ClassID:

165390

G01F25/00 - CPC Classification

Classification description:

Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume

Sub-classes:
Recent Application in this class:
#1
20260036462
2026-02-05

METHOD FOR DETERMINING OR MONITORING THE DELIVERY FLOW OF AN ECCENTRIC SCREW PUMP

#2
20240316256
2024-09-26

OPTICAL LEVEL CONTROL SYSTEM

#3
20240247966
2024-07-25

GRID SENSOR, GRID SENSOR SYSTEM, EVALUATION DEVICE AND COMPUTER PROGRAM PRODUCT FOR CORRECTING AN INTERFERING INFLUENCE OF ONE OR MORE FLUIDS

#4
20240210968
2024-06-27

Mixed fluid delivery system

#5
20240068723
2024-02-29

Refrigerant leakage detection system

#6
20230090797
2023-03-23

Optical level control system

#7
20220261017
2022-08-18

Mixed fluid delivery system

#8
20220075396
2022-03-10

Gas-pulsing-based shared precursor distribution system and methods of use

#9
20220074784
2022-03-10

Method for putting into operation and/or checking an ultrasound throughflow measuring point

#10
20210181005
2021-06-17

Augmented flowmeter with a system for simulating fluid parameters

#11
20200330675
2020-10-22

Optical level control system

#12
20200284641
2020-09-10

Calibrating measured fill-level of a container based on measurement disruption event detection

#13
20200142374
2020-05-07

UNIVERSAL SELF LEARNING AND ADAPTABLE LEVEL SENSORS FOR RESTROOM DISPENSERS

#14
20200049542
2020-02-13

System and method for remote metering station sensor calibration and verification

#15
20190332129
2019-10-31

Gas-pulsing-based shared precursor distribution system and methods of use

#16
20190323878
2019-10-24

Device and method for measurement of ultrasonic transit times

#17
20190017855
2019-01-17

Gas supply device capable of measuring flow rate, flowmeter, and flow rate measuring method

#18
20180375680
2018-12-27

System and method for monitoring a property

#19
20180245964
2018-08-30

Volume measurement apparatus

#20
20180224319
2018-08-09

MODULAR APPARATUS FOR TESTING GAS METERS

#21
20180195444
2018-07-12

Method and device for determining a model of flowrate through a valve

#22
20180164200
2018-06-14

Fluid characteristics measurement system, program storage medium storing program for fluid characteristics measurement system, and fluid characteristics measurement method

#23
20180143064
2018-05-24

Method for operating a Coriolis mass flowmeter and Coriolis mass flowmeter

#24
20180119541
2018-05-03

Estimating pressure for hydraulic fracturing

#25
20180087954
2018-03-29

Method for detection and isolation of faulty sensors

#26
20180023995
2018-01-25

Drop ejection based flow sensor calibration

#27
20170336461
2017-11-23

INTERNAL TRANSFORMER COMPOSITE-DEFECT FUZZY DIAGNOSTIC METHOD BASED ON GAS DISSOLVED IN OIL

#28
20170241823
2017-08-24

Method for operating a Coriolis mass flowmeter

#29
20170234710
2017-08-17

Thermal air flow-rate sensor

#30
20170188486
2017-06-29

RACK AIRFLOW MONITORING SYSTEM AND METHOD

#31
20170160727
2017-06-08

Field device

#32
20170159270
2017-06-08

METHOD FOR MONITORING, COMMUNICATING AND CONTROLLING WATER CONSUMPTION AND AVAILABILITY AND SYSTEM THEREOF

#33
20170052055
2017-02-23

Flying object, detecting device, control device, and air current detecting method

