ClassID:

165297

G01F23/14 - 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 measurement of pressure

Sub-classes:
Recent Application in this class:
#1
20260029268
2026-01-29

LEVEL SENSOR

#2
20260016329
2026-01-15

Device With At Least One Energy Storage

#3
20250333970
2025-10-30

POOL WATERLINE DETECTION APPARATUS AND METHOD FOR OBTAINING WATERLINE INFORMATION

#4
20250216244
2025-07-03

AUTOMATIC LOAD DETECTION FOR AN AGRICULTURAL MACHINE AND AGRICULTURAL HARVESTER

#5
20250200512
2025-06-19

System and Method for Determining Volume of Fluid in a Tank

#6
20250180393
2025-06-05

LIQUID LEVEL SENSING SYSTEM AND METHOD FOR MEASURING LIQUID LEVEL

#7
20250178830
2025-06-05

FLOATING ROOF TANK MONITORING APPARATUS AND METHODS

#8
20250060238
2025-02-20

SYSTEM AND METHODS FOR FIELD MONITORING OF STATIONARY ASSETS

#9
20250059883
2025-02-20

MONITORING SYSTEM AND METHOD

#10
20250044137
2025-02-06

WATER LEVEL SENSOR, WATER STORAGE TANK, AND CIRCULATING WATER TREATMENT APPARATUS

#11
20250022624
2025-01-16

Nuclear Reactor Fluid Level Control System

#12
20250020499
2025-01-16

DEVICE FOR THE INDIRECT MEASUREMENT OF THE FILL LEVEL OF A PRESSURIZED LIQUID IN A FLUID CONTAINER AND METHOD

#13
20240344856
2024-10-17

FLOWMETER FOR TWO-PHASE FLUID

#14
20240337572
2024-10-10

Measuring Method and Measuring Assembly

#15
20240319611
2024-09-26

Lithography system and method of detecting fluid leakage in liquid storage tank of the same

#16
20240240553
2024-07-18

Indirect measurement system for identifying the position, density and pressure of an underground liquid or gaseous interface

#17
20240210231
2024-06-27

Method and Device for Determining the Fuel Volume in a Fuel Container

#18
20240167865
2024-05-23

LEVEL AND/OR DENSITY SENSOR DEVICE FOR LIQUID VESSELS

#19
20240127179
2024-04-18

System and method for determining volume of fluid in a tank

#20
20240060372
2024-02-22

Screen break detector

#21
20240044689
2024-02-08

PRESSURE-BASED SENSOR SYSTEM FOR PRECURSOR LEVEL MEASUREMENT AND METHOD THEREFOR

#22
20240019283
2024-01-18

Sensor Module

#23
20230392968
2023-12-07

PIT LEVEL SENSING MONITOR

#24
20230384142
2023-11-30

Sensing And Control For A Multiphase Measurement System With Separator

#25
20230384141
2023-11-30

SPECIFYING SYSTEM, SPECIFYING APPARATUS, AND SPECIFYING METHOD

#26
20230251121
2023-08-10

Contamination detection for optical pressure sensors

#27
20230221165
2023-07-13

System and methods for field monitoring of stationary assets

#28
20230194326
2023-06-22

SYSTEMS AND METHODS FOR DETECTING FILL-LEVELS IN CROP TRANSPORT RECEPTACLES

#29
20230160766
2023-05-25

Sliding discrete Fourier transform (DFT) bins for fuel quantity measurements

#30
20230110343
2023-04-13

LIQUID LEVEL SENSOR FOR LIQUID RECEPTACLE

#31
20230083890
2023-03-16

Pressure based volume sensor for liquid receptacle

#32
20230074219
2023-03-09

Sensor Module

#33
20230044547
2023-02-09

OPEN CHANNEL FLOW MONITORING APPARATUS

#34
20230010268
2023-01-12

Screen Break Detector

#35
20230009318
2023-01-12

Measuring Method and Measuring Assembly

#36
20220356801
2022-11-10

Fluid level monitoring system and method incorporating pressure sensor system having inflatable/collapsible bag

#37
20220349473
2022-11-03

DEPTH GAUGE SEAL

#38
20220325932
2022-10-13

Liquid level detector and air conditioning apparatus including the liquid level detector

