ClassID:

165087

G01F1/6847 - 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; Structural arrangements; Mounting of elements, e.g. in relation to fluid flow where sensing or heating elements are not disturbing the fluid flow, e.g. elements mounted outside the flow duct

Recent Application in this class:
#1
20260022955
2026-01-22

DEVICE AND METHOD FOR DETERMINING VOLUMETRIC FLOW RATE AND QUALITY

#2
20250297876
2025-09-25

FLUID FLOW VELOCITY MEASUREMENT VIA THERMAL CONDUCTION

#3
20250188717
2025-06-12

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

#4
20250172423
2025-05-29

SENSOR ASSEMBLY

#5
20250085147
2025-03-13

OUT OF PRODUCT SENSOR

#6
20250081293
2025-03-06

WEARABLE THERMAL SENSORS, SYSTEMS AND METHODS THEREOF

#7
20250012610
2025-01-09

PHYSICAL QUANTITY DETECTION DEVICE

#8
20240361164
2024-10-31

FLOW SENSING DEVICE AND METHOD

#9
20240255332
2024-08-01

COMPACT FLUID FLOW SENSOR

#10
20240192038
2024-06-13

FLUID FLOW VELOCITY MEASUREMENT VIA THERMAL CONDUCTION

#11
20240191480
2024-06-13

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

#12
20240183698
2024-06-06

Flow sensor system and method for using same

#13
20240151568
2024-05-09

Flow Sensor and Method Using Temperature to Improve Measurements for Low Rates

#14
20240141629
2024-05-02

NON-INVASIVE PLUMBING SENSOR SYSTEM

#15
20240060278
2024-02-22

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

#16
20240028055
2024-01-25

FLOW CONTROL SYSTEM, METHOD, AND APPARATUS

#17
20240027246
2024-01-25

THERMAL TYPE FLOWMETER AND MANUFACTURING METHOD OF THERMAL TYPE FLOWMETER

#18
20230384132
2023-11-30

SENSOR AND TECHNIQUES TO SYNCHRONIZE SEED PLACEMENT WITH APPLICATION OF LIQUID AGRICULTURAL PRODUCT

#19
20230358586
2023-11-09

Thermopile-based flow sensing device

#20
20230332937
2023-10-19

Flow sensor system and method for using same

#21
20230332936
2023-10-19

Thermal flow meter

#22
20230296417
2023-09-21

THERMAL-TYPE FLOW SENSOR WITH A THERMALLY CONDUCTIVE FRAME ELEMENT IN THE FORM OF A PRINTED CIRCUIT BOARD (PCB)

#23
20230160493
2023-05-25

Fluid control valve and fluid control apparatus

#24
20230051345
2023-02-16

DETERMINING THE FLOW RATE OF A FLOWING FLUID

#25
20220397437
2022-12-15

Physical quantity detection device

#26
20220381716
2022-12-01

Micromachined thermal time-of-flight fluidic concentration metering device

#27
20220244083
2022-08-04

SENSOR ASSEMBLY

#28
20220236091
2022-07-28

Thermal mass flowmeter

#29
20220221348
2022-07-14

Sap flow sensors

#30
20220163983
2022-05-26

Fluid control apparatus, fluid control method, and program recording medium in which program for fluid control apparatus is recorded

#31
20220155120
2022-05-19

Acoustic fluids monitoring

#32
20220142066
2022-05-12

Supply tube assembly for monitoring a directed stream measuring the liquid of an agricultural product application rate through a supply tube

