ClassID:

188419

G05D9/12 - CPC Classification

Classification description:

Level control, e.g. controlling quantity of material stored in vessel characterised by the use of electric means

Recent Application in this class:
#1
20260130560
2026-05-14

STATION FOR ROBOT CLEANER

#2
20260107880
2026-04-23

GRAIN TRUCK FILL DETECTION

#3
20260085509
2026-03-26

GROUND EMBEDDED IMAGING DEVICE

#4
20260064138
2026-03-05

LIQUID VOLUME CONTROL DEVICE AND CONTROL METHOD FOR LIQUID VOLUME USING THE SAME

#5
20260062306
2026-03-05

METHOD OF PROCESSING ALUM PROCESS RESIDUE

#6
20260034570
2026-02-05

METHODS AND SYSTEMS FOR IMPROVING WATER USAGE IN FOOD PROCESSING

#7
20260023399
2026-01-22

REAL-TIME ADVISORY SYSTEM AND METHOD FOR STEAM DISTRIBUTION NETWORK OPERATION

#8
20260010183
2026-01-08

METHODS FOR WHOLE FILLING PROCESS SUPERVISION OF SMART GAS AND INTERNET OF THINGS (IOT) SYSTEMS

#9
20250390120
2025-12-25

VALVE AND METHOD FOR OPERATING A VALVE

#10
20250328154
2025-10-23

WATER LEVEL DETECTION VIA PRESSURE SENSING DEVICE

#11
20250285885
2025-09-11

LIQUID STORAGE APPARATUS, SEMICONDUCTOR MANUFACTURING SYSTEM, AND LIQUID REPLENISHING METHOD

#12
20250284299
2025-09-11

MOVEABLE BODY CONTROL DEVICE AND STORAGE MEDIUM

#13
20250278103
2025-09-04

METHODS AND SYSTEMS FOR PRECISION DOSING OF FLUID SYSTEMS

#14
20250241246
2025-07-31

GRAIN CART UNLOADING SENSOR AND UNLOAD CONTROL SYSTEM AND ASSOCIATED DEVICES AND METHODS

#15
20250198415
2025-06-19

DETERMINING AND UTILIZING A DESIRED FREQUENCY FOR A MECHANICAL SHAKER FOR A SUMP PUMP SYSTEM

#16
20250198263
2025-06-19

WELL PUMP CONTROL SYSTEM AND METHOD

#17
20250172153
2025-05-29

Detecting and Utilizing a Rise Rate for Sump Pump System Control

#18
20250172152
2025-05-29

SYSTEMS AND METHODS FOR MANIPULATING CONTROL OF SUMP PUMPS TO EXTEND LIFESPANS OF SUMP PUMPS

#19
20250172151
2025-05-29

DETECTING AND UTILIZING WATER VIBRATIONS IN SUMP PUMP SYSTEM CONTROL

#20
20250146492
2025-05-08

SUMP PUMP SMART HOME INTEGRATION

#21
20250093194
2025-03-20

MEASURING LIQUID LEVELS USING AN INCLINOMETER

#22
20250076903
2025-03-06

Zero Emission Displacer-Based Liquid Level Control

#23
20250076902
2025-03-06

FUEL LEVEL CONTROL SYSTEM AND METHOD

#24
20250072687
2025-03-06

CONTROL METHOD AND APPARATUS FOR CLEANING ASSEMBLY, CLEANING ASSEMBLY, AND MEDIUM

#25
20250060766
2025-02-20

METHODS AND SYSTEMS FOR FILLING GAS SAFETY SUPERVISION BASED ON SMART GAS INTERNET OF THINGS (IOT)