#39
20220268796
2022-08-25

Method of Operating a Laboratory Instrument

#40
20220254564
2022-08-11

METHOD FOR MEASURING A QUANTITY OF LIQUID IN A LIQUID-INSULATED ELECTRICAL COMPONENT, LIQUID-INSULATED ELECTRICAL COMPONENT AND RAILROAD VEHICLE HAVING THE SAME

#41
20220250330
2022-08-11

METHOD AND SYSTEM FOR MONITORING AMOUNT OF SUPPLY MATERIAL IN ADDITIVE MANUFACTURING

#42
20220167069
2022-05-26

AUTOMATED ENVIRONMENT MONITORING SYSTEMS AND METHODS

#43
20220090953
2022-03-24

Fuel level measurement system for a machine

#44
20220082415
2022-03-17

MASS FLOW CONTROLLER

#45
20220057251
2022-02-24

Method for determining a remaining empty volume, method for on-site calibration of a fill level measuring device, and on-site calibration module

#46
20220036294
2022-02-03

System and method for determining volume of fluid in a tank

#47
20210331656
2021-10-28

Method for controlling a hydrodynamic machine and hydrodynamic machine

#48
20210310848
2021-10-07

CLOSED TANK FILL LEVEL SENSOR

#49
20210255021
2021-08-19

System and methods for field monitoring of stationary assets

#50
20210205510
2021-07-08

Baby bottle with milk pump

#51
20210156374
2021-05-27

OIL DETECTING DEVICE FOR COMPRESSOR AND COMPRESSOR INCLUDING OIL DETECTING DEVICE

#52
20210109250
2021-04-15

Devices and methods for measuring temperature, oxidation reduction potential, and water-level within a subsurface formation

#53
20210072129
2021-03-11

Method for determining a measurement error caused by a filling error

#54
20210018416
2021-01-21

Flowmeter phase fraction and concentration measurement adjustment method and apparatus

#55
20200398312
2020-12-24

Screen break detector

#56
20200386600
2020-12-10

Pressure based volume sensor for liquid receptacle

#57
20200376952
2020-12-03

Tank comprising a pressure sensor and another sensor

#58
20200352818
2020-11-12

SYSTEM AND METHOD FOR DETERMINING A FILL STATUS OF A CANISTER OF FLUID IN A REDUCED PRESSURE TREATMENT SYSTEM

#59
20200347719
2020-11-05

Fluid level monitoring system and method incorporating pressure sensor system having inflatable/collapsible bag

#60
20200319046
2020-10-08

Pressure sensor including increased processing precision

#61
20200240900
2020-07-30

Apparatus for determining identity and/or quantity of a fuel

#62
20200208781
2020-07-02

Method for measuring fluid level in liquid hydrogen tank and liquid hydrogen storage system

#63
20200103299
2020-04-02

Pressure transducer assembly with atmospheric reference

#64
20200080883
2020-03-12

Level indicator

#65
20190352852
2019-11-21

Apparatus for measuring the dewatering of a paper machine at different points of the wet end and a method for implementing it

#66
20190345673
2019-11-14

APPARATUS FOR MEASURING THE DEWATERING OF A PAPER MACHINE AT DIFFERENT POINTS OF THE WET END AND A METHOD FOR IMPLEMENTING IT

#67
20190328945
2019-10-31

Liquid level sensor for liquid receptacle

#68
20190316950
2019-10-17

Apparatus and method for measuring level

#69
20190273275
2019-09-05

Systems and methods for forming a liquid mixture having a predetermined mix ratio and reforming systems, reforming methods, fuel cell systems, and fuel cell methods that utilize the liquid mixture

#70
20190255637
2019-08-22

Electric discharge machine

#71
20190224425
2019-07-25

Metering system for medication delivery

#72
20190186975
2019-06-20

System and methods for field monitoring of stationary assets

#73
20190185806
2019-06-20

Level and/or density sensor device for liquid vessels

#74
20190178698
2019-06-13

WIRELESS REMOTE SENSING OF CHANGES IN FLUID FILLED CONTAINERS

#75
20190151516
2019-05-23

System and method for locating fluid leaks at a drape of a reduced pressure delivery system

