ClassID:

165109

G01F1/7086 - 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 optical detecting arrangements

Recent Application in this class:
#1
20250362162
2025-11-27

DEVICE FOR MONITORING FOAM VOLUME, FLOW PATTERN, AND PRESSURE DROP IN FOAM DRAINAGE GAS RECOVERY

#2
20250347545
2025-11-13

Measuring System

#3
20250341162
2025-11-06

TARGETED TRACER INJECTION WITH ONLINE SENSOR

#4
20250198819
2025-06-19

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

#5
20250130085
2025-04-24

BUBBLE THERMOGRAPHY VELOCIMETRY FOR LARGE SCALE FLOW FIELD MEASUREMENT

#6
20240353247
2024-10-24

FLOW RATE MEASUREMENT UNIT, FLOW RATE MEASUREMENT SYSTEM, AND FLOW RATE MEASUREMENT METHOD

#7
20240255333
2024-08-01

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

#8
20240229643
2024-07-11

SYSTEM FOR MEASURING MULTIPHASE FLOW IN DOWNHOLE CONDITIONS AND FLOW REGIMES

#9
20240125636
2024-04-18

LASER DOPPLER VELOCIMETRY-BASED FLOW SENSOR FOR DOWNHOLE MEASUREMENTS IN OIL PIPES

#10
20240102841
2024-03-28

MIST FLOW RATE MEASURING APPARATUS, ULTRASONIC ATOMIZATION SYSTEM, AND MIST FLOW RATE MEASURING METHOD

#11
20240085230
2024-03-14

MIST FLOW RATE MEASURING APPARATUS

#12
20240044683
2024-02-08

FLOW IMAGING AND MONITORING FOR SYNCHRONIZED MANAGEMENT OF WIDE AREA DRAINAGE

#13
20230341359
2023-10-26

METHOD FOR DETERMINING PIPELINE VOLUME, LIQUID CHROMATOGRAPHY SYSTEM, AND PIPELINE VOLUME DETERMINATION DEVICE

#14
20230288239
2023-09-14

Measurement Of Fluid Flow Velocity With High Spatial And Temporal Resolution

#15
20230251119
2023-08-10

METHOD AND DEVICE FOR MEASURING A FLUX OF A HEAVY OIL-MISCIBLE PHASE FLUID

#16
20230213369
2023-07-06

MASS FLOW METERS/CONTROLLERS AND METHODS HAVING IMPROVED ACCURACY

#17
20230083320
2023-03-16

Systems and methods for remote sensing of river velocity using video and an optical flow algorithm

#18
20230041777
2023-02-09

Gas meter and associated methods

#19
20230018969
2023-01-19

Optical bubble sensor

#20
20220404254
2022-12-22

Assessing a flow of a sprayed coating

#21
20220396918
2022-12-15

Automatic monitoring of smelt flow exiting a recovery boiler

#22
20220389811
2022-12-08

TARGETED TRACER INJECTION WITH ONLINE SENSOR

#23
20220349738
2022-11-03

Imaging system for analyzing a multiphase flow by measuring individual flow rates and measuring deposit thickness on an internal wall of a pipe

#24
20220268612
2022-08-25

FLUID ANALYSIS APPARATUS, FLUID ANALYSIS METHOD, AND FLUID ANALYSIS PROGRAM

#25
20220232754
2022-07-28

CAMERA BASED FLOW DETECTION

#26
20220214199
2022-07-07

NANO FLOW SENSORS

#27
20220163361
2022-05-26

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

#28
20220163358
2022-05-26

Angular circuit board assembly for a flowmeter

#29
20220063617
2022-03-03

AUTOMATED TRACTOR SPEED ADJUSTMENT FOR AVOIDANCE OF PLUGGING A BALER

#30
20220062899
2022-03-03

Method, Apparatus and System to Detect Sub-Particle Flowrate in a Closed System

#31
20220034696
2022-02-03

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

#32
20220026253
2022-01-27

Evaluation of flow properties in physical media

#33
20220003585
2022-01-06

Optical fluid detection sensor for detecting flow of immiscible slug flow in a fluid detection device