#26
20250052488
2025-02-13

HOME APPLIANCES INCLUDING LIGHT SENSOR

#27
20250004487
2025-01-02

LEVEL CONTROLLER

#28
20240416411
2024-12-19

CONTINUOUS CASTING PLANT AND CORRESPONDING REGULATION METHOD

#29
20240384724
2024-11-21

Adaptive Learning System for Improving Sump Pump Control

#30
20240360561
2024-10-31

CONTROL OF LIQUID DELIVERY IN AUTO-REFILL SYSTEMS

#31
20240321559
2024-09-26

PLASMA PROCESSING APPARATUS

#32
20240295888
2024-09-05

REMOTELY PROGRAMMABLE SENSING AND CONTROL UNIT FOR LIQUID TEMPERATURE AND LEVEL

#33
20240255973
2024-08-01

WATER LEVEL MANAGEMENT SYSTEM

#34
20240240725
2024-07-18

METHOD FOR PREDICTING, REGULATING AND CONTROLLING WEAR CHARACTERISTIC OF FLOW CHANNEL IN VALVE

#35
20240231399
2024-07-11

System and Related Methods for Automated Fluid Supply

#36
20240224871
2024-07-11

GRAIN TRUCK FILL DETECTION

#37
20240184315
2024-06-06

WATER LEVEL DETECTION VIA PRESSURE SENSING DEVICE

#38
20240176370
2024-05-30

FLOW CONTROL DEVICE

#39
20240157004
2024-05-16

ANTI-BIOFOULING WATER IN FUEL SENSOR, ANTI-BIOFOULING WATER SUMP AND RESERVOIR AND METHOD OF RETROFITTING WATER SUMPS AND RESERVOIRS TO INCORPORATE ANTI-BIOFOULING SYSTEM

#40
20240151251
2024-05-09

Solar Powered Air Regulated Controller

#41
20240134399
2024-04-25

System and Related Methods for Automated Fluid Supply

#42
20240130290
2024-04-25

GRAIN TRUCK FILL DETECTION

#43
20240128101
2024-04-18

SUBSTRATE PROCESSING APPARATUS AND SUBSTRATE PROCESSING METHOD

#44
20240118717
2024-04-11

SYSTEM AND METHOD FOR DISPENSER MANAGEMENT

#45
20240090164
2024-03-14

LIQUID LEVEL CONTROLLING APPARATUS

#46
20240088471
2024-03-14

BATTERY COOLING DEVICE

#47
20240077891
2024-03-07

LIQUID LEVEL CONTROLLING APPARATUS

#48
20240017306
2024-01-18

METHODS AND SYSTEMS FOR IMPROVING WATER USAGE IN FOOD PROCESSING

#49
20230380358
2023-11-30

Apparatus for cultivating plants

#50
20230376051
2023-11-23

METHOD AND APPARATUS FOR A WELL-BASED GROUNDWATER DELIVERY SYSTEM

#51
20230357651
2023-11-09

Process control systems and methods for simultaneous crude oil dehydration, desalting, sweetening, and stabilization

#52
20230341877
2023-10-26

Valve and Method for Operating a Valve

#53
20230312328
2023-10-05

Mechanism for dispensing fluids with compressed air

#54
20230311154
2023-10-05

Glue dispensing system and glue supplying method thereof

#55
20230304844
2023-09-28

Tank fill control apparatus and method

#56
20230251633
2023-08-10

TOP OF FLUID DETECTION SYSTEM

#57
20230250660
2023-08-10

Autonomous dispensing device

#58
20230223288
2023-07-13

Flow control equipment and automatic refilling system

#59
20230213749
2023-07-06

FLUID IMMERSION CONTROL FOR INVERTED MICROSCOPY

#60
20230198234
2023-06-22

Fluid injection system with smart injection and receiver tanks

#61
20230173404
2023-06-08

Apparatus for Collection and Removal of Condensate Liquid From a Process Vessel

#62
20230170502
2023-06-01

PURGE SYSTEMS AND METHODS IN A FUEL CELL SYSTEM

#63
20230109559
2023-04-06

CONTROL SYSTEM FOR A LIQUID FILLING LEVEL AND MICROSCOPE STAGE INCLUDING SUCH A SYSTEM

#64
20230099328
2023-03-30

Method for Operating a Filling System and Filling System

#65
20230098068
2023-03-30

WELL PUMP CONTROL SYSTEM AND METHOD

#66
20230079260
2023-03-16

Non-vented, semi-automated water drain valve system

#67
20230074636
2023-03-09

APPARATUS AND METHOD FOR ESTIMATING AN AMOUNT OF CONDENSED WATER IN AN ANODE OF A FUEL CELL SYSTEM AND METHOD OF CONTROLLING A DRAIN VALVE USING SAME

