ClassID:

165135

G01F1/88 - 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; Devices for measuring mass flow of a fluid or a fluent solid material; Indirect mass flowmeters, e.g. measuring volume flow and density, temperature or pressure with differential-pressure measurement to determine the volume flow

Recent Application in this class:
#1
20250180386
2025-06-05

DEVICES FOR DETECTING MATERIAL DEPOSITS IN FLUID FLOW CONDUITS

#2
20250146851
2025-05-08

FLOW CONTROL SYSTEM, METHOD, AND APPARATUS

#3
20250130087
2025-04-24

METERING METHOD BASED ON GAS VOLUME FRACTION FITTING FOR WET NATURAL GAS

#4
20250130086
2025-04-24

METERING METHOD BASED ON CONVERTED SLIP RATIO FITTING FOR WET NATURAL GAS

#5
20250044135
2025-02-06

METHOD FOR DETERMINING A SIMULATED CURRENT MASS FLOW IN A COOLANT CIRCUIT

#6
20240418552
2024-12-19

METHOD FOR DETERMINING A GAS PHASE MASS FRACTION AND/OR GAS PHASE MASS FLOW RATE OF A MULTI-PHASE MEDIUM WITH A LIQUID PHASE AND A GAS PHASE FLOWING IN A MEASURING TUBE, AND MEASURING SENSOR THEREFOR

#7
20240410732
2024-12-12

INTEGRATED MAINTENANCE SYSTEM FOR MULTIPHASE METERING SYSTEM

#8
20240361163
2024-10-31

QUANTIFICATION OF LIQUID FLOW RATE FOR LIQUID MIXTURE

#9
20240344411
2024-10-17

REAL TIME FLOW RATE AND RHEOLOGY MEASUREMENT

#10
20240337515
2024-10-10

System for measuring the flow rate of liquid in a microfluidic pipe

#11
20240003727
2024-01-04

MEASURING DEVICE FOR METERING FLUIDS, AND METHOD FOR METERING BY MEANS OF A MEASURING DEVICE OF THIS TYPE

#12
20230392965
2023-12-07

FLUID MONITORING MODULE ARRANGEMENTS

#13
20230366712
2023-11-16

MEASURING THE FLOW RATE OF FLUIDS WITH DIELECTRIC CONTRAST ANALYSIS

#14
20230358620
2023-11-09

System and Method for Non-Invasive Determining of a Fluid Temperature

#15
20230288240
2023-09-14

Method for determining the mass flow in an internal combustion engine

#16
20230287746
2023-09-14

Real time flow rate and rheology measurement

#17
20230266156
2023-08-24

Method and apparatus for pressure based mass flow control

#18
20230266155
2023-08-24

Drilling mud flow metering system and method

#19
20230160297
2023-05-25

SYSTEM FOR MONITORING REAL- TIME FLOW ASSURANCE OCCURRENCES

#20
20230152136
2023-05-18

Determining fluid flow across rotary pump

#21
20230127693
2023-04-27

Binary gas purity analyzer

#22
20230032537
2023-02-02

Real time flow rate and rheology measurement

#23
20220373376
2022-11-24

ESTIMATING FLOW RATE AT A PUMP

#24
20220357191
2022-11-10

Mass flow meter

#25
20220243581
2022-08-04

Flow regulation tool

#26
20220090951
2022-03-24

Devices for detecting material deposits in fluid flow conduits

#27
20220074766
2022-03-10

Apparatus and method for measuring flow-permeable surface area of porous powders using volume flow rate

#28
20220065677
2022-03-03

Wide range flow measuring device having two Coriolis meters arranged in series and a bypass line to bypass the second Coriolis meter

#29
20220011146
2022-01-13

Airway Detection Using Air Pressure Differential

#30
20210404849
2021-12-30

Multiphase flowmeter and related methods

#31
20210372838
2021-12-02

Measuring the flow rate of fluids with dielectric contrast analysis

#32
20210364340
2021-11-25

Method for the gravimetric control of a metering device for a bulk material during the refilling of its storage container, and metering device for carrying out the method

#33
20210325224
2021-10-21

Device and method for total cross-section measurement of mass flow rate of gas, liquid and solid in multiphase flow