#76
20190120682
2019-04-25

Laboratory automation system including improved processing of a laboratory sample by optical and tip position sensing

#77
20190100444
2019-04-04

Fluid metering system

#78
20190086252
2019-03-21

Device for sensing the pressure of a medium

#79
20190063978
2019-02-28

Water level monitoring for multiple water tanks of sewer cleaning vehicle

#80
20190056257
2019-02-21

METHOD FOR DETERMINING DENSITY OF A MEDIUM IN A TANK OF A HYBRID TANK MEASUREMENT SYSTEM

#81
20190049280
2019-02-14

Systems and methods for determining a fuel level measurement of a fuel tank using optical sensors

#82
20190017858
2019-01-17

Method of estimating gas emission amount

#83
20190011305
2019-01-10

System for determining a filling level in a fuel tank

#84
20190001045
2019-01-03

Extracorporeal circulation management device with blood level detection in a reservoir without a sensor

#85
20180356271
2018-12-13

Method and apparatus for detecting the liquid level in a liquid reservoir

#86
20180345308
2018-12-06

Pressure-based method and system for measuring the density and height of a fluidized bed

#87
20180340812
2018-11-29

System for and a method of monitoring water drainage

#88
20180319587
2018-11-08

Cap for refillable tote

#89
20180299315
2018-10-18

Liquid measurement system for a tank

#90
20180299314
2018-10-18

Integrated sensor unit for fuel gauging

#91
20180283924
2018-10-04

Liquid level monitoring system

#92
20180264491
2018-09-20

FLUID DISPENSING SYSTEM AND METHOD

#93
20180180460
2018-06-28

Sensor for remote measurement of fluid depth in environmental monitoring

#94
20180172571
2018-06-21

DETERMINING FLUID DENSITY WITHIN A TANK

#95
20180168916
2018-06-21

Reduced pressure treatment system having blockage clearing and dual-zone pressure protection capabilities

#96
20180164140
2018-06-14

Systems and methods for installation of sensors for fuel quantity indicating systems

#97
20180064601
2018-03-08

System and method for determining a fill status of a canister of fluid in a reduced pressure treatment system

#98
20180052029
2018-02-22

Systems and methods for determining a fuel level measurement of a fuel tank using optical sensor

#99
20180036760
2018-02-08

APPARATUS AND METHOD FOR THE DOSED DISPENSING OF A LIQUID

#100
20170370758
2017-12-28

FLUID-LEVEL MEASURING SENSOR

#101
20170356318
2017-12-14

DNOx dosing tester and method

#102
20170336240
2017-11-23

Universal device for monitoring and reporting fluid consumption and method using same

#103
20170307461
2017-10-26

Automatic pressure correction for level gauges in storage tanks

#104
20170303496
2017-10-26

Milk meter

#105
20170205233
2017-07-20

Method of designing container of liquid reflection inclination sensor, inclination sensor including the container, and method of producing inclination sensor including the container

#106
20170203059
2017-07-20

Device to meter fluid

#107
20170167045
2017-06-15

Bubble and foam solutions using a completely immersed air-free feedback flow control valve

#108
20170154301
2017-06-01

System and method for determining volume of fluid in a tank

#109
20170138976
2017-05-18

Systems and methods for detecting a liquid level

#110
20170138506
2017-05-18

Flow apparatus and monitoring system relating thereto

#111
20170131132
2017-05-11

METHOD OF DETERMINING A VOLUME OF LIQUID IN A RESERVOIR FACTORING IN INCLINATION OF THE RESERVOIR

#112
20170097254
2017-04-06

Closed Tank Fill Level Sensor

#113
20170089746
2017-03-30

Blood reservoir with fluid volume measurement based on pressure sensor

#114
20170082433
2017-03-23

Wearable ambient pressure gauge

#115
20170059385
2017-03-02

Recreational vehicle wastewater tank measurement system and method

#116
20170038238
2017-02-09

Methods and systems for direct fuel quantity measurement

#117
20170007748
2017-01-12

System and method for locating fluid leaks at a drape of a reduced pressure delivery system