#68
20220397920
2022-12-15

Methods and systems for precision dosing of fluid systems

#69
20220380688
2022-12-01

Process control systems and methods for simultaneous crude oil dehydration, desalting, sweetening, and stabilization

#70
20220348412
2022-11-03

Electronically controlled viscous coupler for combine harvester

#71
20220341143
2022-10-27

WATER-FLOW SENSING DEVICES AND METHODS OF SENSING AND STOPPING AN EXCESSIVE FLOW CONDITION

#72
20220312678
2022-10-06

Control system for controlling filling based on load weight

#73
20220290775
2022-09-15

Overfill prevention valve

#74
20220282379
2022-09-08

Control of liquid delivery in auto-refill systems

#75
20220268615
2022-08-25

Processes and device for automatically controlling the level of packing fluid for drum type volumetric gas flow meters

#76
20220267976
2022-08-25

Multi pulley control gate

#77
20220251818
2022-08-11

Detection and monitoring system for the management of combined sewer systems

#78
20220236750
2022-07-28

Dehumidifier

#79
20220212816
2022-07-07

Device and method for filling an oil reservoir of an aircraft engine

#80
20220195657
2022-06-23

Handheld appliance

#81
20220179435
2022-06-09

Control of a filling process

#82
20220178631
2022-06-09

Cooling system and automatic coolant-injection method for cooling system

#83
20220137650
2022-05-05

Automated tank systems and methods for use in oil and gas extraction operation

#84
20220040611
2022-02-10

Self sufficient suction side automatic drain valve

#85
20220026935
2022-01-27

Water level detection via pressure sensing device

#86
20220007599
2022-01-13

Apparatus for cultivating plants

#87
20210349483
2021-11-11

SYSTEM AND PROCESS FOR LOW FLOW WATER MONITORING IN AGRICULTURE

#88
20210318207
2021-10-14

System for abnormal condition detection using nearest neighbor

#89
20210310695
2021-10-07

HEATER TANK FOR HEAT PUMP SYSTEM AND METHOD FOR CONTROLLING HEATER TANK

#90
20210300175
2021-09-30

Fuel supply device

#91
20210286383
2021-09-16

LIQUID HANDLING SYSTEM MONITORING SYSTEMS AND METHODS

#92
20210267179
2021-09-02

Apparatus and method for fluid level measurement and control

#93
20210262450
2021-08-26

Seal for a wind turbine nacelle

#94
20210244259
2021-08-12

System and method for hospitality water cleansing and monitoring

#95
20210240209
2021-08-05

INLINE FLOW CONTROL SYSTEM WITH PARALLEL FLOW SOLENOID VALVES

#96
20210239960
2021-08-05

Fluid immersion control for inverted microscopy

#97
20210207988
2021-07-08

Tank fill control apparatus and method

#98
20210096584
2021-04-01

Auto drain valve

#99
20210034081
2021-02-04

Fluid top-off detection and control system

#100
20210017013
2021-01-21

Electric fuel shutoff device

#101
20200378230
2020-12-03

Automated system for monitoring and controlling water transfer during hydraulic fracturing