#34
20210325220
2021-10-21

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

#35
20210310844
2021-10-07

Flow rate control system and flow rate measurement method

#36
20210223798
2021-07-22

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

#37
20210223797
2021-07-22

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

#38
20210102826
2021-04-08

Fluid monitoring module arrangements

#39
20210096013
2021-04-01

Systems and Methods for Reference Volume for Flow Calibration

#40
20200400470
2020-12-24

Flow control system, method, and apparatus

#41
20200393279
2020-12-17

Method for determining a volumetric and/or mass flow rate

#42
20200348703
2020-11-05

Pressure compensation chamber

#43
20200326220
2020-10-15

System and method for measuring saturated steam flow using redundant measurements

#44
20200325772
2020-10-15

Method to use a buoyant body to measure two-phase flow in horizontal wells

#45
20200319658
2020-10-08

WIDE RANGE. LOW FLOW RATE OF DECAY, TEMPERATURE DETERMINATION FLOW CONTROLLER

#46
20200318562
2020-10-08

Fuel type prediction from mass flow measurements and thermal conductivity sensor

#47
20200264020
2020-08-20

Device for measuring flow rate of wet gas based on an exempt radioactive source

#48
20200171414
2020-06-04

Filter status sensor device, method of use, and automatic replenishment system

#49
20200103386
2020-04-02

Self-contained sensor module for hazardous locations

#50
20200088558
2020-03-19

Fluid monitoring module arrangements

#51
20200024085
2020-01-23

Measurement of product pellets flow rate

#52
20190257261
2019-08-22

Methods and system for adjusting cylinder air charge of an engine

#53
20190219432
2019-07-18

Apparatus and method for measuring mass flow-rates of gas, oil and water phases in wet gas

#54
20190204128
2019-07-04

Apparatus and methods for self-correcting pressure based mass flow controller

#55
20190204127
2019-07-04

Systems and methods for reference volume for flow calibration

#56
20190178690
2019-06-13

Fluid device and program for fluid device

#57
20190150316
2019-05-16

Circuit board cooling

#58
20190145808
2019-05-16

Wet gas measuring device

#59
20190120151
2019-04-25

Fuel type prediction from mass flow measurements and thermal conductivity sensor

#60
20190063216
2019-02-28

Multiphase flow meter with tuning fork

#61
20180306615
2018-10-25

Method and apparatus for self verification of pressured based mass flow controllers

#62
20180266865
2018-09-20

Diagnostic system, diagnostic method, diagnostic program, and flow rate controller

#63
20180266858
2018-09-20

Systems and methods for detecting oil in a fluid mixture

#64
20180252566
2018-09-06

Estimating flow rate at a pump

#65
20180252189
2018-09-06

Air inlet system

#66
20180246024
2018-08-30

Method and measuring apparatus for determining compressibility of a flowing fluid

#67
20180216976
2018-08-02

Flow control system, method, and apparatus

#68
20180031143
2018-02-01

Balancing valve for adjusting the distribution of fluids in multiple pipes

#69
20180023988
2018-01-25

COMPUTER-READABLE RECORDING MEDIUM, PARTICLE SIMULATION METHOD, AND INFORMATION PROCESSING APPARATUS

#70
20170336810
2017-11-23

WIRELESS FLOW RESTRICTOR OF A FLOWMETER

#71
20170328151
2017-11-16

Drilling system and method having flow measurement choke

#72
20170305689
2017-10-26

Measurement of product pellets flow rate

#73
20170261357
2017-09-14

Tomography apparatus, multi-phase flow monitoring system, and corresponding methods

#74
20170199529
2017-07-13

System for and method of monitoring flow through mass flow controllers in real time

#75
20170023393
2017-01-26

Correction of natural gas flow calculations for the effects of water vapor

#76
20170023391
2017-01-26

Contoured insert for flow verification

#77
20170016642
2017-01-19

Systems for Calibrating Airflow Rates in Heating, Ventilating, and Air Conditioning (HVAC) Ducts and HVAC Systems Including the Same

#78
20170003691
2017-01-05

Flow rate measuring device

#79
20160349092
2016-12-01

Metering apparatus for and method of determining a characteristic of a fluid flowing through a pipe

