ClassID:

165343

G01F23/2967 - CPC Classification

Classification description:

Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material; Acoustic waves making use of acoustical resonance or standing waves for discrete levels

Recent Application in this class:
#1
20250060295
2025-02-20

VIBRONIC MULTISENSOR

#2
20230417591
2023-12-28

METHOD FOR OPERATING A VIBRONIC SENSOR

#3
20230296421
2023-09-21

Vibrating fork liquid level switch with verification

#4
20220221324
2022-07-14

Method for monitoring condition of vibronic sensor for determining and monitoring process variable of medium in container, involves determining status indicator from comparison measured value for amplitude and frequency with reference value

#5
20220082428
2022-03-17

Vibrating fork level switches

#6
20220057250
2022-02-24

Redundant level measuring system

#7
20220003591
2022-01-06

Vibronic sensor with temperature compensation

#8
20210190574
2021-06-24

FLUID LEVEL SENSORS

#9
20210095958
2021-04-01

ORIENTATION SENSING

#10
20210033453
2021-02-04

Piezo stack drive of a vibration limit switch with front-mounted fastening mechanism

#11
20200340896
2020-10-29

Vibronic sensor

#12
20200191693
2020-06-18

Monitoring the state of a coil in a sensor

#13
20200116545
2020-04-16

MONITORING THE CONDITION OF A VIBRONIC SENSOR

#14
20200041326
2020-02-06

Vibronic sensor with interference compensation

#15
20190339107
2019-11-07

Vibronic sensor

#16
20190331519
2019-10-31

Fail-safe limit level switch

#17
20190242739
2019-08-08

Method for monitoring the condition of an electromechanical resonator

#18
20190226900
2019-07-25

Vibronic sensor

#19
20190186980
2019-06-20

Vibrating fork level switches

#20
20190063985
2019-02-28

Method for operating a limit sensor

#21
20190003874
2019-01-03

Phase control unit for a vibronic sensor

#22
20180372534
2018-12-27

Apparatus for reliably determining and/or monitoring a process variable

#23
20180369461
2018-12-27

Fluid volume measurement using canister resonance for reduced pressure therapy systems

#24
20180364090
2018-12-20

Liquid level sensor and method

#25
20180136030
2018-05-17

Level switches

#26
20180128670
2018-05-10

Level switches

#27
20180052035
2018-02-22

Vibronic Sensor with a Tuning Element

#28
20180024097
2018-01-25

Apparatus for determining and/or monitoring at least one process variable of a medium

#29
20170370167
2017-12-28

MUD-GAS SEPARATOR APPARATUS AND METHODS

#30
20170343459
2017-11-30

Vibronic sensor

#31
20170341830
2017-11-30

METHOD AND ASSEMBLY FOR MEASURING FLUID LEVEL IN A BEVERAGE CONTAINER USING ACOUSTIC RESONANCE MEASUREMENT DEVICE

#32
20170336243
2017-11-23

Electrical device with a housing holding insulation oil and a sensor and method of monitoring the device

#33
20170241954
2017-08-24

Vibronic sensor

#34
20160349101
2016-12-01

Powder detection device, image forming apparatus, powder detection method, and non-transitory recording medium

#35
20160305813
2016-10-20

System for determining and/or monitoring a process variable of a medium

#36
20160258803
2016-09-08

LIQUID MEASURING APPARATUS

#37
20160223381
2016-08-04

Limit level switch comprising an integrated position sensor

#38
20160209368
2016-07-21

Apparatus for determining or monitoring a process variable of automation technology

#39
20160109285
2016-04-21

Method and device for monitoring a process variable with vibronic sensor

#40
20160069730
2016-03-10

Fill-level measuring device

#41
20160059153
2016-03-03

Sand separator interface detection

#42
20160054212
2016-02-25

Method of generating a drive signal for a vibratory sensor

#43
20150135826
2015-05-21

Measuring device with a mechanically oscillatable unit and an electrodynamic transducer unit