#102
20200326732
2020-10-15

VEHICLE FUEL LEVEL DISPLAY SYSTEMS AND METHODS

#103
20200319659
2020-10-08

Device and method for feeding an immersion medium

#104
20200295545
2020-09-17

FLUID INJECTION SYSTEM WITH SMART INJECTION AND RECEIVER TANKS

#105
20200294694
2020-09-17

Fluid injection system with smart injection and receiver tanks

#106
20200269159
2020-08-27

Froth coalescing

#107
20200238290
2020-07-30

Apparatus for multi-specimen test instrument

#108
20200236879
2020-07-30

SYSTEMS AND METHODS FOR NORMALIZING TANK PRESSURE

#109
20200224402
2020-07-16

Detection and monitoring system for the management of combined sewer systems

#110
20200221653
2020-07-16

Irrigation system

#111
20200201366
2020-06-25

Fluid flow control based on a liquid level in a container

#112
20200157920
2020-05-21

ACTIVE FLUID CONTAINMENT FOR MUD TANKS

#113
20200154657
2020-05-21

Plant cultivating apparatus

#114
20200132068
2020-04-30

Sump pump system and control methodology therefor

#115
20200110428
2020-04-09

Waste oil pump control and tank level monitor

#116
20200088561
2020-03-19

Liquid level meter, vaporizer equipped with the same, and liquid level detection method

#117
20200048108
2020-02-13

Top fill reservoir system for water purification system

#118
20200033898
2020-01-30

Water level detection via pressure sensing device

#119
20200011725
2020-01-09

Fluid characteristic sensor, sensor system, and method

#120
20190293309
2019-09-26

Humidifier

#121
20190285194
2019-09-19

Overfill prevention valve

#122
20190277586
2019-09-12

Cooling tower adjusting method and system

#123
20190276384
2019-09-12

Automated production line for preparing cannabidiol extract

#124
20190276303
2019-09-12

Onboard delivery system for fuel additives

#125
20190271580
2019-09-05

Tank fill control apparatus and method

#126
20190267260
2019-08-29

Substrate processing apparatus, processing liquid draining method, processing liquid replacing method, and substrate processing method

#127
20190249503
2019-08-15

WATER TRANSFER MONITORING SYSTEM AND METHOD OF USE

#128
20190235535
2019-08-01

Pre-metering system for feeding different types of seed into a seed meter

#129
20190235534
2019-08-01

Pre-metering system for feeding different types of seed into a seed meter

#130
20190234788
2019-08-01

Submersible level sensing with transducer and jacketed cable

#131
20190178553
2019-06-13

System and method of controlling ice maker

#132
20190163208
2019-05-30

Multipurpose float switch mounting bracket

#133
20190159655
2019-05-30

System and method for hospitality water cleansing and monitoring

#134
20190146525
2019-05-16

Mobile distribution station with guided wave radar fuel level sensors

#135
20190120234
2019-04-25

Water pumping control device and system

#136
20190099941
2019-04-04

Selective sintering additive manufacturing method

#137
20190091100
2019-03-28

Irrigation System

#138
20190086940
2019-03-21

Smart water dispenser and control method thereof

#139
20190085840
2019-03-21

Autonomous submersible pump

#140
20190083924
2019-03-21

AMOUNT OF SEAWATER CONTROL DEVICE FOR SCRUBBER, AMOUNT OF SEAWATER CONTROL METHOD FOR SCRUBBER, AND AMOUNT OF ALKALI CONTROL DEVICE AND AMOUNT OF ALKALI CONTROL METHOD

#141
20190060779
2019-02-28

Systems and methods for enhancing amine agent recovery with a reclaimer

#142
20190018433
2019-01-17

BATHTUB WITH WATER USE INDICATOR AND LIMITER

#143
20190016586
2019-01-17

TRANSMISSION FLUID NOZZLE

#144
20190003871
2019-01-03

Pressure Sensor System

#145
20180375124
2018-12-27

Apparatus and method for discharging condensate of a fuel cell stack

#146
20180364743
2018-12-20

Monitoring system for monitoring a water level in a plumbing element, and a plumbing element

#147
20180356350
2018-12-13

Damaged applicator identifier system for additive manufacturing system

#148
20180356221
2018-12-13

Water level measurement system and water level control system, and water level measurement method and water level control method using such systems