#118
20160356699
2016-12-08

Apparatus for determining identity and/or quantity of a fuel

#119
20160354540
2016-12-08

Pressure based refill status monitor for implantable pumps

#120
20160310657
2016-10-27

Apparatus for extracorporeal blood treatment and a control method therefor

#121
20160308471
2016-10-20

Strain gauge pump control switch

#122
20160305811
2016-10-20

Fuel level meter for industrial vehicles

#123
20160256616
2016-09-08

Component module for a reduced pressure treatment system

#124
20160238426
2016-08-18

Level sender with sensors

#125
20160202103
2016-07-14

Probe for monitoring the surface level of a fluid in a vessel and a method of installing the probe in the vessel

#126
20160150771
2016-06-02

System and method for electronic fluid measurement

#127
20160084695
2016-03-24

System and method of monitoring oil level in transmission system of machine

#128
20160074891
2016-03-17

Pitch-based control for sprayers and sprayer operations

#129
20160069727
2016-03-10

Method for air-coupled water level meter system

#130
20160054164
2016-02-25

COMPENSATED FLUID LEVEL TRANSMITTER

#131
20160045648
2016-02-18

System and method for determining a fill status of a canister of fluid in a reduced pressure treatment system

#132
20160031394
2016-02-04

Thermoelectric powered wireless vehicle system sensor systems

#133
20160022932
2016-01-28

Method to deliver medication

#134
20150362352
2015-12-17

Chemical analyzer

#135
20150335835
2015-11-26

Metering system and method for aerosol delivery

#136
20150328416
2015-11-19

Device to meter fluid

#137
20150323371
2015-11-12

Apparatus and method for determining the depth of liquid in a drum

#138
20150316405
2015-11-05

Metering system and method for fluid delivery

#139
20150308879
2015-10-29

SYSTEMS AND METHODS FOR ASSESSING A CONDITION OF A VEHICLE REFRIGERATION SYSTEM

#140
20150276456
2015-10-01

Through wall installation of sensors in fuel tanks

#141
20150276455
2015-10-01

MEASUREMENT ARRANGEMENT AND DISHWASHER CONTAINING A MEASUREMENT ARRANGEMENT

#142
20150268111
2015-09-24

Process variable transmitter with process variable sensor carried by process gasket

#143
20150245974
2015-09-03

Component module for a reduced pressure treatment system

#144
20150218667
2015-08-06

Method and device for measuring levels of cast iron and slag in a blast furnace

#145
20150211913
2015-07-30

APPARATUS AND METHOD FOR DETERMINING THE DEPTH OF LIQUID IN A DRUM

#146
20150211912
2015-07-30

APPARATUS AND METHOD FOR DETERMINING THE DEPTH OF LIQUID IN A DRUM

#147
20150211911
2015-07-30

APPARATUS AND METHOD FOR DETERMINING THE DEPTH OF LIQUID IN A DRUM

#148
20150211910
2015-07-30

APPARATUS AND METHOD FOR DETERMINING THE DEPTH OF LIQUID IN A DRUM

#149
20150204743
2015-07-23

OPTICAL SENSOR AND METHOD FOR MEASURING THE PRESSURE OF A FLUID

#150
20150198475
2015-07-16

Rotary valve multi-tank indirect liquid level measurement system and method for wastewater tanks in a recreational vehicle

#151
20150192450
2015-07-09

Systems and methods for determining amount of liquid and gaseous fuel

#152
20150176188
2015-06-25

Level measuring device for a wall mounted drum type washing machine and method thereof

#153
20150143898
2015-05-28

FLUID-LEVEL MEASURING SENSOR

#154
20150120515
2015-04-30

System and method for determining volume of fluid in a tank

#155
20150120477
2015-04-30

Redundant data communication system for confirming a fuel event and method therefor

#156
20150114105
2015-04-30

Milk level measurement device and related measurement method

#157
20150100253
2015-04-09

Aircraft fluid gauging techniques using pressure measurements and optical sensors

