398
2011-06-09

Method and apparatus for anti-fouling an anemometer

#231
20110118705
2011-05-19

Sensor and control unit for flow control and a method for controlled delivery of fluid

#232
20110035959
2011-02-17

Gas flow rate determination method and apparatus and granular material dryer and method for control thereof

#233
20110015791
2011-01-20

Thermal mass flow sensor with improved response across fluid types

#234
20100305465
2010-12-02

Multi-dynamic-range sensor

#235
20100275684
2010-11-04

Fluid flow monitoring

#236
20100223992
2010-09-09

Flowmeter

#237
20100223991
2010-09-09

Thermal flow meter measuring flow rate based on temperature difference measurement and driving energy of the heater

#238
20100170333
2010-07-08

Apparatus and method for determining a fluid flow state

#239
20100138052
2010-06-03

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

#240
20100089459
2010-04-15

Mass flow controller having a first pair of thermal sensing elements opposing a second pair of thermal sensing elements

#241
20100088044
2010-04-08

Gas measurement system

#242
20090299657
2009-12-03

Air flow measurement device and air flow correction method

#243
20090241660
2009-10-01

Thermal type flowmeter

#244
20090201969
2009-08-13

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

#245
20090099791
2009-04-16

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

#246
20090095067
2009-04-16

Airflow detection apparatus

#247
20090084177
2009-04-02

THERMAL FLOW MEASUREMENT SYSTEM AND METHOD

#248
20090078055
2009-03-26

Methods and apparatus for pressure compensation in a mass flow controller

#249
20090071244
2009-03-19

Fluid detector

#250
20090071243
2009-03-19

Fluid detector

#251
20090013777
2009-01-15

Thermal flow sensor having an amplifier section for adjusting the temperature of the heating element

#252
20090007658
2009-01-08

Thermal flow sensor having an amplifier section for adjusting the temperature of the heating element

#253
20090007657
2009-01-08

Thermal flow sensor having an amplifier section for adjusting the temperature of the heating element

#254
20090007656
2009-01-08

Thermal flow sensor having an amplifier section for adjusting the temperature of the heating element

#255
20090007655
2009-01-08

Thermal flow sensor having an amplifier section for adjusting the temperature of the heating element

#256
20080289411
2008-11-27

Thermal mass flow meter and method for its operation

#257
20080257026
2008-10-23

Method and apparatus for determining intake air mass

#258
20080229818
2008-09-25

Thermal flowmeter in which relationship among length of heat resistor, heating temperature for the heat resistor, and power supplied to the heat resistor is prescribed

#259
20080210002
2008-09-04

Flow sensor with non-contact temperature detecting means

#260
20080196487
2008-08-21

Intake air amount calculating system and method of internal combustion engine

#261
20080184769
2008-08-07

Low cost fluid flow sensor

#262
20080178669
2008-07-31

Thermal flow sensor having an amplifier section for adjusting the temperature of the heating element

#263
20080151964
2008-06-26

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