#149
20180340539
2018-11-29

Liquid sensing switch

#150
20180321696
2018-11-08

Replacement of fluid in freshwater networks

#151
20180321071
2018-11-08

Liquid level sensing and diagnostic determination

#152
20180299909
2018-10-18

Adaptive water level controls for water empty or fill applications

#153
20180292437
2018-10-11

Filtered dielectric sensor apparatus

#154
20180259979
2018-09-13

Pre-metering system for feeding different types of seed into a seed meter

#155
20180252083
2018-09-06

Automated system for monitoring and controlling water transfer during hydraulic fracturing

#156
20180249671
2018-09-06

Modular apparatus for cleaning pet toilet device

#157
20180245274
2018-08-30

Self cleaning sump cover

#158
20180238772
2018-08-23

System for abnormal condition detection using nearest neighbor

#159
20180237708
2018-08-23

Blockage-free water overflow from the water jacket of a quencher into the quenching chamber

#160
20180215352
2018-08-02

Method for recovering rainwater at the surface of a vehicle, recovery circuit and vehicle equipped with such a circuit

#161
20180180220
2018-06-28

ASSEMBLY FOR A CONDENSATE EXTRACTOR FOR EXTRACTING A COMPRESSED GAS CONDENSATE

#162
20180129229
2018-05-10

Replacement of fluid in freshwater networks

#163
20180125018
2018-05-10

Perforated subirrigation/drainage pipe and sealed fully automatically irrigated rainwater-recycling comprehensive planter

#164
20180119031
2018-05-03

OIL AND WATER EMULSION DETECTION AND CONTROL FOR DESALTERS

#165
20180111718
2018-04-26

Tank assembly with at least one compressible member

#166
20180101184
2018-04-12

Mobile distribution station with guided wave radar fuel level sensors

#167
20180101183
2018-04-12

Mobile distribution station with guided wave radar fuel level sensors

#168
20180100623
2018-04-12

Pressure sewer control system and method

#169
20180087259
2018-03-29

Detection and monitoring system for the management of combined sewer systems

#170
20180066639
2018-03-08

LIQUID COLOR CLOSED LOOP REFILL METHOD AND APPARATUS

#171
20180041122
2018-02-08

Insulation detecting circuit, power converting device and insulation impedance value detecting method

#172
20180027777
2018-02-01

WATER CONSUMPTION SENSORS AND SYSTEMS FOR EQUINE APPLICATIONS

#173
20180011498
2018-01-11

Liquid level control module and apparatus comprising same

#174
20180010762
2018-01-11

Display panel

#175
20170350745
2017-12-07

Liquid level detection device, method of detecting liquid level, high temperature plasma raw material supply device and extreme ultra violet light source device

#176
20170350107
2017-12-07

Overflow system for a fluid container

#177
20170344033
2017-11-30

Liquid handling system monitoring systems and methods

#178
20170235318
2017-08-17

Method of monitoring a fluid level within a fluid volume

#179
20170177010
2017-06-22

Water storage tank and method for controlling full water level thereof

#180
20170174116
2017-06-22

Bottom loading valves, tank management systems incorporating the same, and methods for managing tanks

#181
20170147013
2017-05-25

Automatic pool and spa water leveler on a non-static line

#182
20170139429
2017-05-18

Systems for handling fluid for application to agricultural fields

#183
20170121235
2017-05-04

CONTROLLING SYSTEM AND METHOD FOR MAKING COMPOST

#184
20170084937
2017-03-23

APPARATUS AND METHOD FOR DISCHARGING CONDENSATE OF A FUEL CELL STACK

#185
20170075363
2017-03-16

Liquid level sensing system

#186
20170074712
2017-03-16

Chemical liquid tank

#187
20170068259
2017-03-09

Agricultural feed mixer with volumetric responsive automatic transmission

#188
20170067556
2017-03-09

Agricultural feed mixer with ingredient sensing automatic transmission control

#189
20170065949
2017-03-09

Agricultural feed mixer transmission torque sensor assembly

#190
20170065948
2017-03-09

Agricultural feed mixer with torque sensing automatic transmission

#191
20170055467
2017-03-02

Local and integrated remote control system and method for retrofitting existing electric center irrigation pivots

