ClassID:

165111

G01F1/712 - 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 using marked regions or existing inhomogeneities within the fluid stream, e.g. statistically occurring variations in a fluid parameter; Measuring the time taken to traverse a fixed distance using auto-correlation or cross-correlation detection means

Recent Application in this class:
#1
20260110562
2026-04-23

CAPACITIVE ELECTRICAL CONDUCTIVITY SENSOR INTEGRATED IN A WATER METER

#2
20250198819
2025-06-19

METHOD AND DEVICE FOR MEASURING A FLOW VELOCITY OF A GAS STREAM

#3
20250172473
2025-05-29

SCANNING OCT OFF-WALL PARTICLE SIZING

#4
20250109976
2025-04-03

GAS VOLUME DETERMINATION IN FLUID

#5
20250102338
2025-03-27

FLUID CONDUCTIVITY SENSOR BASED ON MAGNETO-INDUCTIVE POWER TRANSFER DISSIPATION

#6
20240255333
2024-08-01

Method and device for measuring a flow velocity of a gas stream

#7
20240247584
2024-07-25

DOWNHOLE FLOWMETER

#8
20240167860
2024-05-23

CAPACITIVE ELECTRICAL CONDUCTIVITY SENSOR INTEGRATED IN A WATER METER

#9
20230400336
2023-12-14

Gas volume determination in fluid

#10
20230384132
2023-11-30

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

#11
20230366711
2023-11-16

Measurement of System for Streamflow Determination in Real Time

#12
20230258072
2023-08-17

Downhole flowmeter

#13
20230221155
2023-07-13

METHOD AND MEASURING DEVICE FOR DETERMINING A MEASURED QUANTITY RELATING TO A FLOW

#14
20220163361
2022-05-26

THz measuring method and THz measuring device for detecting a material flow

#15
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

#16
20220034696
2022-02-03

Method and device for measuring a flow velocity of a gas stream

#17
20210356304
2021-11-18

Flow rate measurement apparatus measuring flow rate of fluid inside pipe having predetermined cross-sectional area

#18
20210325220
2021-10-21

Device for measuring mass flow rate of multiphase flow based on ray coincidence measurement

#19
20210293595
2021-09-23

Systems and methods for calibrating and correcting a speckle contrast flowmeter

#20
20210293103
2021-09-23

Flow meter measurement for drilling rig

#21
20210270647
2021-09-02

Apparatus for measuring multiphase fluid flows and related methods

#22
20210199481
2021-07-01

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

#23
20210172909
2021-06-10

Method and apparatus for determining GVF—gas volume fraction—for aerated fluids and liquids in flotation tanks, columns, drums, tubes, vats

#24
20210164341
2021-06-03

Downhole flowmeter

#25
20210074440
2021-03-11

Detection apparatus, system, and method for detection of coolant flow rate and temperature in a nuclear environment

#26
20200378811
2020-12-03

Gas volume determination in fluid

#27
20200363244
2020-11-19

Flow sensor based on electrical capacity

#28
20200278228
2020-09-03

SIGNAL PROCESSING CIRCUIT AND RELATED CHIP, FLOW METER AND METHOD

#29
20200271498
2020-08-27

Estimates of flow velocity with controlled spatio-temporal variations in contrast media properties

#30
20200182672
2020-06-11

Optical flow sensor, methods, remote controller device, and rotatable electronic device

#31
20190360849
2019-11-28

Ultrasonic transducer system and method using selective interleaved excitation pulse frequency

#32
20190285448
2019-09-19

Agricultural product application system and method thereof

#33
20190277680
2019-09-12

Dielectric multiphase flow meter

#34
20190242203
2019-08-08

In-line methods and apparatuses for determining the composition of an emulsified drilling fluid

#35
20190154482
2019-05-23

Estimating flow velocity by harmonic excitation of injected microbubbles

#36
20190086316
2019-03-21

System for blood flow measurement with affixed laser speckle contrast analysis

#37
20180348032
2018-12-06

Optical flow sensor, methods, remote controller device, and rotatable electronic device