#80
20160339452
2016-11-24

Single, thief-sampling, calibration and control of separator apparatus and method

#81
20160258799
2016-09-08

Method and device for recognizing an error in the acquisition of sensor quantities relating to a mass flow or to a pressure in a gas line system of an internal combustion engine

#82
20160258798
2016-09-08

Ultrasound fuel flow sensing and control

#83
20160252912
2016-09-01

Pressure-based gas flow controller with dynamic self-calibration

#84
20160216713
2016-07-28

Flow control system, method, and apparatus

#85
20160169725
2016-06-16

Semi-empirical mass flow model and calibration method for undeveloped flow regions in an air seeder

#86
20160169724
2016-06-16

System and method for monitoring mass flow stability at variable air flow rates in an air seeder

#87
20160139097
2016-05-19

Method for verifying correct function of sampling equipment

#88
20160116320
2016-04-28

Mass airflow sensor for internal combustion engines

#89
20150355068
2015-12-10

System and methodology for determining properties of a substance

#90
20150276441
2015-10-01

Flow sensor including a tube extending from a housing and static and stagnation pressure ports along the tube

#91
20150275805
2015-10-01

Mass flow rate determination

#92
20150247749
2015-09-03

Wet gas flow measuring method and apparatus

#93
20150219480
2015-08-06

Self-diagnosing differential pressure flow meter including a directed pressure port

#94
20150211906
2015-07-30

Method for detecting the flow rate value of a centrifugal pump

#95
20150160057
2015-06-11

SYSTEMS AND METHODS FOR DETERMINING MASS FLOW MEASUREMENTS OF FLUID FLOWS

#96
20150134275
2015-05-14

Steam flow rate metering device and metering method therefor

#97
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

#98
20150107369
2015-04-23

Method of, and apparatus for, measuring the mass flow rate of a gas

#99
20150007897
2015-01-08

System and method for providing a self validating mass flow controller and mass flow meter

#100
20140371926
2014-12-18

Pressure compensated flow rate controller with BTU meter

#101
20140216073
2014-08-07

Method of charging a coolant

#102
20140083514
2014-03-27

Method and apparatus for self verification of pressure-based mass flow controllers

#103
20140069208
2014-03-13

Self-diagnosing differential pressure flow meter

#104
20130298696
2013-11-14

Method and system for measuring fluid flow in bell nipples using pressure measurement

#105
20130247674
2013-09-26

Fluid flow testing system

#106
20120285259
2012-11-15

Flow meter

#107
20120216625
2012-08-30

System, method and apparatus for measuring multiphase flow

#108
20120185102
2012-07-19

Pressure compensated flow rate controller with BTU meter

#109
20120180876
2012-07-19

Flow rate measuring mechanism, mass flow controller, and pressure sensor

#110
20120166110
2012-06-28

METHOD AND SYSTEM FOR COMPONENT RESISTANCE TO FLOW

#111
20120048030
2012-03-01

Apparatus for use in determining a plurality of characteristics of a multiphase flow within a pipe

#112
20120046870
2012-02-23

Multiphase flow meter for subsea applications using hydrate inhibitor measurement

#113
20110301877
2011-12-08

Method and apparatus for wet gas flow measurements and measurement of gas properties

#114
20110301867
2011-12-08

Fluid flow measurement with phase-based diagnostics

#115
20110290035
2011-12-01

Method and apparatus for measurement of composition and flow rates of a wet gas

#116
20110264384
2011-10-27

Flow meter

#117
20110138929
2011-06-16

Kinetic Flow Meter

#118
20110137581
2011-06-09

Method and apparatus for enhancing in-situ gas flow measurement performance

#119
20110132105
2011-06-09

Method for measuring mass flow of a multi-component gas

#120
20110072911
2011-03-31

System and method for estimating EGR mass flow rates

#121
20110066293
2011-03-17

Method and system for measuring a rate of flow of an output

#122
20110040485
2011-02-17

Method of measuring multi-phase fluid flow downhole

#123
20100286931
2010-11-11

System, method and computer program for determining fluid flow rate using a pressure sensor and a thermal mass flow sensor