#192
20160376107
2016-12-29

Operating granular material conveyors near capacity

#193
20160349766
2016-12-01

Ecology fuel return systems

#194
20160347466
2016-12-01

Piezoelectrically-controlled fuel delivery system

#195
20160342161
2016-11-24

Tank Filling, Monitoring and Control System

#196
20160313745
2016-10-27

Grain pipe valve assembly

#197
20160291609
2016-10-06

Tank fluid level management

#198
20160290105
2016-10-06

Active fluid containment for mud tanks

#199
20160187890
2016-06-30

Smart drain and method of control

#200
20160187173
2016-06-30

Oil level detecting apparatus and control method thereof, oil flow detecting apparatus and control method thereof, method for control oil return using oil level and oil flow

#201
20160177695
2016-06-23

Method and system for adjusting the position of an oil-water interface layer

#202
20160174522
2016-06-23

Automatic water supply system for animals

#203
20160161143
2016-06-09

System and method for control of a fluid heating apparatus

#204
20160154410
2016-06-02

Monitoring system and method

#205
20160145739
2016-05-26

LIQUID-METAL ORGANIC COMPOUND SUPPLY SYSTEM

#206
20160109887
2016-04-21

Oil handling and monitoring device and system

#207
20160089510
2016-03-31

DEVICE FOR CONTROLLING WATER LEVEL

#208
20160069601
2016-03-10

Ice maker

#209
20160062372
2016-03-03

Liquid feeding device and substrate treating device

#210
20160054169
2016-02-25

Fluid tank

#211
20160052719
2016-02-25

FILL SYSTEM AND METHOD USING STORAGE CONTAINER WITH AGITATOR PLATE FOR ADHESIVE SOLIDS

#212
20160048137
2016-02-18

Automatic fill control technique

#213
20160033977
2016-02-04

Plasma processing devices having multi-port valve assemblies

#214
20160033085
2016-02-04

COMPRESSED GAS STORAGE UNIT AND FILL METHODS

#215
20160011602
2016-01-14

System and method for control and optimization of PCP pumped well

#216
20160010641
2016-01-14

System and method for control and optimization of PCP pumped well operating parameters

#217
20160008742
2016-01-14

Allocation measurement systems and methods

#218
20160007548
2016-01-14

Ebb and flow watering system

#219
20160004259
2016-01-07

Apparatus and method for self-regulating fluid chemical delivery

#220
20150328599
2015-11-19

Modular electronic carbonator fluid level control mechanism

#221
20150300521
2015-10-22

Automatic water discharge device of pneumatically operated apparatus

#222
20150277448
2015-10-01

Water pump control apparatus

#223
20150261227
2015-09-17

Tank monitor control device

#224
20150233369
2015-08-20

Method and apparatus for closed loop automatic refill of liquid color

#225
20150227145
2015-08-13

Automatic pool and spa water leveler on a non-static line

#226
20150227142
2015-08-13

Reservoir control systems and methods

#227
20150209720
2015-07-30

Amount of seawater control device for scrubber, amount of seawater control method for scrubber, and amount of alkali control device and amount of alkali control method

#228
20150205305
2015-07-23

Evaporative cycles of concentration control

#229
20150204554
2015-07-23

Staged dry out control for evaporative media systems

#230
20150204553
2015-07-23

Staging control for an evaporative media system

#231
20150204552
2015-07-23

Multiple pump evaporative media system

#232
20150192933
2015-07-09

Automatic smart watering apparatus

#233
20150168957
2015-06-18

CONTROL PROCESS TO SAVE ELECTRICAL ENERGY CONSUMPTION OF A PUMP EQUIPMENT

#234
20150144818
2015-05-28

Test and monitoring system for a sump pump installation having a self-protecting valve assembly for admitting water to the sump container

