ClassID:

158583

F24H1/202 - CPC Classification

Classification description:

Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters; Water-storage heaters with immersed heating elements, e.g. electric elements or furnace tubes using electric energy supply with resistances

Recent Application in this class:
#1
20260110458
2026-04-23

WATER HEATER ENABLED TO RESPOND TO GRID CONDITIONS

#2
20260029160
2026-01-29

SOLAR HEATING SYSTEM FOR TANKED ASPHALT

#3
20260013007
2026-01-08

OHMIC HEATER WITH MULTIPLE OPERATING STATES

#4
20250341340
2025-11-06

DEVICE FOR TRANSFERRING AN ACTIVE SUBSTANCE TO A GAS PHASE

#5
20250244052
2025-07-31

Self-Regulating Water Boiler

#6
20250164120
2025-05-22

HYBRID WATER HEATER SYSTEM

#7
20250003637
2025-01-02

METHOD AND SYSTEM FOR IMPLEMENTING ADVANCED OPERATING MODES IN ELECTRIC RESISTANCE WATER HEATERS AND HEAT PUMP WATER HEATERS

#8
20240377101
2024-11-14

ELECTRIC WATER HEATER

#9
20240328668
2024-10-03

CONVECTION-CONTROLLED STORAGE WATER HEATING

#10
20240328636
2024-10-03

ELECTRIC BOILER DEVICE BASED ON UTILIZATION OF RESIDUAL ENERGY OF ELEVATOR, AND CONTROL METHOD

#11
20240280293
2024-08-22

WATER HEATERS WITH REAL-TIME HOT WATER SUPPLY DETERMINATION

#12
20240183580
2024-06-06

Electronic Control System for Electric Water Heater

#13
20240151432
2024-05-09

HOT WATER HEATING DEVICE

#14
20240125512
2024-04-18

CERAMIC HEATER AND LIQUID HEATING DEVICE

#15
20240053056
2024-02-15

HOT WATER GENERATION APPARATUS, WATER PURIFIER COMPRISING SAME, AND METHOD FOR CONTROLLING HOT WATER GENERATION APPARATUS

#16
20240019174
2024-01-18

ELECTRONIC SWITCH SYSTEM FOR A WATER HEATER

#17
20230408148
2023-12-21

Water Heating System

#18
20230288098
2023-09-14

KETTLE APPARATUS AND METHOD THEREOF

#19
20230160604
2023-05-25

PUMPLESS TOP-UP WATER HEATING TANK

#20
20230112157
2023-04-13

Method and system for implementing advanced operating modes in electric resistance water heaters and heat pump water heaters

#21
20230066658
2023-03-02

Tank of liquid able to be heated

#22
20230036844
2023-02-02

Boiler apparatus and method thereof

#23
20230024550
2023-01-26

Electric water heater having internal heat concentrator

#24
20230007738
2023-01-05

ELECTRIC HEATER FOR HEATING A SUBSTANCE IN A MOTOR VEHICLE

#25
20230003435
2023-01-05

METHOD OF DEFROSTING A HEAT PUMP DEVICE AS WELL AS A HEAT PUMP DEVICE

#26
20220404065
2022-12-22

Device for producing hot liquid

#27
20220381450
2022-12-01

Water heaters with real-time hot water supply determination

#28
20220341600
2022-10-27

Heat pump water heater systems and methods thereto

#29
20220325916
2022-10-13

Double-circuit electric boiler (variants)

#30
20220304502
2022-09-29

BEVERAGE MACHINE HEATED WATER SOURCE WITH HORIZONTAL HEATING COIL

#31
20220275969
2022-09-01

HEAT STORAGE WATER DISPENSER SYSTEM

#32
20220214077
2022-07-07

WATER HEATER INLET FITTING, FLOW SENSOR, SHUT OFF VALVE AND DIFFUSER

#33
20220196286
2022-06-23

Retrofit cover plate and assembly to adapt alternative energy supplies to electric water heaters