#34
20210396564
2021-12-23

Coriolis effect-based mass flow meters/controllers using optical sensing and methods having improved accuracy

#35
20210362149
2021-11-25

Liquid quantifying device and application thereof

#36
20210293595
2021-09-23

Systems and methods for calibrating and correcting a speckle contrast flowmeter

#37
20210293591
2021-09-23

Flow imaging and monitoring for synchronized management of wide area drainage

#38
20210262845
2021-08-26

Flow rate estimation of a fluent solid material in a generally horizontal pipe

#39
20210148008
2021-05-20

Saw gin stand seed roll monitoring feature

#40
20210090270
2021-03-25

Method and system for detecting flow velocity of high-temperature molten fluid

#41
20210072274
2021-03-11

Microfluidic flow sensor

#42
20210069708
2021-03-11

MICROFLUIDIC FLOW SENSOR

#43
20210033439
2021-02-04

Flow imaging and monitoring for synchronized management of wide area drainage

#44
20210018529
2021-01-21

Method and system for collecting air data using a laser-induced plasma channel

#45
20210000352
2021-01-07

FLUORESCENCE BASED FLOW IMAGING AND MEASUREMENTS

#46
20200378814
2020-12-03

Gas meter and associated methods

#47
20200292365
2020-09-17

FLOWMETER PROFILING SYSTEM FOR USE IN GROUNDWATER PRODUCTION WELLS AND BOREHOLES

#48
20200286231
2020-09-10

Methods for determining test result validity using a wavefront position on a test strip

#49
20200182672
2020-06-11

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

#50
20200182671
2020-06-11

Flow measurement method and a flow measurement device for optical flow measurement

#51
20200166399
2020-05-28

Airflow calibrator

#52
20200158548
2020-05-21

Systems and methods for calibrating and correcting a speckle contrast flowmeter

#53
20200132528
2020-04-30

Measurement of fluid flow velocity with high spatial and temporal resolution

#54
20200064169
2020-02-27

Flow velocity distribution measuring method and particle size measuring method

#55
20200032641
2020-01-30

Targeted tracer injection with online sensor

#56
20190390988
2019-12-26

Method and system for measuring steam mass flow

#57
20190324051
2019-10-24

System and method for deriving airspeed from a particle sensor

#58
20190226834
2019-07-25

LASER IMAGING

#59
20190086316
2019-03-21

System for blood flow measurement with affixed laser speckle contrast analysis

#60
20190056421
2019-02-21

Method and system for analyzing velocity distribution of water flow in a water body

#61
20180348032
2018-12-06

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

#62
20180335328
2018-11-22

Methods for designing a flow conduit and apparatus that measures deflection at multiple points to determine flow rate

#63
20180321068
2018-11-08

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

#64
20180299478
2018-10-18

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

#65
20180238726
2018-08-23

Flow imaging and monitoring for synchronized management of wide area drainage

#66
20180216979
2018-08-02

Monitoring of fluid flow in an open channel using an optical fibre sensor

#67
20180164137
2018-06-14

Gas meter and associated methods

#68
20180149017
2018-05-31

Acoustic illumination for flow-monitoring

#69
20180125378
2018-05-10

Fluorescence based flow imaging and measurements

#70
20180122265
2018-05-03

Method for objectively reproducing a dysphagia diet

#71
20180069992
2018-03-08

FLOW-DOWN DETERMINATION METHOD, FLOW-DOWN DETERMINATION APPARATUS AND DISCHARGE APPARATUS

#72
20180038179
2018-02-08

Mud flow monitoring devices and methods

#73
20170307649
2017-10-26

Apparatus for measuring fluid speed by using the refraction of light emitted from two light sources