#33
20220136882
2022-05-05

Flow sensing device

#34
20220099469
2022-03-31

Physical Quantity Detection Device

#35
20220098974
2022-03-31

System and method for downhole monitoring of fluid flow

#36
20220082422
2022-03-17

Monitoring and control system for a flow duct

#37
20220018697
2022-01-20

PHYSICAL QUANTITY MEASUREMENT DEVICE

#38
20220011145
2022-01-13

Flow rate sensor device

#39
20220004209
2022-01-06

Flow control system, method, and apparatus

#40
20210396563
2021-12-23

Physical quantity measurement device

#41
20210396562
2021-12-23

Flow sensing device

#42
20210310840
2021-10-07

THERMAL MASS FLUID FLOW SENSOR

#43
20210199482
2021-07-01

FLOWMETER

#44
20210199481
2021-07-01

Flow sensor apparatus for monitoring a directed stream of an agricultural product

#45
20210190562
2021-06-24

Non-invasive process fluid flow indication using temperature difference

#46
20210164820
2021-06-03

Flowmeter, and physical quantity measuring device

#47
20210164819
2021-06-03

Flowmeter

#48
20210116280
2021-04-22

Flow sensor

#49
20210004027
2021-01-07

Flow control system, method, and apparatus

#50
20210003431
2021-01-07

Estimating parameters of a fluid

#51
20200370938
2020-11-26

Thermopile-based flow sensing device

#52
20200363244
2020-11-19

Flow sensor based on electrical capacity

#53
20200309582
2020-10-01

Thin film thermal mass flow sensor in fluid applications

#54
20200284632
2020-09-10

Resistive flow sensor

#55
20200284631
2020-09-10

High flow tubular bypass

#56
20200278229
2020-09-03

Electronically deriving a conclusion of the condition of slurry flow in a non-vertical conduit

#57
20200271495
2020-08-27

Thermal flowmeter including a coupling element with an anisotropic thermal conductivity

#58
20200264022
2020-08-20

Method for forming micromachined liquid flow sensor

#59
20200200579
2020-06-25

FLOW RATE MEASUREMENT DEVICE, GAS METER PROVIDED WITH FLOW RATE MEASUREMENT DEVICE, AND FLOW RATE MEASUREMENT DEVICE UNIT FOR GAS METER

#60
20200173825
2020-06-04

Apparatus for measuring a fluid flow through a pipe of a semiconductor manufacturing device

#61
20200166394
2020-05-28

Thermal flowmeter

#62
20200158547
2020-05-21

Quantity measurement device with detection unit contacting housing

#63
20200096373
2020-03-26

Mass flow sensor, mass flow meter including the mass flow sensor, and mass flow controller including the mass flow sensor

#64
20200049540
2020-02-13

Monitoring and control system for a flow duct

#65
20200032494
2020-01-30

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

#66
20200003646
2020-01-02

Pipe sensors

#67
20200003598
2020-01-02

Thermal flowmeter and method for determining weighting factor

#68
20190391602
2019-12-26

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

#69
20190361468
2019-11-28

Multi-chamber rate-of-change system for gas flow verification

#70
20190331515
2019-10-31

Thermal mass flow sensor with improved accuracy

#71
20190310119
2019-10-10

Flow determination

#72
20190301905
2019-10-03

Device and system for fluid flow measurement

#73
20190285448
2019-09-19

Agricultural product application system and method thereof

#74
20190243393
2019-08-08

Flow control system, method, and apparatus

#75
20190242321
2019-08-08

Air flow rate measuring device

#76
20190204131
2019-07-04

Apparatus and Method for Non-Invasive Fluid/Gas Flow Sensing in a Pipe

#77
20190186969
2019-06-20

SENSING DEVICE AND METHOD FOR MANUFACTURING THE SAME

#78
20190178693
2019-06-13

Thermal mass flow sensor, method for manufacturing the thermal mass flow sensor, and thermal mass flow meter using the thermal mass flow sensor