#34
20220196285
2022-06-23

STORAGE ELECTRIC WATER HEATER

#35
20220163234
2022-05-26

Water heating system with inclined heating element

#36
20220163221
2022-05-26

Hybrid heat pump water heater systems and methods involving electric current, water temperature, and ambient temperature

#37
20220136734
2022-05-05

TERMINAL DEVICE FOR A TUBULAR HEATING DEVICE WITH INTEGRATED FUSE

#38
20220011017
2022-01-13

Field conversion electric water heater

#39
20210333016
2021-10-28

Method and system for securing temperature sensors on the outer surface of a tank of an electric water heater

#40
20210262696
2021-08-26

ELECTRIC HEATER FOR TANK

#41
20210262676
2021-08-26

Hot water tank

#42
20210239328
2021-08-05

Water heater and control method therefor

#43
20210231348
2021-07-29

Solar water heating system

#44
20210215080
2021-07-15

HEATING DEVICE FOR INSTALLATION IN A VEHICLE TANK FOR REDUCING AGENT AND VEHICLE TANK

#45
20210199344
2021-07-01

Electronic unlock feature

#46
20210153302
2021-05-20

Ohmic Heater With Multiple Operating States

#47
20210063052
2021-03-04

Cathodic corrosion and dry fire protection apparatus and methods for electric water heaters

#48
20210033307
2021-02-04

Safety power connecting system and method for electric water heaters

#49
20200393202
2020-12-17

Hot water storage tank and a diffuser

#50
20200378651
2020-12-03

System and method for heating water

#51
20200355373
2020-11-12

Heating devices to prevent bacteria proliferation in the lowermost region of a water holding tank of an electric water heater

#52
20200340709
2020-10-29

FLUID HEATING DEVICE

#53
20200333045
2020-10-22

IMPROVED WATER HEATER CONTROL ARRANGEMENT AND ASSEMBLY

#54
20200309388
2020-10-01

Water heaters with real-time hot water supply determination

#55
20200292208
2020-09-17

Method and system for securing temperature sensors on the outer surface of a tank of an electric water heater

#56
20200292181
2020-09-17

Heating devices to prevent bacteria proliferation in the lowermost region of a water holding tank of an electric water heater

#57
20200292180
2020-09-17

Heating devices to prevent bacteria proliferation in the lowermost region of a water holding tank of an electric water heater

#58
20200224927
2020-07-16

Tank-based and tankless water heater systems

#59
20200200435
2020-06-25

LIQUID HEATING APPLIANCE, PARITCIULARLY WATER HEATING APPLIANCE

#60
20200200402
2020-06-25

Intelligent water tank heating management system

#61
20200154940
2020-05-21

Electronic control of a dual-stage water heater in a hot-beverage vending machine

#62
20200113019
2020-04-09

ELECTRIC HEATING DEVICE

#63
20200094655
2020-03-26

AIR HEATING DEVICE

#64
20200094654
2020-03-26

FLUID HEATING DEVICE AND METHOD FOR THE PRODUCTION THEREOF

#65
20200056811
2020-02-20

Heating device and method for operating a heating device

#66
20200031687
2020-01-30

Method and apparatus for preventing bacteria proliferation in an electric water heater

#67
20200025412
2020-01-23

Combined Heater And Accumulator Assemblies

#68
20200018521
2020-01-16

Field conversion electric water heater

#69
20190331348
2019-10-31

System and method for preventing bacteria proliferation in an electric water heater tank

