ClassID:

165344

G01F23/2968 - 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 Transducers specially adapted for acoustic level indicators

Recent Application in this class:
#1
20260126316
2026-05-07

ULTRASONIC LIQUID LEVEL SENSOR PROBE

#2
20260085962
2026-03-26

VIBRATING FORK LEVEL SENSOR PROBE ARRANGEMENT

#3
20260029270
2026-01-29

CONTACTLESS FLUID MONITORING SYSTEM

#4
20250389567
2025-12-25

STABILIZED MODE SPLITTING FIN SENSOR

#5
20250383225
2025-12-18

DEVICE FOR MONITORING A LIQUID IN A CONTAINER

#6
20250377234
2025-12-11

METHOD FOR DETERMINING THE FLUID FILL LEVEL IN A TANK FOR HOLDING FLUIDS, AND TANK FOR HOLDING FLUIDS

#7
20250327700
2025-10-23

LIQUID LEVEL MEASUREMENT METHOD AND LIQUID LEVEL MEASUREMENT DEVICE

#8
20250237542
2025-07-24

DECOUPLING UNIT FOR A VIBRONIC SENSOR

#9
20250180393
2025-06-05

LIQUID LEVEL SENSING SYSTEM AND METHOD FOR MEASURING LIQUID LEVEL

#10
20250102347
2025-03-27

VIBRONIC MEASURING DEVICE AND METHOD FOR SIGNAL PROCESSING IN SUCH A MEASURING DEVICE

#11
20250003786
2025-01-02

ASSEMBLY HAVING A DRIVE UNIT WITH CONNECTION LINES AND A SLEEVE FOR CONNECTING THE DRIVE UNIT TO A MEMBRANE OF A VIBRATION SENSOR, VIBRATION SENSOR, AND METHOD FOR CONNECTING A DRIVE UNIT TO A MEMBRANE OF A VIBRATION SENSOR

#12
20240068860
2024-02-29

SILO FILL LEVEL SENSOR AND METHOD

#13
20230330346
2023-10-19

Acoustic Detection of a Usage of an Injection Device

#14
20230204404
2023-06-29

MULTI-PATH ACOUSTIC SIGNAL IMPROVEMENT FOR MATERIAL DETECTION

#15
20230191039
2023-06-22

Acoustic detection of a usage of an injection device

#16
20230076911
2023-03-09

Sensor Apparatus for Capturing a Filling Level and/or a Quality of a Fluid, and Method for Producing Said Apparatus

#17
20230061414
2023-03-02

Quality and quantity sensor with redundant low quantity measurement

#18
20220349742
2022-11-03

Ultrasonic distance sensor and a method for protecting an ultrasonic transducer in an ultrasonic distance sensor

#19
20220316938
2022-10-06

Ultrasonic liquid level sensing

#20
20220299354
2022-09-22

DEVICE, SYSTEM AND METHOD FOR DETERMINING THE FILL LEVEL OF A CONTAINER

#21
20220299350
2022-09-22

STABILIZED MODE SPLITTING FIN SENSOR

#22
20220178731
2022-06-09

Multi-path acoustic signal improvement for material detection

#23
20210231484
2021-07-29

Device and method for measuring the level of liquid in a container

#24
20210181008
2021-06-17

Transducer for non-invasive measurement

#25
20210078040
2021-03-18

Ultrasonic transducer for non-invasive measurement

#26
20200400481
2020-12-24

Apparatus for determining a level and/or quality of a fluid in a fluid container

#27
20200355540
2020-11-12

Sensor arrangements, sensor systems, and methods for determining height of liquids in tanks

#28
20200333177
2020-10-22

Device and method for measuring the level of liquid in a container

#29
20200306452
2020-10-01

Acoustic detection of a usage of an injection device

#30
20200249070
2020-08-06

AUTOMATICALLY DETECTING CONTAINER DEPLETION AND SWITCH

#31
20200171539
2020-06-04

Ultrasound transducer

#32
20190368915
2019-12-05

Ultrasonic level sensor with sound trap

#33
20190345015
2019-11-14

Filling element with an oscillating body a measurement device

#34
20190310126
2019-10-10

Sensor device configuration

#35
20190257683
2019-08-22

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

#36
20190250024
2019-08-15

Fluid level sensing utilizing ring-time signatures of a transducer

#37
20190226901
2019-07-25

Electromagnetic driving/receiving unit for a field device of automation technology

#38
20190170564
2019-06-06

Ultrasonic fluid measurement calibration probe

#39
20190162577
2019-05-30

Liquid surface sensor and liquid surface detection method

#40
20190128767
2019-05-02

Frequency sub-band leak detection

#41
20190113379
2019-04-18

Ultrasound sensor

#42
20190078927
2019-03-14

SENSOR

#43
20190056259
2019-02-21

Device and method for measuring the level of liquid in a container

#44
20190025112
2019-01-24

Measurement device and method for determining a fluid flow in a measurement tube

#45
20180372533
2018-12-27

Ultrasonic Sensor For Determining A Liquid Level

#46
20180348167
2018-12-06

Combination sensor

#47
20180299319
2018-10-18

Sensor device configuration

#48
20180202853
2018-07-19

Device for providing a gas composition and temperature compensated acoustic measurement of a liquid level

