ClassID:

165341

G01F23/2965 - 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 Measuring attenuation of transmitted waves

Recent Application in this class:
#1
20260002643
2026-01-01

FILLING LEVEL MONITORING DEVICE FOR MONITORING THE FILLING LEVEL OF A FLUID CONTAINER, HYDROGEN TANK, AND AIRCRAFT COMPRISING SUCH HYDROGEN TANK

#2
20250362168
2025-11-27

NON-CONTACT LEVEL SWITCH

#3
20250327700
2025-10-23

LIQUID LEVEL MEASUREMENT METHOD AND LIQUID LEVEL MEASUREMENT DEVICE

#4
20250180393
2025-06-05

LIQUID LEVEL SENSING SYSTEM AND METHOD FOR MEASURING LIQUID LEVEL

#5
20250020500
2025-01-16

LIQUID LEVEL SWITCH SYSTEM AND LIQUID LEVEL MEASURING METHOD

#6
20230273062
2023-08-31

NON-LINEAR ULTRASOUND METHOD AND APPARATUS FOR QUANTITATIVE DETECTION OF MATERIALS

#7
20230204404
2023-06-29

MULTI-PATH ACOUSTIC SIGNAL IMPROVEMENT FOR MATERIAL DETECTION

#8
20220339836
2022-10-27

SYSTEM AND METHOD FOR ULTRASONIC INSPECTION

#9
20220178731
2022-06-09

Multi-path acoustic signal improvement for material detection

#10
20220090956
2022-03-24

Non-linear ultrasound method and apparatus for quantitative detection of materials

#11
20220090955
2022-03-24

SYSTEM AND METHOD FOR MEASURING THE FILLING LEVEL OF A FLUID CONTAINER BY MEANS OF ACOUSTIC WAVES

#12
20210063229
2021-03-04

Liquid level monitoring system and method

#13
20210025747
2021-01-28

System and method for liquid level monitoring

#14
20200378818
2020-12-03

Non-linear ultrasound method and apparatus for quantitative detection of materials

#15
20190345015
2019-11-14

Filling element with an oscillating body a measurement device

#16
20190250024
2019-08-15

Fluid level sensing utilizing ring-time signatures of a transducer

#17
20190128767
2019-05-02

Frequency sub-band leak detection

#18
20190078927
2019-03-14

SENSOR

#19
20190011325
2019-01-10

Device for detecting refrigerant leak in refrigeration cycle

#20
20180188095
2018-07-05

Sound wave detection-based measurement method and device for liquid volume inside container

#21
20180100756
2018-04-12

Liquid surface position detection device

#22
20180080809
2018-03-22

Method for controlling the liquid level in tanks as per characteristics of lamb waves and device for ultrasonic control of the liquid level in tanks

#23
20170343346
2017-11-30

ULTRASONIC TILT SENSOR AND RELATED METHODS

#24
20170336243
2017-11-23

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

#25
20170082478
2017-03-23

SYSTEM AND METHOD OF ULTRASOUND LIQUID LEVEL DETECTION

#26
20170059388
2017-03-02

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

#27
20160207153
2016-07-21

Ultrasonic liquid level sensing systems

#28
20160061645
2016-03-03

Ultrasonic liquid level sensing systems

#29
20150377683
2015-12-31

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

#30
20150226595
2015-08-13

Systems and methods of determining a quality and a quantity of a fluid

#31
20150066339
2015-03-05

Wade sensing display control system

#32
20150047438
2015-02-19

Acoustic probing technique for the determination of multiple liquid/froth interfaces in separation and storage vessels based on an oblique tomographic analysis approach

#33
20150046071
2015-02-12

Vehicle under-body mounted sensor and control system

#34
20150033846
2015-02-05

Vehicle orientation device and method

#35
20140366626
2014-12-18

Liquid level measuring apparatus, method, and program

#36
20140347178
2014-11-27

Wading vehicle water level display

#37
20140338443
2014-11-20

Ultrasonic liquid level sensing systems

#38
20140331747
2014-11-13

Method for determining and/or monitoring viscosity and corresponding apparatus

#39
20140324288
2014-10-30

Wading depth estimation for a vehicle

#40
20140288793
2014-09-25

Wading vehicle advisory speed display

#41
20140260709
2014-09-18

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

#42
20140250986
2014-09-11

Systems and methods of determining a quality and a quantity of a fluid

#43
20140245834
2014-09-04

Vibronic measuring device

#44
20140230542
2014-08-21

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

#45
20140156126
2014-06-05

Vehicle control system

#46
20140085066
2014-03-27

Wading vehicle water level display

#47
20140069186
2014-03-13

Acoustic flexural order level sensor

#48
20130336090
2013-12-19

Ultrasonic wading detection for a vehicle

#49
20130307679
2013-11-21

Wading vehicle depth measurement apparatus

#50
20130118253
2013-05-16

Acoustic array sensor

#51
20130091946
2013-04-18

Liquid level sensor with improved temperature range

#52
20120279283
2012-11-08

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

#53
20120194035
2012-08-02

Method of manufacturing a conductive adhesive bond assembly

#54
20120174671
2012-07-12

METHOD FOR DETERMINING AND/OR MONITORING AT LEAST ONE PHYSICAL, PROCESS VARIABLE

#55
20120119758
2012-05-17

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

#56
20120118059
2012-05-17

Systems and methods of determining a quality and/or depth of diesel exhaust fluid

#57
20120031199
2012-02-09

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

#58
20110132084
2011-06-09

LIQUID LEVEL SENSING SYSTEM

#59
20110000276
2011-01-06

Method for checking the state of a pipette, pipetting method, pipetting device, and suction tube for a pipetting device

#60
20100294034
2010-11-25

Fluid level detector

#61
20100236323
2010-09-23

Method for determining and/or monitoring viscosity and corresponding apparatus

#62
20100206066
2010-08-19

Device and method for determination regarding the liquid level in containers

#63
20100154546
2010-06-24

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

#64
20090312846
2009-12-17

Apparatus for determining and/or monitoring a process variable

#65
20080257035
2008-10-23

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

#66
20080190193
2008-08-14

Fluid level detector

#67
20080147280
2008-06-19

Method and apparatus for sensing a rollover

#68
20080046149
2008-02-21

Vehicle Component Control Methods and Systems Based on Vehicle Stability

#69
20080040005
2008-02-14

Vehicle component control methods and systems based on vehicle stability

#70
20070169549
2007-07-26

Method and apparatus for sensing fuel levels in tanks

#71
20070138100
2007-06-21

Detection systems and methods

#72
20070109368
2007-05-17

LIQUID CONTAINER AND LIQUID FILLING METHOD

#73
20070096745
2007-05-03

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

#74
20070021931
2007-01-25

Field device for determining and/or monitoring a process variable

#75
20060169056
2006-08-03

Fluid level detector

#76
20060093525
2006-05-04

Level sensor apparatus for detecting contact of a pipetting needle with a liquid in a vessel

#77
20060090563
2006-05-04

Ultrasonic fluid level sensor

#78
20060005312
2006-01-12

System and method for measuring and monitoring overflow or wetness conditions in a washroom

#79
20050149277
2005-07-07

Fluid measurement

#80
20050055136
2005-03-10

Detection systems and methods

#81
17067735
2023-01-10

Group electronic game or poll using beverage sensors

#82
16551125
2020-02-18

Escape system for a sinking car and ultrasonic component thereof

#83
16180106
2019-11-26

Escape system for a sinking car and ultrasonic component thereof