#70
20190323731
2019-10-24

Electric water heater having a bypass

#71
20190285313
2019-09-19

Regulating temperature and reducing buildup in a water heating system

#72
20190264950
2019-08-29

POWER SUPPLY SYSTEM FOR AN ELECTRICALLY POWERED RESISTIVE ELEMENT

#73
20190249903
2019-08-15

Electronic control system for electric water heater

#74
20190234622
2019-08-01

HOT WATER ENERGY CONSERVATION

#75
20190212035
2019-07-11

System and method for accellerated heating of a fluid

#76
20190203952
2019-07-04

Domestic water heating system

#77
20190195533
2019-06-27

Leak detection system for water heaters

#78
20190170398
2019-06-06

Tank-based and tankless water heater systems

#79
20190145634
2019-05-16

Hybrid heat pump water heaters

#80
20190111894
2019-04-18

Washer tank

#81
20190086121
2019-03-21

System and method for operating a grid controlled water heater

#82
20190072283
2019-03-07

Heating devices to prevent bacteria proliferation in the lowermost region of a water holding tank of an electric water heater

#83
20190061463
2019-02-28

Cooling water heating apparatus for electric vehicle

#84
20190024943
2019-01-24

Water heater inlet fitting, flow sensor, shut off valve and diffuser

#85
20190024908
2019-01-24

Water heaters with real-time hot water supply determination

#86
20180372376
2018-12-27

Electric hot water heater energy management

#87
20180313578
2018-11-01

CONTROL SYSTEMS FOR RENEWABLE HOT WATER HEATING SYSTEMS

#88
20180306465
2018-10-25

Heatable fluid bag

#89
20180292095
2018-10-11

Control system and method for operating a lower resistive heating element of an electric water heater to kill bacteria

#90
20180290899
2018-10-11

Method and apparatus for preventing bacteria proliferation in an electric water heater

#91
20180274816
2018-09-27

Supply module having a heating device for conveying an operating/auxiliary agent capable of freezing

#92
20180266725
2018-09-20

Terminal device for a tubular heating device with integrated fuse

#93
20180209691
2018-07-26

Fluid heating apparatus

#94
20180195764
2018-07-12

Electronic unlock feature

#95
20180142921
2018-05-24

Electric water heater having dry fire protection capability

#96
20180106501
2018-04-19

Electric water heater having integrated lock

#97
20180106497
2018-04-19

Tankless water heater

#98
20180094833
2018-04-05

WATER HEATER APPLIANCE

#99
20180080684
2018-03-22

Safety power connecting system and method for electric water heaters

#100
20180051910
2018-02-22

Cathodic corrosion and dry fire protection apparatus and methods for electric water heaters

#101
20180051907
2018-02-22

Electric water heater having internal heat concentrator

#102
20180010810
2018-01-11

Water heating assembly for providing hot water in a reduced time to a point of use, and related kit, use and method

#103
20170334408
2017-11-23

Device for heating washer fluid

#104
20170276403
2017-09-28

Combined heater and accumulator assemblies

#105
20170248343
2017-08-31

Boiling water heater

#106
20170167752
2017-06-15

Water heater having thermal displacement conduit

#107
20170153042
2017-06-01

Portable Solar Heating Apparatus

#108
20170130988
2017-05-11

Tankless water heater

#109
20170059206
2017-03-02

Dual/multi energy gas water heater

#110
20170051946
2017-02-23

Water Heating Device

#111
20170023275
2017-01-26

Accumulator tank

#112
20170005609
2017-01-05

SOLAR OPERATED DOMESTIC WATER HEATING SYSTEM

#113
20160348944
2016-12-01

Water heater and method of operating the same

#114
20160320095
2016-11-03

Water heater and method of operating a water heater

#115
20160195300
2016-07-07

Urea tank and base plate with an integrated heating element

#116
20160195284
2016-07-07

Water heater having a supplemental photovoltaic heating arrangement

#117
20160169556
2016-06-16

Water heater control using external temperature sensor

#118
20160138813
2016-05-19

System for producing hot water

#119
20160057810
2016-02-25

Electrochemical descaling by pulsed signal reversal

#120
20160047572
2016-02-18

Smart energy controlled water heater

#121
20160040894
2016-02-11

STRUCTURE OF HOT WATER PIPE INSERTED WITH HEATING WIRE

#122
20160031421
2016-02-04

Washer liquid heating apparatus integrated into washer reservoir

#123
20160025372
2016-01-28

Tankless water heater

#124
20160010879
2016-01-14

Electric water heater systems for power grids with distributed generation

#125
20150377497
2015-12-31

Hot water energy conservation

#126
20150308713
2015-10-29

Device that eliminates the drainage of liquid during the changing of a heating element