#49
20180143063
2018-05-24

Liquid detecting apparatus and liquid container

#50
20180143062
2018-05-24

Sensor device configuration

#51
20180136030
2018-05-17

Level switches

#52
20180100756
2018-04-12

Liquid surface position detection device

#53
20180087950
2018-03-29

Device for measuring a fill level of a liquid in a container with an ultrasonic sensor

#54
20180074018
2018-03-15

Electromagnetic driving/receiving unit for a field device of automation technology

#55
20180021849
2018-01-25

Measuring method, system and sensor for a continuous casting machine

#56
20170363459
2017-12-21

System and method for measuring liquid level of vehicle fuel tank

#57
20170363049
2017-12-21

Fuel pump module for measuring height of fuel using ultrasonic wave

#58
20170350747
2017-12-07

Fuel sensor for flexible fuel vehicle

#59
20170307425
2017-10-26

Arrangement for transmitting and/or receiving an ultrasonic, wanted signal and ultrasonic, flow measuring device

#60
20170292870
2017-10-12

Ultrasonic level sensor with reflectors

#61
20170241954
2017-08-24

Vibronic sensor

#62
20170089751
2017-03-30

Device for determining a level of the surface of a fluid in a fluid container

#63
20170082479
2017-03-23

Apparatus and method for determining a level of a fluid surface in a fluid container

#64
20170074713
2017-03-16

Fluid detection apparatus to detect a quantity of fluid using a vibration

#65
20170059389
2017-03-02

Sensor arrangements, sensor systems, and methods for determining height of liquids in tanks

#66
20170059388
2017-03-02

Speed-of-sound independent fluid level measurement apparatus and method of use

#67
20170052054
2017-02-23

Device and method for measuring the level of liquid in a container

#68
20170016312
2017-01-19

Submersible pump monitoring

#69
20170010144
2017-01-12

System and method for measuring a speed of sound in a liquid or gaseous medium

#70
20170010143
2017-01-12

System and method for measuring a signal propagation speed in a liquid or gaseous medium

#71
20160305813
2016-10-20

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

#72
20160069730
2016-03-10

Fill-level measuring device

#73
20150377684
2015-12-31

Device for measuring a filling level of a liquid in a container with an ultrasound sensor

#74
20150377683
2015-12-31

Sensor, a sensor system, and a method of sensing in a floatation tank

#75
20150177047
2015-06-25

FLUID LEVEL MEASUREMENT SYSTEM AND METHOD

#76
20150177045
2015-06-25

Bulk acoustic wave (BAW) sensors for liquid level measurements

#77
20140366626
2014-12-18

Liquid level measuring apparatus, method, and program

#78
20140360263
2014-12-11

Multi-limit level measuring device

#79
20140352426
2014-12-04

Ultrasound level transmitter

#80
20140333176
2014-11-13

Vibration limit switch

#81
20140332032
2014-11-13

Fill level gauge with a rinsing device

#82
20140096602
2014-04-10

Oscillating device for a fill-level measurement system and a method for assembling the same

#83
20140091675
2014-04-03

Ultrasonic transducer assembly installation device and methods

#84
20140022292
2014-01-23

Piezoelectric sensor arrangement for sensing fluid level in small volume and irregular shape reservoirs

#85
20130327140
2013-12-12

Device for measuring liquid filling levels

#86
20130118254
2013-05-16

Apparatus for determining and/or monitoring a predetermined fill level

#87
20120320713
2012-12-20

Ultrasonic transducer for use in a fluid medium

#88
20120266677
2012-10-25

Ultrasonic transducer for use in a fluid medium

#89
20120261396
2012-10-18

Fluid level measurement system and method

#90
20120239316
2012-09-20

LIQUID LEVEL SENSOR

#91
20120194035
2012-08-02

Method of manufacturing a conductive adhesive bond assembly

#92
20120055246
2012-03-08

ACOUSTIC LIQUID MEASUREMENT

#93
20120031199
2012-02-09

Ultrasonic flow sensor for detecting liquid in a tube including intermediate plates mounted to the tube for mounting ultrasonic transducers

#94
20120006106
2012-01-12

Acoustic assessment of characteristics of a fluid relevant to acoustic ejection

#95
20110239664
2011-10-06

Fluid level measurement system and method

#96
20110193274
2011-08-11

Resident measurement system for charge level of blast furnace

#97
20110166797
2011-07-07

ACOUSTIC DETERMINATION OF PROPERTIES OF RESERVOIRS AND OF FLUIDS CONTAINED THEREIN

#98
20110083504
2011-04-14

Device for measuring the fill level in a liquid container

#99
20110075147
2011-03-31

Position detector, position detecting method and analyzer

#100
20110074551
2011-03-31

Radio-type transmitting device, container, transmitting/receiving system and transmitting/receiving method