#74
20170299415
2017-10-19

Immersion-type online multiphase measuring instrument and method

#75
20170254687
2017-09-07

Flowmeter profiling system for use in groundwater production wells and boreholes

#76
20170136436
2017-05-18

Controlling local fluid age in a stirred reactor

#77
20170082470
2017-03-23

Flow imaging and monitoring for synchronized management of wide area drainage

#78
20170028426
2017-02-02

Flow-down determination method, flow-down determination apparatus and discharge apparatus

#79
20160356918
2016-12-08

Heat source-free fiber positioning and orienting system for seepage of submerged or partially-submerged structures and monitoring method thereof

#80
20160339433
2016-11-24

Microfluidic Flow Monitoring

#81
20160265345
2016-09-15

Method and system for monitoring fluid flow in a conduit

#82
20160252636
2016-09-01

System for monitoring a surface for gas and oil flow

#83
20160131627
2016-05-12

Reaction carrier, measuring system and measuring method for determining gas and particle concentrations, and optical flow sensor

#84
20160061792
2016-03-03

Measuring device, reaction carrier and measuring method

#85
20160025535
2016-01-28

Microfluidic flow rate sensor

#86
20150354345
2015-12-10

Methods and Systems for Analyzing Flow

#87
20150285064
2015-10-08

Acoustic illumination for flow-monitoring

#88
20150276448
2015-10-01

In-line flow meter

#89
20150149099
2015-05-28

Optical flow measuring device and method of operation

#90
20150146934
2015-05-28

System for monitoring a surface for gas and oil flow

#91
20150145986
2015-05-28

Annular thermoacoustic energy converter

#92
20150132723
2015-05-14

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

#93
20150119724
2015-04-30

Catheter systems and methods for determining blood flow rates with optical sensing

#94
20140354795
2014-12-04

Low cost optical high speed discrete measurement system

#95
20140324366
2014-10-30

Systems and methods for analyzing flowback compositions in real time

#96
20140290380
2014-10-02

Flow rate measuring device

#97
20140272984
2014-09-18

Microfluidic flow monitoring

#98
20140076547
2014-03-20

Multiphase flowmeter for subsea applications

#99
20140071256
2014-03-13

Femtosecond laser excitation tagging anemometry

#100
20140002640
2014-01-02

Flow rate measuring apparatus

#101
20130228689
2013-09-05

Gas flow meter and method for measuring velocity of gas

#102
20130211746
2013-08-15

Multiphase flow measurement system and method

#103
20130196345
2013-08-01

Methods for determining test result validity using fluid flow transit time across a test strip

#104
20130195332
2013-08-01

Methods for determining a wavefront position on a test strip

#105
20130151188
2013-06-13

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

#106
20130057675
2013-03-07

Method and arrangement for measuring flow rate of optically non-homogenous material