#127
20150241087
2015-08-27

Gas-fired water heater with separable heat exchanger or detachably connected external water heater

#128
20150226452
2015-08-13

Storage boiler

#129
20150142202
2015-05-21

METHODS AND SYSTEMS FOR REMOTELY MANAGING WATER HEATING UNITS IN A WATER HEATER AND RELATED WATER HEATERS AND CIRCUITS

#130
20150131978
2015-05-14

HOT WATER HEATER WITH BULKHEAD SCREW FITTING

#131
20150104160
2015-04-16

Photovoltaic DC heater systems

#132
20150093101
2015-04-02

Boiler for hot water heating mats

#133
20150013622
2015-01-15

Water heater appliance and a method for operating the same

#134
20140376899
2014-12-25

Cathodic corrosion and dry fire protection apparatus and methods for electric water heaters

#135
20140241708
2014-08-28

Electronic control system for electric water heater

#136
20140153913
2014-06-05

Solar Photovoltaic Water Heating System

#137
20140153912
2014-06-05

Tank with heating element for selective catalytic reduction

#138
20140138368
2014-05-22

Selective catalytic reduction tank with heating element

#139
20140112647
2014-04-24

Solar photovoltaic water heating system utilizing microprocessor control and water heater retrofit adaptor

#140
20140105585
2014-04-17

Reservoir fluid heating devices and methods of heating

#141
20140083414
2014-03-27

Solar heater for liquids

#142
20130284117
2013-10-31

Apparatus and control method for a hybrid tankless water heater

#143
20130284116
2013-10-31

Gas control method for a hybrid tankless water heater

#144
20130266300
2013-10-10

Renewable energy hot water heating elements

#145
20130266296
2013-10-10

Control systems for renewable hot water heating systems

#146
20130230303
2013-09-05

Fluid heater and method of use thereof

#147
20130202277
2013-08-08

Heated water energy storage system

#148
20130200168
2013-08-08

Smart energy controlled water heater

#149
20130193221
2013-08-01

Water heater control using external temperature sensor

#150
20130108249
2013-05-02

Refrigeration appliance with hot water dispenser

#151
20130098889
2013-04-25

Freeze prevention mobile equipment system

#152
20130094840
2013-04-18

Tankless water heater

#153
20130037019
2013-02-14

WATER HEATER WITH INTERMITTENT ENERGY SOURCE

#154
20130031923
2013-02-07

Condenser coil holder for water heater

#155
20120291868
2012-11-22

WATER HEATING DEVICE

#156
20120285542
2012-11-15

MULTI-STAGE STORAGE SYSTEM

#157
20120272927
2012-11-01

ACCUMULATOR TANK WITH PARTITION WALLS

#158
20120222631
2012-09-06

Gas-fired water heater with separable heat exchanger or detachably connected external water heater