#158
20150090645
2015-04-02

Fluid metering system

#159
20150082882
2015-03-26

SYSTEM FOR DETERMINING THE LEVEL OF A LIQUID IN A CONTAINER

#160
20150075267
2015-03-19

FUEL TANK PRESSURE SENSOR RATIONALITY TEST FOR A PHEV

#161
20150073363
2015-03-12

Reduced pressure treatment system having blockage clearing and dual-zone pressure protection capabilities

#162
20150052997
2015-02-26

Hydrostatic Interface Measuring Device

#163
20150033846
2015-02-05

Vehicle orientation device and method

#164
20140371696
2014-12-18

Component module for a reduced pressure treatment system

#165
20140358454
2014-12-04

Application-specific integrated circuit and measurement transmitter having such a circuit

#166
20140347178
2014-11-27

Wading vehicle water level display

#167
20140331990
2014-11-13

Arrangement for level measurement

#168
20140324288
2014-10-30

Wading depth estimation for a vehicle

#169
20140288793
2014-09-25

Wading vehicle advisory speed display

#170
20140260576
2014-09-18

Method and system to validate a fuel level indicator in a vehicle

#171
20140236106
2014-08-21

System and method for determining a fill status of a canister of fluid in a reduced pressure treatment system

#172
20140223992
2014-08-14

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

#173
20140196538
2014-07-17

Liquid pressure meter, liquid level meter, and warning system

#174
20140196537
2014-07-17

INTEGRATED MEASURING APPARATUS FOR MEASURING VAPOR PRESSURE AND LIQUID LEVEL OF LIQUID TANK

#175
20140196534
2014-07-17

Metering system and method for aerosol delivery

#176
20140163524
2014-06-12

Dual plunger based systems and method for use in determining a volume in a reservoir

#177
20140157890
2014-06-12

Method And Apparatus In A Medium Source Of A Fire-Fighting System

#178
20140156126
2014-06-05

Vehicle control system

#179
20140119950
2014-05-01

Fluid level sensor systems and methods

#180
20140085066
2014-03-27

Wading vehicle water level display

#181
20140083185
2014-03-27

Multi-tank indirect liquid-level measurement

#182
20140053645
2014-02-27

FUEL QUANTITY MEASUREMENT

#183
20140037464
2014-02-06

Strain gauge pump control switch

#184
20140033817
2014-02-06

Level measurement of process fluid using a remote seal

#185
20140017095
2014-01-16

Strain gauge pump control switch

#186
20130336090
2013-12-19

Ultrasonic wading detection for a vehicle

#187
20130325369
2013-12-05

Process variable transmitter system with analog communication

#188
20130310778
2013-11-21

System and method for locating fluid leaks at a drape of a reduced pressure delivery system

#189
20130307679
2013-11-21

Wading vehicle depth measurement apparatus

#190
20130145841
2013-06-13

Liquid level determination system

#191
20130145756
2013-06-13

System and method for determining accumulator fill

#192
20130123755
2013-05-16

System and method for determining a fill status of a canister of fluid in a reduced pressure treatment system

#193
20130098500
2013-04-25

Refilling apparatus with jet level sensor

#194
20130086982
2013-04-11

Ratiometric plunger assembly for volume sensing applications

#195
20130068044
2013-03-21

Method and apparatus for measuring liquid quantity in bulk containers

#196
20130014570
2013-01-17

Automatic seepage meter

#197
20130000741
2013-01-03

FLUID LEVEL SENSOR

#198
20120198928
2012-08-09

Method for registering the filling potential of a waste container of microplate washing devices

#199
20120116331
2012-05-10

Component module for a reduced pressure treatment system

#200
20120067133
2012-03-22

Pressure sensor configuration for pressurized tank

#201
20120053783
2012-03-01

Automated inspection of aircraft landing gear internal fluid levels

#202
20120035561
2012-02-09

System and method for locating fluid leaks at a drape of a reduced pressure delivery system

#203
20120018037
2012-01-26

Device for supplying the liquid material inside a filling container and method of controlling the liquid level inside the filling container for said liquid material supply device