#101
20110012480
2011-01-20

Vibrating element flow measurement apparatus

#102
20100327700
2010-12-30

VIBRATING ELEMENT APPARATUS

#103
20100219812
2010-09-02

Isolated magnetostrictive buffered liquid level sensor

#104
20100201226
2010-08-12

Piezoelectric transducer device

#105
20100154546
2010-06-24

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

#106
20100017152
2010-01-21

Non-Contact Apparatus for Monitoring the Height of Contents of a Moving Container, a Monitoring Station Including the Apparatus and a Non-Contact Method of Monitoring the Height of Contents of a Container

#107
20090205419
2009-08-20

Ultrasonic measuring device for a container

#108
20090145656
2009-06-11

Electrical device

#109
20090071246
2009-03-19

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

#110
20090056451
2009-03-05

Ultrasonic sensor assembly and method

#111
20090025474
2009-01-29

Ultrasonic fuel level monitoring system incorporating an acoustic lens

#112
20090019929
2009-01-22

Ultrasonic fluid measurement method

#113
20090007676
2009-01-08

Acoustic determination of properties of reservoirs and of fluids contained therein

#114
20080291435
2008-11-27

Position detector, position detecting method and analyzer

#115
20080257035
2008-10-23

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

#116
20080184794
2008-08-07

Device for measuring the level of a liquid in a container with an ultrasonic transducer

#117
20080173077
2008-07-24

Acoustic assessment of characteristics of a fluid relevant to acoustic ejection

#118
20080060430
2008-03-13

Liquid level measurement device and installation incorporating the same

#119
20080020493
2008-01-24

APPARATUS FOR SUPPLYING CHEMICAL, SEMICONDUCTOR MANUFACTURING APPARATUS HAVING THE SAME, AND METHOD FOR SUPPLYING CHEMICAL

#120
20080019217
2008-01-24

Sonar transducer

#121
20080001501
2008-01-03

Apparatus for determining and/or monitoring a process variable

#122
20070261735
2007-11-15

Liquid Amount Monitoring Apparatus, Semiconductor Manufacturing Apparatus Having the Liquid Amount Monitoring Apparatus Mounted Thereon, and Liquid Material/Liquid Amount Monitoring Method

#123
20070261487
2007-11-15

Level sensor

#124
20070240504
2007-10-18

Isolated magnetostrictive buffered liquid level sensor

#125
20070227243
2007-10-04

Method and apparatus for manufacturing a measuring device for determining and/or monitoring a process variable and measuring device

#126
20070205772
2007-09-06

Circuit arrangement and method for monitoring the function of a vibration level switch and/or a fill level measuring apparautus

#127
20070181764
2007-08-09

Field device comprising a mounting bracket adapted for mounting to an attachment surface

#128
20070180903
2007-08-09

Acoustic fluid level sensor

#129
20070085865
2007-04-19

Mounting structure, module, and liquid container

#130
20070084287
2007-04-19

Systems and methods for detecting fluids

#131
20070084283
2007-04-19

Safety tank level gauging system

#132
20070044708
2007-03-01

Ultrasonic sensor assembly and method

#133
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

#134
20070028682
2007-02-08

System for measuring fluid level using acoustic impedance matching

#135
20070018833
2007-01-25

Radio-type transmitting device, container, transmitting/receiving system and transmitting/receiving method

#136
20060290524
2006-12-28

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

#137
20060288774
2006-12-28

Fill level sensor or pressure sensor with an anti-adhesive coating

#138
20060284626
2006-12-21

Protection against the effects of condensate bridges

#139
20060260929
2006-11-23

Ultrasonic transducer for liquid metal

#140
20060236766
2006-10-26

Ultrasonic beam shaping device

#141
20060201245
2006-09-14

Orientating device for a measuring instrument

#142
20060144139
2006-07-06

Liquid level detecting apparatus

#143
20060090563
2006-05-04

Ultrasonic fluid level sensor

#144
20060007259
2006-01-12

Liquid sensor and liquid container including the sensor

#145
20050275308
2005-12-15

Method of exciting a piezoelectric crystal

#146
20050212869
2005-09-29

Acoustic assessment of characteristics of a fluid relevant to acoustic ejection

#147
20050203411
2005-09-15

Fluid-gauging probes

#148
20050182448
2005-08-18

Multiple electrode for an oscillation generator and/or oscillation detector

#149
20050092058
2005-05-05

Acoustic determination of properties of reservoirs and of fluids contained therein

#150
20050039533
2005-02-24

Measuring instrument

#151
20050035901
2005-02-17

Field interchangeable level measurement system

#152
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

#153
18301166
2023-11-07

Acoustic array liquid level sensor

#154
17689965
2024-12-24

Tank sensors