#79
20190136492
2019-05-09

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

#80
20190086248
2019-03-21

Thermal type flowmeter using quadratic function of logarithm of flow rate

#81
20190064125
2019-02-28

Measurement of fluid flow

#82
20190049278
2019-02-14

THERMAL TYPE FLOWMETER

#83
20190041248
2019-02-07

THERMAL FLOWMETER

#84
20190035751
2019-01-31

Measuring device

#85
20190033110
2019-01-31

Thermal flowmeter and flow rate compensation method

#86
20190033108
2019-01-31

Thermal flowmeter

#87
20190011072
2019-01-10

Retractable fitting having a stopcock

#88
20180348030
2018-12-06

SENSOR WITH A GAS FLOW SENSING CHIP FOR MEASUREMENT OF FLOW RATE OF A GAS FLOWING THROUGH A GAS CONDUIT

#89
20180306621
2018-10-25

MEMBRANE-BASED THERMAL FLOW SENSOR DEVICE

#90
20180306618
2018-10-25

Adhesive flow meter

#91
20180275689
2018-09-27

Mass flow controller

#92
20180252565
2018-09-06

Airflow meter

#93
20180231409
2018-08-16

Electronically deriving a conclusion of the condition of slurry flow in a non-vertical conduit

#94
20180200432
2018-07-19

DEVICE FOR ADMINISTERING DRUG SOLUTION

#95
20180188748
2018-07-05

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

#96
20180187543
2018-07-05

DISTRIBUTED ELECTROMOTIVE FORCE SENSING

#97
20180172494
2018-06-21

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

#98
20180150088
2018-05-31

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

#99
20180106826
2018-04-19

Flow meter including increased measuring detection accuracy

#100
20180087944
2018-03-29

Sensor for determining at least one parameter of a fluid medium flowing through a measuring channel

#101
20180058891
2018-03-01

FLOW DETERMINATION

#102
20180038722
2018-02-08

Thermal flow-rate sensor

#103
20180004235
2018-01-04

Flow control system, method, and apparatus

#104
20170356774
2017-12-14

Thermal, flow measuring device

#105
20170342928
2017-11-30

Air flow rate measuring device

#106
20170307428
2017-10-26

Thermal, Flow Measuring Device

#107
20170293308
2017-10-12

Bypass unit, a base for a flow meter, a base for a flow controller, a flow meter, and a flow controller

#108
20170276527
2017-09-28

SYSTEM AND METHOD FOR METERING GAS

#109
20170153138
2017-06-01

Measuring apparatus and method of manufacturing the measuring apparatus

#110
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

#111
20170044876
2017-02-16

Production Surveillance and Optimization Employing Data Obtained from Surface Mounted Sensors

#112
20170038235
2017-02-09

MEMS flow sensor

#113
20170023388
2017-01-26

Thermal flow meter having a cover element that surrounds an insulated housing

#114
20160282162
2016-09-29

Thermal flow meter

#115
20160274595
2016-09-22

Flow rate range variable type flow rate control apparatus

#116
20160265955
2016-09-15

Methods and apparatus for determination of flow through a fluid conduit based on a measured convergence of fluid conduit temperature and ambient temperature

#117
20160265953
2016-09-15

In-line measuring device

#118
20160252379
2016-09-01

Flow sensor with a protruding portion for height control and a cover for suppressing sinking of the cover during welding

#119
20160245683
2016-08-25

Thermal flow meter having seal areas with deformed ferrules

#120
20160245682
2016-08-25

Thermal flow meter with reinforcing plate and method of manufacturing the same

#121
20160239026
2016-08-18

Flow meter and flow control device provided therewith

#122
20160231155
2016-08-11

Mass flow meter including organic-material covering layers

#123
20160187175
2016-06-30

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

#124
20160187173
2016-06-30

Oil level detecting apparatus and control method thereof, oil flow detecting apparatus and control method thereof, method for control oil return using oil level and oil flow

#125
20160178420
2016-06-23

Thermal mass flow meter and mass flow controller

#126
20160161311
2016-06-09

Capillary sensor tube flow meters and controllers

#127
20160138952
2016-05-19

Device for determining temperature as well as measuring arrangement for determining flow