#44
20150107356
2015-04-23

Apparatus for determining and/or monitoring a limit value of a process variable

#45
20150096385
2015-04-09

Method of, and apparatus for, measuring the physical properties of two-phase fluids

#46
20150068300
2015-03-12

Fill-level measuring device

#47
20150047428
2015-02-19

Apparatus for monitoring a predetermined fill level

#48
20150025485
2015-01-22

Fluid volume measurement using canister resonance for reduced pressure therapy systems

#49
20150002301
2015-01-01

Car wash chemical solution level monitoring system

#50
20140373632
2014-12-25

Apparatus for determining and/or monitoring at least one process variable

#51
20140366626
2014-12-18

Liquid level measuring apparatus, method, and program

#52
20140360263
2014-12-11

Multi-limit level measuring device

#53
20140352427
2014-12-04

Apparatus for determining and/or monitoring at least one process variable

#54
20140339919
2014-11-20

System of servicing device and field device and method for communication with a field device

#55
20140333176
2014-11-13

Vibration limit switch

#56
20140331747
2014-11-13

Method for determining and/or monitoring viscosity and corresponding apparatus

#57
20140320224
2014-10-30

Apparatus for determining and/or monitoring at least one process variable

#58
20140301902
2014-10-09

Optimizing acoustic efficiency of a sonic filter or separator

#59
20140260709
2014-09-18

Apparatus for determining and/or monitoring at least one process variable

#60
20140245834
2014-09-04

Vibronic measuring device

#61
20140053640
2014-02-27

Sensor device for detecting flowable media, a pressure device and a measuring method

#62
20130313084
2013-11-28

Vibration limit switch system

#63
20130269414
2013-10-17

Method and apparatus for orienting a measuring device

#64
20130263666
2013-10-10

System for monitoring the leak tightness of a tank

#65
20130220012
2013-08-29

Ultrasonic level sensor for aerated fluids

#66
20130139585
2013-06-06

Device for determining and/or monitoring at least one predetermined fill level

#67
20130104647
2013-05-02

Apparatus for determining and/or monitoring a process variable of a medium

#68
20130036816
2013-02-14

Apparatus for determining and/or monitoring a process variable of a medium

#69
20120285239
2012-11-15

Apparatus for determining at least one process variable

#70
20120279283
2012-11-08

Apparatus and method for operating an apparatus for determining and/or monitoring at least one physical process variable

#71
20120194035
2012-08-02

Method of manufacturing a conductive adhesive bond assembly

#72
20120174665
2012-07-12

Fill-level measuring device

#73
20120144901
2012-06-14

Multivariable sensor for determining and/or monitoring fill level and density and/or viscosity of a liquid in a container

#74
20120119758
2012-05-17

Method for determining and/or monitoring at least one physical, process variable of a medium

#75
20120111106
2012-05-10

VIBRATING ELEMENT APPARATUS

#76
20120103088
2012-05-03

Apparatus for determining and/or monitoring a process variable

#77
20120085165
2012-04-12

Method for determining or monitoring a predetermined fill level, a phase boundary or a density of a medium

#78
20110226064
2011-09-22

Apparatus for determining and/or monitoring a process variable

#79
20110179860
2011-07-28

Apparatus for determining and/or monitoring a process variable of a medium

#80
20110132084
2011-06-09

LIQUID LEVEL SENSING SYSTEM

#81
20110100118
2011-05-05

Detector of liquid consumption condition

#82
20100327700
2010-12-30

VIBRATING ELEMENT APPARATUS

#83
20100309600
2010-12-09

Apparatus for determining and/or monitoring a process variable

#84
20100236323
2010-09-23

Method for determining and/or monitoring viscosity and corresponding apparatus

#85
20100161251
2010-06-24

Method for determining and/or monitoring a process variable of a medium, and corresponding apparatus