#107
20120300192
2012-11-29

Velocity survey with powderizer and agent flow indicator

#108
20120255787
2012-10-11

Method for hydrocarbon well completion

#109
20120203113
2012-08-09

BLOOD FLOW SENSOR

#110
20120188531
2012-07-26

Measuring device for characterizing two-phase flows

#111
20120182554
2012-07-19

In-line flow meter

#112
20120152024
2012-06-21

DISTRIBUTED ACOUSTIC SENSING (DAS)-BASED FLOWMETER

#113
20120059318
2012-03-08

OPTICAL FLOW SENSOR

#114
20120004864
2012-01-05

Optical measuring apparatus and specimen discriminating and dispensing apparatus

#115
20110216306
2011-09-08

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

#116
20110203386
2011-08-25

Optical multiphase flowmeter

#117
20110178734
2011-07-21

METHOD AND APPARATUS FOR DETERMINING THE FLOW RATE OF A FLUID

#118
20110174081
2011-07-21

Analysis device provided with flow sensor, and flow sensor adjustment method

#119
20110162458
2011-07-07

Flow sensor and analysis device provided with same

#120
20110154910
2011-06-30

Analysis device and analysis method

#121
20110154888
2011-06-30

ANALYSIS DEVICE

#122
20110106397
2011-05-05

FLUID MEASURING DEVICE

#123
20110029261
2011-02-03

FLUID MEASUREMENT DEVICE AND FLUID MEASUREMENT METHOD

#124
20100313674
2010-12-16

Apparatus and method for metering flare gas

#125
20100277716
2010-11-04

NON-CONTACT OPTICAL FLOW MEASUREMENTS

#126
20100223976
2010-09-09

HIGH FLOW RATE PROVER AND METER FOR CUSTODY TRANSFER MEASUREMENT

#127
20100209893
2010-08-19

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

#128
20100198533
2010-08-05

Gas lift well surveillance

#129
20100191482
2010-07-29

Microfluidic flow monitoring

#130
20100177930
2010-07-15

Methods for determining a liquid front position on a test strip

#131
20100138169
2010-06-03

Wet-gas flowmeter

#132
20100005866
2010-01-14

Viscometer system utilizing an optical flow cell

#133
20100000330
2010-01-07

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

#134
20090318858
2009-12-24

Optical flow sensor

#135
20090314102
2009-12-24

Polarization based fiber optic downhole flowmeter

#136
20090241685
2009-10-01

Systems and methods for intercepting submarine groundwater for desalination

#137
20090050809
2009-02-26

Fluid Flow Monitoring Device

#138
20090031797
2009-02-05

Multi-function flow tester

#139
20090013767
2009-01-15

Liquid flow measurement apparatus and method utilizing a bubble in a passage

#140
20080311665
2008-12-18

Chemical Assays

#141
20080307860
2008-12-18

Detector for Distinguishing Phases in a Multiphase Fluid Mixture

#142
20080231860
2008-09-25

Optical device and method for sensing multiphase flow

#143
20080225264
2008-09-18

Fiber optic flow sensing device and method

#144
20080195020
2008-08-14

Flow control system of a cartridge

#145
20080184809
2008-08-07

Apparatus and method for monitoring and measurement of droplets

#146
20080163696
2008-07-10

Flow Meter

#147
20080160623
2008-07-03

Method and device for bioanalyte quantification by on/off kinetics of binding complexes

#148
20080160603
2008-07-03

Flow stabilization in micro-and nanofluidic devices

#149
20080115598
2008-05-22

Microchip inspection system and program employed for the same

#150
20080066559
2008-03-20

Wet-gas flowmeter

#151
20080045848
2008-02-21

Method and system for measuring the speed of blood flow

#152
20080000307
2008-01-03

Flow rate measurement for industrial sensing applications using unsteady pressures

#153
20070278408
2007-12-06

Optical multiphase flowmeter

#154
20070251921
2007-11-01

Method and system to measure flow velocity and volume

#155
20070210268
2007-09-13

FLOW SPEED MEASURING APPARATUS AND FLOW SPEED MEASURING METHOD

#156
20070206179
2007-09-06

Method and apparatus for fluid velocity measurement based on photobleaching

#157
20070095528
2007-05-03

Method of monitoring fluid placement during stimulation treatments

#158
20070044572
2007-03-01

Method and apparatus for measuring parameters of a fluid flow using an array of sensors

#159
20070003434
2007-01-04

Flow metered analyzer

#160
20060260416
2006-11-23

Flow metering system

#161
20060242853
2006-11-02

Optical probes and probe systems for monitoring fluid flow in a well

#162
20050224229
2005-10-13

Methods of monitoring downhole conditions

#163
20050219507
2005-10-06

Method for measuring the flow of fluids

#164
20050124867
2005-06-09

Multifibre sensor for measuring perfusion

#165
20050050941
2005-03-10

Liquid measuring system

#166
20050012935
2005-01-20

Characterizing unsteady pressures in pipes using optical measurement devices

#167
20050005710
2005-01-13

Liquid metering system

#168
15672587
2017-11-14

Low cost optical high speed discrete measurement system

#169
14811994
2017-03-21

Background oriented Schlieren using celestial objects