ClassID:

165389

G01F23/76 - 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 floats characterised by the construction of the float

Recent Application in this class:
#1
20260092802
2026-04-02

TDR-BASED DETECTION OF CONTAMINATION

#2
20260079039
2026-03-19

LIQUID LEVEL DETECTOR SYSTEM

#3
20240167866
2024-05-23

Fluid level sensor for a toroid-shaped tank

#4
20240068960
2024-02-29

MEASUREMENT SYSTEM AND FLOAT

#5
20230194327
2023-06-22

APPARATUS AND METHOD OF MONITORING THE LEVEL OF A LIQUID MEDIUM IN A CONTAINER

#6
20230135411
2023-05-04

Liquid ejection apparatus

#7
20230054018
2023-02-23

Water submersion detection switch

#8
20230024079
2023-01-26

Device for the treatment of fluid mixtures

#9
20220397443
2022-12-15

Apparatus for determining a vertical level or density of a material column

#10
20220334278
2022-10-20

Array-type underwater apparatus and method for monitoring deformation of reservoir landslide

#11
20220252446
2022-08-11

Isolated industrial float assembly

#12
20220178132
2022-06-09

Spring-loaded float tree and float tree assembly

#13
20220113180
2022-04-14

Liquid level detector

#14
20210107351
2021-04-15

Liquid level detecting apparatus of tank for vehicle

#15
20210080310
2021-03-18

FLOATING ROOF MONITORING

#16
20210025748
2021-01-28

METHOD AND APPARATUS FOR REAL-TIME DETECTION OF THE LEVEL OF A CRYOGENIC LIQUID IN A CONTAINER THEREOF

#17
20200408583
2020-12-31

NOVEL FOAM-LEVEL-DETECTION TECHNOLOGY

#18
20200400482
2020-12-24

Oil level sensor guide

#19
20200333174
2020-10-22

Liquid level sensor

#20
20200278236
2020-09-03

Liquid level detection device

#21
20200209041
2020-07-02

Flood sensor

#22
20200088442
2020-03-19

Liquid level sensor mounting systems and methods

#23
20200033177
2020-01-30

Measuring tank fluids and remote monitoring system

#24
20200003605
2020-01-02

Fluid level sensor

#25
20190371549
2019-12-05

Magnetic float switch

#26
20190301920
2019-10-03

Contamination resistant liquid level sensor

#27
20190301919
2019-10-03

UNIPOLAR RESISTIVE LADDER SENSOR

#28
20190204136
2019-07-04

Hydrogen peroxide reservoir assembly including a float position sensor for determining liquid level

#29
20190184956
2019-06-20

Reservoir tank and vehicle brake apparatus

#30
20190162578
2019-05-30

Self-cleaning liquid level sensor

#31
20190153853
2019-05-23

FLOAT ARRANGEMENT AND SENSOR ARRANGEMENT FOR A PUMP JACK-TYPE WELL

#32
20190141906
2019-05-16

Plant cultivating container

#33
20190113380
2019-04-18

Fluid monitoring apparatus including fluid density detection system for subsea apparatus

#34
20190063986
2019-02-28

FLOAT INDICATOR DEVICE AND METHOD

#35
20180356272
2018-12-13

Oil level sensor guide

#36
20180348311
2018-12-06

Temperature compensation for magnetic field sensing devices and a magnetic field sensing device using the same

#37
20180348045
2018-12-06

Ball float type liquidometer with vernier display

#38
20180335333
2018-11-22

Electrical connection having a gold contact surface with discrete areas of hardness and fuel level sensor using the same

#39
20180202854
2018-07-19

Magnetic level indicator

#40
20180195014
2018-07-12

Methods of applying mono-, di- and tri-headed SAMs to equipment and products and apparatus comprising SAM surfaces

#41
20180188100
2018-07-05

Flexible float-type liquid level measurement device

#42
20180142170
2018-05-24

Methods of applying multi-bonded SAMPs to equipment and products and apparatus comprising SAM surfaces

#43
20180128669
2018-05-10

Indication type level indicator including total reflection prism

#44
20180120143
2018-05-03

Float liquid level meter indicator

#45
20170350746
2017-12-07

Measuring tank fluids and remote monitoring system

#46
20170343126
2017-11-30

Venting and/or bleeding valve

#47
20170341510
2017-11-30

Fuel supply devices

#48
20170292871
2017-10-12

System and method for measuring fluids

#49
20170292082
2017-10-12

Bonded layer treatment method for a device utilized in a crude oil service operation, and method of installing said device

#50
20170292081
2017-10-12

SAMP coated cooperating surfaces, method of treating cooperating surfaces, and method of installing cooperating surfaces into crude oil service operation

#51
20170284852
2017-10-05

Device for determining liquid level in a container

#52
20170138780
2017-05-18

Visual liquid level indicator

#53
20170138779
2017-05-18

Gutter obstruction gauge apparatus

#54
20170115156
2017-04-27

Syringe with indicator float

#55
20170115155
2017-04-27

Self-contained, buoyant, and water-tight wireless flood detector

#56
20170102261
2017-04-13

Fluid level sensor

#57
20170074715
2017-03-16

Measuring device and method for measuring the level of a liquid in a container

#58
20170029728
2017-02-02

SAMP treatment method for a device utilized in a crude oil service operation, and method of installing said device