#159
20120191259
2012-07-26

Control system methods for networked water heaters

#160
20120183281
2012-07-19

WASHER FLUID WARMING DEVICE

#161
20120118989
2012-05-17

Smart energy controlled water heater

#162
20120055917
2012-03-08

Low-voltage fluid heater

#163
20120051724
2012-03-01

INSTANTANEOUS WATER HEATING UNIT FOR INSERTION INTO A HOT WATER STORAGE TANK

#164
20110299840
2011-12-08

ELECTRICAL WATER HEATING SYSTEM

#165
20110239673
2011-10-06

Water heater containing a phase change material

#166
20110123179
2011-05-26

Water heating control and storage system

#167
20110095010
2011-04-28

WATER TANK HEATER WITH PREDICTIVE HEATER FAILURE FEATURE

#168
20110058796
2011-03-10

WATER HEATER ARRANGEMENT

#169
20100329651
2010-12-30

System for and a method of heating water

#170
20100310240
2010-12-09

High-efficiency water boiler

#171
20100296800
2010-11-25

Fluid heating device

#172
20100282458
2010-11-11

CARBON FIBER HEATING SOURCE AND HEATING SYSTEM USING THE SAME

#173
20100251973
2010-10-07

Fluid heating system

#174
20100220984
2010-09-02

Urea tank and base plate with an integrated heating element

#175
20100200671
2010-08-12

Vehicle windshield cleaning system

#176
20100198417
2010-08-05

Control system methods for networked water heaters

#177
20100195991
2010-08-05

Apparatus and control method for a hybrid tankless water heater

#178
20100183286
2010-07-22

Apparatus with expansion chamber providing large heat distribution

#179
20100166398
2010-07-01

Method and system for reducing response time in booster water heating applications

#180
20100155386
2010-06-24

Water heater and method of operating the same

#181
20100150535
2010-06-17

Aircraft use water heater

#182
20100133356
2010-06-03

Vehicle windshield cleaning system

#183
20100116812
2010-05-13

Dry fire protection system

#184
20100102140
2010-04-29

VEHICLE WINDSHIELD CLEANING SYSTEM

#185
20100031899
2010-02-11

WATER HEATER

#186
20090272373
2009-11-05

Hot Water Tank With A Movable Inner Partition

#187
20090260583
2009-10-22

SEPARABLE HOT WATER TANK

#188
20090226155
2009-09-10

Methods for preventing a dry fire condition and a water heater incorporating same

#189
20090194040
2009-08-06

FLAT CASING WATER-HEATER

#190
20090145892
2009-06-11

Modularly contained dual or multiple system water heating element assembly

#191
20090084330
2009-04-02

ENCLOSURE FOR MARINE WATER HEATERS

#192
20090047008
2009-02-19

Immersion Heater and Method of Use

#193
20090000573
2009-01-01

Water heater sediment drain system and method

#194
20080283629
2008-11-20

Vehicle windshield cleaning system

#195
20080205865
2008-08-28

HIGH EFFICIENCY, PEAK-POWER REDUCING, DOMESTIC HOT WATER HEATER

#196
20080188995
2008-08-07

Water heater monitor/diagnostic display apparatus

#197
20080107409
2008-05-08

High efficiency, peak power reducing, domestic hot water heater

#198
20080050105
2008-02-28

Water heating vessel

#199
20070284457
2007-12-13

Vehicle windshield cleaning system

#200
20070251468
2007-11-01

Versatile container

#201
20070212036
2007-09-13

Non-metallic heating element for use in a fluid heater

#202
20070081801
2007-04-12

Plastic boiler without flange

#203
20070077043
2007-04-05

Electric water heater with hot water outlet dip tube

#204
20060231046
2006-10-19

Internal small volume storage water heater

#205
20060124761
2006-06-15

Vehicle windshield cleaning system

#206
20060051080
2006-03-09

Oilfield tool annulus heater

#207
20060029375
2006-02-09

Water heater and method of mounting a heating element in a water heater

#208
20050166313
2005-08-04

Insulated hot water storage tank for sink

#209
20050135796
2005-06-23

In line oil field or pipeline heating element

#210
20050127062
2005-06-16

Device for heating article to be treated

#211
20050109763
2005-05-26

Aircraft hot water supply system

#212
20050036772
2005-02-17

Methods and apparatus for water delivery systems within refrigerators

#213
20050005879
2005-01-13

Multicompartment hot water tank

#214
20050001058
2005-01-06

Vehicle windshield cleaning system

#215
20050001047
2005-01-06

Energy efficient electric water heater system that provides immediate hot water at a point of use and a method therefor

#216
16588908
2022-10-11

Boiler apparatus and method thereof

#217
14963017
2017-12-05

Stackable water heater apparatus