#34
20160238432
2016-08-18

Apparatuses and methods for monitoring stall of motors

#35
20160154405
2016-06-02

Systems and methods for damper performance diagnostics

#36
20160120107
2016-05-05

System and method for independent calibration of meter rollers

#37
20160084687
2016-03-24

Flow metering

#38
20160003665
2016-01-07

SYSTEM AND METHOD TO AUTOMATICALLY SELF-ADJUST A VALVE PEDESTAL OF A MASS FLOW CONTROLLER

#39
20150375837
2015-12-31

Wind sensor motion compensation systems and methods

#40
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

#41
20150234381
2015-08-20

Field device commissioning system and field device commissioning method

#42
20150226596
2015-08-13

Device and method for recalibrating an exhaust gas mass flow sensor

#43
20150154817
2015-06-04

Method for processing data

#44
20150112629
2015-04-23

Validation method for automated analyzers

#45
20150066395
2015-03-05

Upstream volume mass flow verification systems and methods

#46
20150040658
2015-02-12

Multiphase Flowmeter and a Correction Method for such a Multiphase Flowmeter

#47
20150032400
2015-01-29

METHOD FOR MANAGING A THERMODYNAMIC DEVICE FOR A MOTOR VEHICLE, SYSTEM, PROGRAM, RECORDING MEDIUM AND ASSOCIATED VEHICLE

#48
20150020570
2015-01-22

DEVICE FOR DETERMINING A GAS MASS FLOW RATE, AND METHOD FOR RE-CALIBRATING SUCH A DEVICE

#49
20140366607
2014-12-18

Air flow rate adjusting apparatus

#50
20140352402
2014-12-04

Fill level measuring device

#51
20140352401
2014-12-04

ORIFICE SYSTEM

#52
20140352399
2014-12-04

Method of in line verification of a flow meter

#53
20140311237
2014-10-23

METHOD FOR DETECTING A FLOW PROPERTY OF A FLOWING FLUID MEDIUM

#54
20140288869
2014-09-25

FLUID DISPENSER CALIBRATION METHOD

#55
20140277773
2014-09-18

Systems and methods for damper performance diagnostics

#56
20140223992
2014-08-14

Apparatus and method for volume and mass estimation of a multiphase fluid stored at cryogenic temperatures

#57
20140174146
2014-06-26

Calibration tube for multiphase flowmeters

#58
20140126097
2014-05-08

Measuring arrangement for determining a measured quantity

#59
20140109686
2014-04-24

Ultrasonic flow metering system with an upstream pressure transducer

#60
20140096586
2014-04-10

DEVICE AND METHOD FOR MEASUREMENT OF ULTRASONIC TRANSIT TIMES

#61
20140060147
2014-03-06

Systems and methods for mass flow controller verification

#62
20140046612
2014-02-13

Method for calibrating a sensor for turbidity measurement

#63
20130311050
2013-11-21

Agricultural rate management

#64
20130263640
2013-10-10

Method for correlating a monitoring device to the end of service life of a filter cartridge

#65
20130030748
2013-01-31

METHOD FOR DETERMINING A DOSED, OR METERED, VOLUME OF AN AUTOMATIC PERISTALTIC SAMPLE TAKER

#66
20130030746
2013-01-31

Calibration Method

#67
20120305113
2012-12-06

Water meter

#68
20120210768
2012-08-23

Calibration tube for multiphase flowmeters

#69
20120200697
2012-08-09

Dry agricultural materials management

#70
20120158363
2012-06-21

Method for monitoring the functioning of a field device

#71
20110265549
2011-11-03

Methods and apparatus for calibrating flow controllers in substrate processing systems

#72
20110191037
2011-08-04

Fuel dispenser pulser arrangement

#73
20110178735
2011-07-21

Method for avoiding jump faulty measurements and improving accuracy in hybrid flow meters

#74
20110022334
2011-01-27

Upstream volume mass flow verification systems and methods

#75
20100307220
2010-12-09

FLOWMETER CALIBRATION TECHNIQUES

#76
20100229967
2010-09-16

Mass flow controller verifying system, verifying method and verifying program

#77
20070262814
2007-11-15

Flow meter filter system and method

#78
20070245832
2007-10-25

Compensation method and apparatus for a coriolis flow meter

#79
20070186683
2007-08-16

Coriolis flow meter and method for determining a signal difference in cabling and first and second pickoff sensors

#80
20070144234
2007-06-28

Flowmeter calibration techniques

#81
20060265168
2006-11-23

Flow meter filter system and method

#82
20060137428
2006-06-29

Oil consumption simulating device

#83
20060100807
2006-05-11

Multiple calibration ranges stored in a process transmitter

#84
20060090537
2006-05-04

Flowmeter calibration techniques

#85
20050178188
2005-08-18

Flow testing system and method

#86
20050145007
2005-07-07

Flowmeter in-situ calibration verification system