#128
20160109886
2016-04-21

Flow rate range variable type flow rate control apparatus

#129
20150308872
2015-10-29

Air flow sensor including a resin-molded protection member for a temperature sensor

#130
20150268264
2015-09-24

Thermistor based measurement system

#131
20150234393
2015-08-20

System and method for improving the accuracy of a rate of decay measurement for real time correction in a mass flow controller or mass flow meter by using a thermal model to minimize thermally induced error in the rod measurement

#132
20150153209
2015-06-04

Thermal flow sensors having isolated membranes

#133
20150121988
2015-05-07

System and method for using a rate of decay measurement for real time measurement and correction of zero offset and zero drift of a mass flow controller or mass flow meter

#134
20150006092
2015-01-01

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

#135
20140348205
2014-11-27

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

#136
20140257720
2014-09-11

System and method for improved indicated flow in mass flow controllers

#137
20140216152
2014-08-07

Characterizing multiphase fluid flow

#138
20140155867
2014-06-05

Intravenous infusion monitoring apparatus, system and method

#139
20140116128
2014-05-01

Method and apparatus for measuring the flow rate of a liquid

#140
20140005589
2014-01-02

Cerebrospinal fluid evaluation system having thermal flow and flow rate measurement pad using a plurality of control sensors

#141
20130319105
2013-12-05

Micro flow sensor

#142
20130276549
2013-10-24

Method and apparatus for the measurement of flow in gas or oil pipes

#143
20130220451
2013-08-29

Flow rate range variable type flow rate control apparatus

#144
20130153040
2013-06-20

Flow rate control using mass flow rate control device

#145
20130098150
2013-04-25

Flow-meter probe

#146
20130074593
2013-03-28

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

#147
20120291540
2012-11-22

Infusion Apparatus With Flow Detector

#148
20120279316
2012-11-08

Method and apparatus for the measurement of flow in gas or oil pipes

#149
20120191381
2012-07-26

Flow rate sensor

#150
20120080104
2012-04-05

Diagnostic mechanism

#151
20120036925
2012-02-16

Digital Flow Meter with Enhanced Turndown Ratio

#152
20110191038
2011-08-04

MASS FLOW CONTROLLER WITH IMPROVED DYNAMIC RESPONSE

#153
20110132083
2011-06-09

Low Temperature Gas Flow Sensor

#154
20110125445
2011-05-26

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

#155
20110118705
2011-05-19

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

#156
20110100114
2011-05-05

Thermal loop flow sensor

#157
20110061841
2011-03-17

Temperature insensitive mass flow controller

#158
20100326539
2010-12-30

Thermal flow sensor with zero drift compensation

#159
20100319450
2010-12-23

Method and apparatus to define the velocity of a flowing fluid

#160
20100229965
2010-09-16

Mass flow meter, mass flow controller, mass flow meter system and mass flow control system containing the mass flow meter and the mass flow controller

#161
20100163119
2010-07-01

Mass flow meter and mass flow controller

#162
20100162810
2010-07-01

Thermal mass flow meter including heating element and temperature sensors formed on separate chips and secured to the outer periphery of the pipe

#163
20100139775
2010-06-10

Flow rate range variable type flow rate control apparatus

#164
20100089459
2010-04-15

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

#165
20100049461
2010-02-25

Mass flow controller with improved dynamic

#166
20100037688
2010-02-18

Flowmeter for measuring a flow rate using a heat exchange principle

#167
20100000608
2010-01-07

Flow rate control using mass flow rate control device

#168
20090308177
2009-12-17

Flowmeter

#169
20090235735
2009-09-24

Apparatus and method for measuring a fluid flow-rate within a capillary

#170
20090199633
2009-08-13

Flow sensor and mass flow controller using the same

#171
20090164050
2009-06-25

Diagnostics for mass flow control

#172
20090025473
2009-01-29

Flow Rate Detection Method and Flow Rate Detection Apparatus Using a Heat Signal

#173
20080211510
2008-09-04

Method and apparatus for measuring the temperature of a gas in a mass flow controller