#38
20180321068
2018-11-08

System and method for real-time flow measurement in pipelines using THz imaging

#39
20180299478
2018-10-18

Method and system for determining the velocity of a moving fluid surface

#40
20180292245
2018-10-11

Method for controlling an apparatus for ultrasonically measuring the flow rate of a fluid in a measuring channel

#41
20180202246
2018-07-19

In-line methods and apparatuses for determining the composition of an emulsified drilling fluid

#42
20180172495
2018-06-21

Multiphase vortex flow meter

#43
20170350915
2017-12-07

Measurement of the flow velocity and the flow direction of gases and liquids

#44
20170248570
2017-08-31

Measuring rod for verification of a flowing medium in a tube and respective measuring arrangements

#45
20170241818
2017-08-24

Ultrasonic flowmeter and method of controlling an ultrasonic flowmeter by simultaneously driving a pair of transducers without correlation

#46
20170089854
2017-03-30

Downhole tool for determining electrical resistance of a fluid in a wellbore

#47
20160334436
2016-11-17

On-line fluid sensor

#48
20160216196
2016-07-28

Scale monitoring and inhibitor quantification technique in multiphase meters

#49
20160169838
2016-06-16

Systems and methods for improved physiological monitoring

#50
20160138950
2016-05-19

Method for converting a measurement of local velocity of a fluid in a channel or a duct into a mean velocity

#51
20160080093
2016-03-17

Ultrasonic transducer system and method using selective interleaved excitation pulse frequency

#52
20150253164
2015-09-10

Tomographic and sonar-based processing using electrical probing of a flowing fluid to determine flow rate

#53
20150168199
2015-06-18

Computer based fluid flow velocity estimation from concentrations of a reacting constituent for products and services

#54
20150132723
2015-05-14

Method for determining and prescribing quantifiable and customized diet for patient suffering from dysphagia

#55
20150116696
2015-04-30

Method and system for determining a velocity of a relative movement between an object and a fluidal medium

#56
20150059491
2015-03-05

Device for determining a mass flow rate of a fluid in a channel by measuring electrical conductivity using electrodes

#57
20140334710
2014-11-13

Particle image velocimetry suitable for X-ray projection imaging

#58
20140290380
2014-10-02

Flow rate measuring device

#59
20140272984
2014-09-18

Microfluidic flow monitoring

#60
20140260669
2014-09-18

Systems and methods for hybrid flow sensing

#61
20140260659
2014-09-18

Multiphase flow measurement using electromagnetic sensors

#62
20140130723
2014-05-15

Device and method for controlling the fuel-air ratio in the combustion of ground coal in a firing system of a coal-fired power station

#63
20140109684
2014-04-24

Integrated acoustic phase separator and multiphase fluid composition monitoring apparatus and method

#64
20130224886
2013-08-29

Flow rate measurement apparatus, antigen concentration measurement apparatus, flow cell, flow rate measurement method, and antigen concentration measurement method

#65
20130199305
2013-08-08

Single wrapped sensor flow meter

#66
20130199273
2013-08-08

Monitoring fluid flow in a conduit

#67
20130151188
2013-06-13

Method and system for non-invasively monitoring fluid flow in a subject

#68
20130116940
2013-05-09

Flow sensor assemblies

#69
20130036817
2013-02-14

Electromagnetic flow meter and method for monitoring fluid flow of a conducting fluid having either a uniform or a non-uniform flow profile

#70
20120237104
2012-09-20

Particle image velocimetry suitable for X-ray projection imaging

#71
20120203113
2012-08-09

BLOOD FLOW SENSOR

#72
20120055262
2012-03-08

Integrated acoustic phase separator and multiphase fluid composition monitoring apparatus and method

#73
20110303019
2011-12-15

Minimally intrusive monitoring of a multiphase process flow using a tracer and a spatially arranged array of at least two sensors on a flow pipe

#74
20110259120
2011-10-27

Multiphase flowmeter for measuring physical properties of individual phases in a multiphase flow