#235
20150129053
2015-05-14

Automatic Drainage Device With A Level Controller

#236
20150114892
2015-04-30

Device for decanting a supernatant received in a clarifier

#237
20150107676
2015-04-23

System and Method for Automatically Actuating A Valve

#238
20150090342
2015-04-02

Liquid level control loop optimizer

#239
20150034176
2015-02-05

PIECE OF CONTINUOUS OPERATING CYCLE SLUDGE TRANSFER EQUIPMENT

#240
20140360593
2014-12-11

Well containment device

#241
20140348588
2014-11-27

Canal control system

#242
20140320054
2014-10-30

Electrical outlet with draining mechanism

#243
20140303792
2014-10-09

System and method for deriving storage tank operation plan

#244
20140303791
2014-10-09

SYSTEM AND METHOD FOR DETECTING AIR IN A FLUID

#245
20140285942
2014-09-25

Electronic control device

#246
20140261773
2014-09-18

Automatic drain for fuel processor

#247
20140202559
2014-07-24

Fill level monitoring

#248
20140195067
2014-07-10

Method and system for use in controlling a pressure vessel

#249
20140158225
2014-06-12

Condensate Liquid Level Control System

#250
20140150900
2014-06-05

AUTOMATIC TOP-OFF FOR DEEP FAT FRYERS

#251
20140130898
2014-05-15

Condensate discharge device for compressed gas systems

#252
20140105785
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Biological safety cabinet with a falling-film evaporator

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Facilitating fluid level sensing

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Overfill prevention valve

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Apparatus for regulating fluid flow from a reservoir

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Device for reliable filling level control in a quenching chamber that is arranged downstream of entrained-flow gasification and has inert-gas flushing of the pressure-recording measuring location

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Method of and system for evacuating fluid in a sea vessel

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Electric motor

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Adjustable weir for hydroelectric dam installations

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Time-based multi-mode pump control

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Waste water vessels with multiple valved chambers, and associated systems and methods

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Wet electric motor and pumping set

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Pump unit

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Pump unit

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Pump unit

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SWIMMING POOL AUTOMATIC WATER LEVELING DEVICE

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Multi-priority pump control unit

#268
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Fluid level control system and method of using same

#269
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Method for setting the fill level when filling a cavity system and a vehicle seat system

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System and method of automatic tank refill

#271
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Modular electronic carbonator fluid level control mechanism

#272
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Refilling apparatus with jet level sensor

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Maintaining a water level in a humidification component

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Computer implemented method for controlling ebb flow watering systems

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Fluid flow control valve with upper bleed port and system

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Determination and control of wellbore fluid level, output flow, and desired pump operating speed, using a control system for a centrifugal pump disposed within the wellbore

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WATER TREATMENT SYSTEMS AND METHODS

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Switch control system

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Cyclically liquid feeding apparatus

#280
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Determination and control of wellbore fluid level, output flow, and desired pump operating speed, using a control system for a centrifugal pump disposed within the wellbore

#281
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Centrifugal pump with coaxial inlet and outlet and liquid level detector

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Apparatus and method for product movement planning to support safety monitoring in inventory management systems

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System for measurement of molten sulfur level in receptacles

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handheld controller for filling wine barrels

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Pump control unit

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Electric power leveling controller

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Method and apparatus for waste water level indication

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Determination and control of wellbore fluid level, output flow, and desired pump operating speed, using a control system for a centrifugal pump disposed within the wellbore

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SUMP MONITORING METHOD AND APPARATUS

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Level sensors for metering system container

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Fluid purification level control apparatuses and methods

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Digital multi range liquid level detector

#294
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Method of and apparatus for controlling the height of a column of material in a vessel upstream of a pump

#295
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Variable capacity fuel tank

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Monitoring and control system for a gas well dewatering pump

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ADJUSTABLE WEIR FOR HYDROELECTRIC DAM INSTALLATIONS

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Determination and control of wellbore fluid level, output flow, and desired pump operating speed, using a control system for a centrifugal pump disposed within the wellbore

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Doctor blade supply system with intelligent viscosity logic

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Doctor blade supply system with intelligent viscosity logic