#124
20100280757
2010-11-04

Multi-phase fluid measurement apparatus and method

#125
20100241368
2010-09-23

Method for real time measurement of mass flow rate of bulk solids

#126
20100224009
2010-09-09

Hybrid flowmeter that includes an integral vortex flowmeter and a differential flow meter

#127
20100191481
2010-07-29

Flow metering

#128
20100138168
2010-06-03

APPARATUS AND A METHOD OF MEASURING THE FLOW OF A FLUID

#129
20100106433
2010-04-29

Multivariable process fluid flow device with fast response flow calculation

#130
20100070240
2010-03-18

Diagnostic mechanism in differential pressure type mass flow controller

#131
20100043566
2010-02-25

Measuring system with a flow conditioner arranged at an inlet of a measuring table

#132
20100037704
2010-02-18

Measuring system with a flow conditioner arranged at an inlet of a measuring tube

#133
20100011879
2010-01-21

Measuring system with a flow conditioner arranged at an inlet of a measuring tube

#134
20100011878
2010-01-21

Measuring system with a flow conditioner arranged at an inlet of a measuring tube

#135
20090326839
2009-12-31

Velocity-enhanced flow measurement

#136
20090312962
2009-12-17

Method and device for determining the instantaneous mass flow of pulsating flows

#137
20090292484
2009-11-26

Multivariable process fluid flow device with energy flow calculation

#138
20090266175
2009-10-29

Apparatus and method for characterizing two phase fluid flow

#139
20090211351
2009-08-27

Portable vehicle exhaust flow sensor

#140
20090126502
2009-05-21

Method and apparatus for tomographic multiphase flow measurements

#141
20090112440
2009-04-30

Techniques for delivering fuel to a piston aircraft engine

#142
20090099794
2009-04-16

Flow meter

#143
20090049925
2009-02-26

Medium density measuring system

#144
20090038406
2009-02-12

Medium density measuring system

#145
20090038405
2009-02-12

Measuring system for a medium flowing in a process line

#146
20090013798
2009-01-15

Medium density measuring system

#147
20080306892
2008-12-11

Multiphase flow meter for electrical submersible pumps using artificial neural networks

#148
20080300727
2008-12-04

Method of calculating pump flow rates and an automated pump control system

#149
20080173085
2008-07-24

Method & apparatus for fluid flow rate and density measurement

#150
20080148867
2008-06-26

Flow measurement apparatus

#151
20080141757
2008-06-19

Onboard method of determining EGR flow rate

#152
20080072688
2008-03-27

Measuring system with a flow conditioner arranged at an inlet of a measuring tube

#153
20080072686
2008-03-27

Measuring system with a flow conditioner arranged at an inlet of a measuring tube

#154
20080053242
2008-03-06

Process device with density measurement

#155
20080034889
2008-02-14

Method For Measuring Mass Flow Of A Multi-Component Gas

#156
20070287190
2007-12-13

Apparatus and method for determining a characteristic ratio and a parameter affecting the characterisitic ratio of a multiphase fluid mixture

#157
20070244654
2007-10-18

Multivariable mass flow rate transmitter system and flow rate setting tool

#158
20070225934
2007-09-27

Measuring apparatus

#159
20070193369
2007-08-23

Multiphasic overreading correction in a process variable transmitter

#160
20070192054
2007-08-16

Multi-variable mass/flow rate transfer device

#161
20070089789
2007-04-26

Higher accuracy pressure based flow controller

#162
20060248963
2006-11-09

Method and an arrangement for the flow monitoring of multiphase mixtures

#163
20060236779
2006-10-26

Method and apparatus for determining the gas flow rate of a gas-liquid mixture

#164
20060130755
2006-06-22

Pulsed mass flow measurement system and method

#165
20050257605
2005-11-24

Portable vehicle exhaust flow sensor

#166
20050210998
2005-09-29

Simplified fluid property measurement

#167
20050188771
2005-09-01

Flow meter for measuring fluid mixtures

#168
20050102092
2005-05-12

Computing method of engine intake air amount and air fuel ratio control method and apparatus using the same

#169
17693208
2024-04-16

Anomaly detection and evaluation for smart water system management

#170
15040355
2017-05-02

System, devices and methods for measuring differential and absolute pressure utilizing two MEMS sense elements