#75
20110216306
2011-09-08

METHOD FOR DETERMINING THE FLOW OF A FLUID CLOSE TO A SURFACE OF AN OBJECT IMMERSED IN THE FLUID

#76
20110213572
2011-09-01

Flowmeter array processing algorithm with wide dynamic range

#77
20110203386
2011-08-25

Optical multiphase flowmeter

#78
20110197831
2011-08-18

Pulverized Coal Burning Boiler

#79
20110196625
2011-08-11

Multiphase flow metering with patch antenna

#80
20110166800
2011-07-07

Flow sensor assemblies

#81
20110160893
2011-06-30

Applications of sonar-based VF/GVF metering to industrial processing

#82
20110106397
2011-05-05

FLUID MEASURING DEVICE

#83
20110100271
2011-05-05

Device and method for controlling the fuel-air ratio during the combustion of ground coal in the firing system of a coal power plant

#84
20110029261
2011-02-03

FLUID MEASUREMENT DEVICE AND FLUID MEASUREMENT METHOD

#85
20100285612
2010-11-11

FLOW RATE MEASUREMENT APPARATUS, ANTIGEN CONCENTRATION MEASUREMENT APPARATUS, FLOW CELL, FLOW RATE MEASUREMENT METHOD, AND ANTIGEN CONCENTRATION MEASURING METHOD

#86
20100251829
2010-10-07

APPARATUS AND METHOD FOR MEASURING A FLUID FLOW PARAMETER WITHIN AN INTERNAL PASSAGE OF AN ELONGATED BODY

#87
20100209893
2010-08-19

Method and apparatus for prescribing and preparing a reproducible and customized dysphagia diet

#88
20100192703
2010-08-05

Flow measuring apparatus using tube waves and corresponding method

#89
20100170333
2010-07-08

Apparatus and method for determining a fluid flow state

#90
20100162827
2010-07-01

Sealed electrode assembly for fluid measurements

#91
20100145636
2010-06-10

Flow measurements

#92
20100138170
2010-06-03

Method and apparatus for measuring a parameter of a fluid flowing within a pipe

#93
20100107775
2010-05-06

Capacitive sensor, system, and method for measuring parameters of a two-phase flow

#94
20100094569
2010-04-15

Viscous fluid flow measurement using a differential pressure measurement and a SONAR measured velocity

#95
20100000331
2010-01-07

Apparatus for attenuating ultrasonic waves propagating within a pipe wall

#96
20100000330
2010-01-07

Method and system for non-invasively monitoring fluid flow in a subject

#97
20090319204
2009-12-24

Method and apparatus for volumetric gas in-line sensing

#98
20090126502
2009-05-21

Method and apparatus for tomographic multiphase flow measurements

#99
20090088985
2009-04-02

Method and apparatus for measuring the conductivity of the water fraction of a wet gas

#100
20090013799
2009-01-15

Apparatus and method for augmenting a coriolis meter

#101
20090006008
2009-01-01

Apparatus and method for measuring liquid and gas flow rates in a stratified multi-phase flow

#102
20080319685
2008-12-25

Systems and methods for measuring multiphase flow in a hydrocarbon transporting pipeline

#103
20080282808
2008-11-20

Measuring Means for Measuring a Flow Rate of a Medium Independently of the Medium

#104
20080276723
2008-11-13

Apparatus and method for providing a stratification metric of a multiphase fluid flowing within a pipe

#105
20080236298
2008-10-02

Wet gas metering using a differential pressure and a sonar based flow meter

#106
20080231860
2008-09-25

Optical device and method for sensing multiphase flow

#107
20080208483
2008-08-28

Sonar-based flow meter operable to provide product identification

#108
20080208056
2008-08-28

Method for measuring the run time of an ultrasonic pulse in the determination of the flow velocity of a gas in a breathing gas volume flow sensor

#109
20080189057
2008-08-07

Flowmeter array processing algorithm with wide dynamic range

#110
20080173100
2008-07-24

Apparatus and method for measuring a fluid flow parameter within an internal passage of an elongated body

#111
20080163692
2008-07-10

System and method for using one or more thermal sensor probes for flow analysis, flow assurance and pipe condition monitoring of a pipeline for flowing hydrocarbons

#112
20080133182
2008-06-05

Method and apparatus for measuring parameters of a stratified flow

#113
20080098818
2008-05-01

Apparatus and method for attenuating acoustic waves in pipe walls for clamp-on ultrasonic flow meter