#174
20080210002
2008-09-04

Flow sensor with non-contact temperature detecting means

#175
20080196494
2008-08-21

Flow sensor

#176
20080167579
2008-07-10

Apparatus For Determining the Amount of Milk Breast-Fed to a Baby by Convective Heat Transfer

#177
20080148841
2008-06-26

Thermal mass flowmeter

#178
20080092644
2008-04-24

Thermal mass flow meter having a heater and paired temperature sensor chips separately formed and mounted on the flow pipe

#179
20080047339
2008-02-28

Electronic components packaging structure

#180
20080016957
2008-01-24

Mass flow meter

#181
20080013291
2008-01-17

THERMAL FLOW SENSOR HAVING STREAMLINED PACKAGING

#182
20080010821
2008-01-17

Method of making a plurality of flow sensors

#183
20080000283
2008-01-03

Flow sensor signal conversion

#184
20070295079
2007-12-27

Flow sensor of the thermal type

#185
20070251292
2007-11-01

Flip-chip flow sensor

#186
20070233412
2007-10-04

Mass flow rate control apparatus, its calibration method and semiconductor-producing apparatus

#187
20070219650
2007-09-20

Mass flow meter or controller with inclination sensor

#188
20070198131
2007-08-23

Mass flow rate-controlling apparatus

#189
20070181147
2007-08-09

Processing-fluid flow measuring method

#190
20070113641
2007-05-24

Vertical mount mass flow sensor

#191
20070044554
2007-03-01

Method of thermally coupling a flow tube or like component to a thermal sensor and sensor systems formed thereby

#192
20070017286
2007-01-25

Tube and die interface for liquid flow sensing through the tube

#193
20060278276
2006-12-14

Flow controller and its regulation method

#194
20060234414
2006-10-19

Calorimetric flow meter

#195
20060123892
2006-06-15

Method and device for determining a characteristic value that is representative of the condition of a gas

#196
20060101908
2006-05-18

Thermal mass flow rate sensor including bypass passageways and a sensor passageway having similar entrance effects

#197
20060101907
2006-05-18

Thermal mass flow rate sensor having fixed bypass ratio

#198
20060081044
2006-04-20

Alignment device for positioning liquid flow tube

#199
20060059985
2006-03-23

Fluid detection device

#200
20060005620
2006-01-12

Flow rate measuring method and flowmeter, flow rate measuring section package used for them and flow rate measuring unit using them, and piping leakage inspection device using flowmeter

#201
20060000271
2006-01-05

Thermal flow sensor having streamlined packaging

#202
20050268712
2005-12-08

Disposable fluid flow sensor

#203
20050241388
2005-11-03

Flow meter

#204
20050222782
2005-10-06

Flow monitoring system

#205
20050160833
2005-07-28

System and method of measuring convection induced impedance gradients to determine liquid flow rates

#206
20050155421
2005-07-21

Flow rate measuring method and flowmeter, flow rate measuring section package used for them and flow rate measuring unit using them, and piping leakage inspection device using flowmeter

#207
20050126306
2005-06-16

Flow sensor signal conversion

#208
20050092077
2005-05-05

Variable resistance sensor with common reference leg

#209
20050087011
2005-04-28

Mass flow meter with symmetrical sensors

#210
20050022594
2005-02-03

Flow sensor with self-aligned flow channel

#211
19233702
2026-05-12

Clamp-on thermal meter for non-intrusive flow measurement in a conduit

#212
16708788
2022-04-05

Thermal flow sensor for beverage metering

#213
16389647
2020-09-15

Thermophile-based flow sensing device

#214
16365967
2022-04-05

Blood flow measurement apparatus and method

#215
15822181
2019-07-16

Flow sensor based on electrical capacity

#216
15482597
2018-08-07

Fluid flow rate assessment by a non-intrusive sensor in a fluid transfer pump system