#204
20110130642
2011-06-02

System and method for tracking healing progress of tissue

#205
20110112773
2011-05-12

MEASURING PROPERTIES OF STRATIFIED OR ANNULAR LIQUID FLOWS IN A GAS-LIQUID MIXTURE USING DIFFERENTIAL PRESSURE

#206
20110106031
2011-05-05

Component module for a reduced pressure treatment system

#207
20110100119
2011-05-05

Method and apparatus for measuring liquid quantity in bulk containers

#208
20110030839
2011-02-10

Apparatus and method for fuelling an aircraft tank system

#209
20110029260
2011-02-03

Metering system and method for aerosol delivery

#210
20100276556
2010-11-04

Hanging apparatus for fixing a medical device to a substantially horizontal or substantially vertical support structure

#211
20100268179
2010-10-21

Reduced pressure treatment system having blockage clearing and dual-zone pressure protection capabilities

#212
20100254854
2010-10-07

Chemical analyzer

#213
20100241371
2010-09-23

Method for the real-time determination of the filling level of a cryogenic tank

#214
20100238013
2010-09-23

Fuel level meter for industrial vehicles

#215
20100218601
2010-09-02

Multiphase-liquid level data logger

#216
20100161252
2010-06-24

System and method for measuring a level of a liquid in a container

#217
20100125246
2010-05-20

Pressure based refill status monitor for implantable pumps

#218
20100122575
2010-05-20

Fluid level indicator strip

#219
20100011850
2010-01-21

Method and apparatus for measuring the amount of fuel aboard a spacecraft

#220
20100000316
2010-01-07

System for manufacturing a modularly structured apparatus for determining filling level

#221
20090301585
2009-12-10

Gas meter of gas canister valve

#222
20090195573
2009-08-06

Liquid detection unit, and liquid container

#223
20090193169
2009-07-30

Interface adapter

#224
20090162211
2009-06-25

Strain gauge pump control switch

#225
20090119033
2009-05-07

System for detecting remaining quantity in liquid hydrogen tank

#226
20090090416
2009-04-09

Fluid level regulator

#227
20090082977
2009-03-26

Pumping installation controller

#228
20090056437
2009-03-05

Liquid Level Detecting Method and Liquid Level Detecting Device

#229
20090007652
2009-01-08

OPTICAL SENSOR FOR MEASURING DOWNHOLE INGRESS OF DEBRIS

#230
20090000671
2009-01-01

DISHWASHER WITH INTEGRATED LIQUID LEVEL DETECTOR

#231
20080295826
2008-12-04

Metering system and method for aerosol delivery

#232
20080228526
2008-09-18

System and method for managing history of patient and wound therapy treatment

#233
20080213874
2008-09-04

WEIGHT MEASUREMENTS OF LIQUIDS IN FLEXIBLE CONTAINERS

#234
20080183935
2008-07-31

Interface adapter

#235
20080142639
2008-06-19

Method for detecting complete draining of a propellant tank and for propellant management on board a satellite

#236
20080140336
2008-06-12

DIGITAL GAS METER

#237
20080126005
2008-05-29

Connection box

#238
20080125175
2008-05-29

Connection box

#239
20080083276
2008-04-10

Condensing chamber design

#240
20080077078
2008-03-27

Hanging apparatus for fixing a medical device to a substantially horizontal or substantially vertical support structure

#241
20080071235
2008-03-20

System and method for determining a fill status of a canister of fluid in a reduced pressure treatment system

#242
20080071234
2008-03-20

Reduced pressure treatment system having blockage clearing and dual-zone pressure protection capabilities

#243
20080071216
2008-03-20

Component module for a reduced pressure treatment system

#244
20080071214
2008-03-20

System and method for locating fluid leaks at a drape of a reduced pressure delivery system

#245
20080071162
2008-03-20

System and method for tracking healing progress of tissue

#246
20080053242
2008-03-06

Process device with density measurement

#247
20080006094
2008-01-10

Pressure transmitter with multiple reference pressure sensors

#248
20070272025
2007-11-29

FUEL TANK MODULE CONTROL SYSTEM

#249
20070251317
2007-11-01

System for determining fluid level

#250
20070251316
2007-11-01

Multiphase-liquid level data logger

#251
20070225934
2007-09-27

Measuring apparatus

#252
20070125170
2007-06-07

Fluid level regulator

#253
20070062521
2007-03-22

Opaque aerosol container capacity indicator

#254
20060266111
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