#114
20080041167
2008-02-21

Flow meter for measuring flow velocity or volumetric flow rate based on pressure gradient

#115
20080001766
2008-01-03

On-line fluid sensor

#116
20080000307
2008-01-03

Flow rate measurement for industrial sensing applications using unsteady pressures

#117
20070278408
2007-12-06

Optical multiphase flowmeter

#118
20070224692
2007-09-27

Method and apparatus for detecting water in a fluid media

#119
20070206179
2007-09-06

Method and apparatus for fluid velocity measurement based on photobleaching

#120
20070186679
2007-08-16

Method and device for determining parameters of fluctuating flow

#121
20070185662
2007-08-09

Correlation method for measurements of total and fractional immiscible media flow rates and a device for its embodiment

#122
20070166011
2007-07-19

EIT data processing system and method

#123
20070118304
2007-05-24

Method and apparatus for determining a quality metric of a measurement of a fluid parameter

#124
20070067116
2007-03-22

Method for calibrating a volumetric flow meter having an array of sensors

#125
20070061093
2007-03-15

Time-of-flight stochastic correlation measurements

#126
20070034017
2007-02-15

Portable flow measurement apparatus having an array of sensors

#127
20070027638
2007-02-01

Apparatus having an array of piezoelectric film sensors for measuring parameters of a process flow within a pipe

#128
20070022826
2007-02-01

Flow meter and method of using the same

#129
20070022824
2007-02-01

Method and apparatus for measuring a parameter of a fluid flowing within a pipe having a sensing device with multiple sensor segments

#130
20070006744
2007-01-11

Wet gas metering using a differential pressure based flow meter with a sonar based flow meter

#131
20070006727
2007-01-11

System and method for optimizing a gas/liquid separation process

#132
20070006640
2007-01-11

Multi-phase flow measurement system having a fluid separator

#133
20070001028
2007-01-04

Apparatus and method for measuring a parameter of a multiphase flow

#134
20060266127
2006-11-30

Apparatus and method for fiscal measuring of an aerated fluid

#135
20060260384
2006-11-23

Apparatus and method for measuring parameters of a mixture having liquid droplets suspended in a vapor flowing in a pipe

#136
20060212231
2006-09-21

Apparatus and method of processing data to improve the performance of a flow monitoring system

#137
20060201430
2006-09-14

Industrial flow meter having an accessible digital interface

#138
20060169058
2006-08-03

Apparatus and method for augmenting a Coriolis meter

#139
20060081066
2006-04-20

Correlation method for measurements of total and fractional immiscible media flow rates and a device for its embodiment

#140
20060049369
2006-03-09

Depth-of-field micron resolution velocimetry with pulsed images of injected solid particles

#141
20050246111
2005-11-03

Method and apparatus for measuring parameters of a stratified flow

#142
20050241411
2005-11-03

Ultrasonic flowmeter and ultrasonic flowmetering method

#143
20050171710
2005-08-04

Apparatus and method for measuring parameters of a mixture having solid particles suspended in a fluid flowing in a pipe

#144
20050159904
2005-07-21

Method and apparatus for determining a quality metric of a measurement of a fluid parameter

#145
20050109112
2005-05-26

Sand monitoring within wells using acoustic arrays

#146
20050072216
2005-04-07

Piezocable based sensor for measuring unsteady pressures inside a pipe

#147
20050050956
2005-03-10

Contact-based transducers for characterizing unsteady pressures in pipes

#148
20050044966
2005-03-03

Method and apparatus for measuring a parameter of a high temperature fluid flowing within a pipe using an array of piezoelectric based flow sensors

#149
20050039520
2005-02-24

Method and apparatus for measuring parameters of a fluid flowing within a pipe using a configurable array of sensors

#150
20050034518
2005-02-17

Method and device for determining the volumetric flow rate of milk flowing during a milking process

#151
20050005713
2005-01-13

Portable flow measurement apparatus having an array of sensors

#152
20050005712
2005-01-13

Apparatus for measuring velocity and flow rate of a fluid having a non-negligible axial mach number using an array of sensors