#86
20100154546
2010-06-24

Apparatus for determining and/or monitoring a process variable of a medium

#87
20100083752
2010-04-08

Apparatus for ascertaining and/or monitoring a process variable of a meduim

#88
20100083751
2010-04-08

Process for measuring a fill level or limit state, circuit for a device that measures a fill level or limit state, and device that measures a fill level or limit state

#89
20100083750
2010-04-08

Apparatus for ascertaining and/or monitoring a process variable of a medium

#90
20100043554
2010-02-25

Apparatus for ascertaining and/or monitoring a process variable of a medium

#91
20100000316
2010-01-07

System for manufacturing a modularly structured apparatus for determining filling level

#92
20090229376
2009-09-17

Liquid sensing device and liquid container including the same

#93
20090205411
2009-08-20

Device for determining and/or monitoring a process variable of a medium

#94
20090145656
2009-06-11

Electrical device

#95
20090071246
2009-03-19

Measuring device for determining and/or monitoring the amount of contents in a container

#96
20090021566
2009-01-22

Liquid Consumption Status Detecting Method, Liquid Container, and Ink Cartridge

#97
20090013779
2009-01-15

Liquid sensing apparatus for a liquid container for supplying a liquid to a liquid consuming apparatus, and a liquid container in which the liquid sensing apparatus is built

#98
20080257035
2008-10-23

Apparatus for determining and/or monitoring at least one process variable

#99
20080134788
2008-06-12

Apparatus for determining and/or monitoring a process variable of a medium

#100
20080105049
2008-05-08

Vibrating device with piezo-electrical excitation

#101
20080072667
2008-03-27

Accretion alarm for field devices

#102
20070277603
2007-12-06

Liquid consumption status detecting method, liquid container, and ink cartridge

#103
20070186646
2007-08-16

Vibratory limit switch configuration and a process for correcting the switching point of a vibratory limit switch

#104
20070096745
2007-05-03

Filling level and/or limit level measuring device with flexible connecting piece

#105
20070085865
2007-04-19

Mounting structure, module, and liquid container

#106
20070029897
2007-02-08

Device for the vibrational detection of fill-level limit state and a process for the vibrational detection of a fill-level limit state

#107
20070028691
2007-02-08

Device for determining and/or monitoring at least one physical or chemical process variable of a medium in a container

#108
20060290524
2006-12-28

Device for establishing and/or monitoring a predetermined fill level in a container

#109
20060272404
2006-12-07

Liquid consumption status detecting method, liquid container, and ink cartridge

#110
20060267784
2006-11-30

Apparatus for determining and/or monitoring a process variable

#111
20060261964
2006-11-23

Safety device for laboratory work, especially for liquid chromatography systems

#112
20060192679
2006-08-31

Plant low water alerting apparatus

#113
20060142954
2006-06-29

Device for the determination or monitoring of a physical or chemical process parameter

#114
20060137447
2006-06-29

Liquid sensing apparatus for a liquid container for supplying a liquid to a liquid consuming apparatus, and a liquid container in which the liquid sensing apparatus is built

#115
20060131994
2006-06-22

Device for monitoring a predetermined filling level of a measuring medium in a container

#116
20060053863
2006-03-16

Self-diagnosis of a vibrating level gauge

#117
20060031030
2006-02-09

Portable fluid sensing device and method

#118
20060021430
2006-02-02

Level meter, oscillating bodies, and equalizing body for a level meter, as well as a drive and/or receiving device for the same

#119
20060007259
2006-01-12

Liquid sensor and liquid container including the sensor

#120
20060001714
2006-01-05

Liquid container having liquid consumption detecting device

#121
20050210954
2005-09-29

Method for operating tests of vibration level switch sensors and corresponding vibration level switch

#122
20050160797
2005-07-28

Field device for determining and/or monitoring a process variable

#123
20050071113
2005-03-31

Electronic field device with a sensor unit for process measurement

#124
20050034521
2005-02-17

Device for determining and/or monitoring at least one physical parameter and having a piezo-drive for oscillation-excitation and -detection