#59
20160349098
2016-12-01

MAGNETIC ACTUATED CONTACT USING A CONDUCTIVE MAGNETIC CUSHION

#60
20160348502
2016-12-01

Monitoring probe for detecting the position of a fresh water-salt water interface in an observation well

#61
20160313172
2016-10-27

Liquid level detector and fuel pump module including liquid level detector

#62
20160097672
2016-04-07

Systems and method for lagrangian monitoring of flooding conditions

#63
20150377688
2015-12-31

SENSOR AND METHOD OF MANUFACTURING SENSOR

#64
20150276466
2015-10-01

Floating mechanical level sensor

#65
20150259894
2015-09-17

Control of toilet bowl fill flow

#66
20150259100
2015-09-17

Device for indicating the filling level of a container

#67
20150153214
2015-06-04

Liquid level measuring device

#68
20150068301
2015-03-12

Dual measurement liquid level transducer

#69
20150047115
2015-02-19

Toilet bowl water level indication

#70
20150040816
2015-02-12

Fluid level indicator

#71
20140366627
2014-12-18

Method and apparatus for detection of phase separation in storage tanks

#72
20140361887
2014-12-11

Self-contained, buoyant, and water-tight wireless flood detector

#73
20140345977
2014-11-27

Fluid level detection device with stabilizer

#74
20140283931
2014-09-25

Reservoir assembly for storing hydrogen peroxide for use with a hydrogen peroxide vaporizer in association with a filler

#75
20140207395
2014-07-24

Fuel storage tank water detector with triggered density

#76
20140076046
2014-03-20

Fuel amount detection device for vehicle

#77
20140053329
2014-02-27

Control of toilet bowl fill flow

#78
20130327625
2013-12-12

Magnetic float switch

#79
20130289878
2013-10-31

System for monitoring coastal underground water

#80
20130139586
2013-06-06

Battery-less active float for inductive sensor for monitoring fluid level and displacement

#81
20130111988
2013-05-09

Water Well Gauge

#82
20130063278
2013-03-14

Utility network management system

#83
20130000401
2013-01-03

Float for displaying a fill level

#84
20120204636
2012-08-16

Buoyancy force-based liquid level measurement

#85
20120152016
2012-06-21

Magnetostrictive probe having phase separation float assembly

#86
20110277546
2011-11-17

TANK FULLNESS MONITORING SYSTEM

#87
20110220227
2011-09-15

Auxiliary tank and mains water supply system

#88
20110170824
2011-07-14

Optical switch

#89
20110090088
2011-04-21

Method and apparatus for detection of phase separation in storage tanks using a float sensor

#90
20110083504
2011-04-14

Device for measuring the fill level in a liquid container

#91
20110012592
2011-01-20

Magnetic flux oil level sensor for use in aircraft lubrication systems

#92
20100276326
2010-11-04

Pressure vessel with COliquid level indicator for a paintball marker

#93
20100269587
2010-10-28

Low liquid level detecting device and method

#94
20100269585
2010-10-28

LIQUID DETECTING DEVICE

#95
20100218601
2010-09-02

Multiphase-liquid level data logger

#96
20100163567
2010-07-01

WATER INTAKE AMOUNT MANAGEMENT DEVICE

#97
20100139394
2010-06-10

Level indicator

#98
20100095446
2010-04-22

Toilet bowl water level indication

#99
20100089148
2010-04-15

Method and system for the protection of internal filters of a LTFT slurry bubble reactor

#100
20100066548
2010-03-18

Optical switch

#101
20090126483
2009-05-21

Fluid monitoring apparatus and method

#102
20080314143
2008-12-25

Device for measuring level of liquid

#103
20080297359
2008-12-04

Optical switch

#104
20080190970
2008-08-14

Dosing system

#105
20080168836
2008-07-17

Low liquid level detecting device and method

#106
20080083761
2008-04-10

Reservoir For Running Material

#107
20070295085
2007-12-27

Liquid Level and Density Measurement Device

#108
20070283756
2007-12-13

Parallelogram actuated liquid level sensor

#109
20070273390
2007-11-29

Characterizing Substances with Multistatic Probes

#110
20070272009
2007-11-29

Float for a fill level sensor

#111
20070251316
2007-11-01

Multiphase-liquid level data logger

#112
20070227244
2007-10-04

Fluid level switch

#113
20070209979
2007-09-13

Urine diverter with end of life cycle indicator

#114
20070193127
2007-08-23

Foldable Mosquito-Free Patio

#115
20070028831
2007-02-08

Pop-up sewer backup indicator

#116
20070006608
2007-01-11

Oil checking device for compressor of air conditioning system

#117
20060272203
2006-12-07

Adjustable float tree

#118
20060267751
2006-11-30

Low-level oil sensor

#119
20060207323
2006-09-21

Float

#120
20060168717
2006-08-03

Toilet bowl water level indication

#121
20060168716
2006-08-03

Control of toilet bowl fill flow

#122
20060151362
2006-07-13

Septic Tank Fluid Level Signal

#123
20050284220
2005-12-29

Float arm assembly and method of manufacture

#124
20050150293
2005-07-14

Automatically actuated liquid level sensor

#125
20050045458
2005-03-03

Latching fluid level switch

#126
16431210
2020-11-17

Invertible optical float switch