ClassID:

158056

F24D2200/32 - CPC Classification

Classification description:

Heat sources or energy sources involving multiple heat sources in combination or as alternative heat sources

Recent Application in this class:
#1
20260153253
2026-06-04

HYBRID HEATING SYSTEM WITH HUMIDITY CONTROL

#2
20260117991
2026-04-30

System, Apparatus and Method for Efficient Use of Solar Photovoltaic Energy

#3
20260078912
2026-03-19

SOLAR HEATING SYSTEMS AND METHODS FOR PROVIDING DEMAND RESPONSE ASSISTANCE TO ELECTRIC HEAT PUMPS AND WATER HEATERS

#4
20260022844
2026-01-22

SPACE HEATING SYSTEM

#5
20260022841
2026-01-22

SPACE HEATING SYSTEM

#6
20250216110
2025-07-03

AIR CONDITIONING DEVICE

#7
20250146676
2025-05-08

HEAT SUPPLY NETWORK FOR A PROCESS PLANT, AND METHOD FOR OPERATING SUCH A HEAT SUPPLY NETWORK

#8
20250060112
2025-02-20

MULTI-HEATER HEATING SYSTEM

#9
20250003601
2025-01-02

HEAT SOURCE SYSTEM

#10
20240337391
2024-10-10

SYSTEM, APPARATUS AND METHOD FOR EFFICIENT USE OF SOLAR PHOTOVOLTAIC ENERGY

#11
20240328636
2024-10-03

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

#12
20230147425
2023-05-11

Control Systems for a Heat Network

#13
20230090226
2023-03-23

Systems and methods for direct use of solar energy

#14
20230003420
2023-01-05

SYSTEMS, APPARATUS, AND METHODS FOR REMOTE CONTROL OF A PLURALITY OF HEATING DEVICES

#15
20220341600
2022-10-27

Heat pump water heater systems and methods thereto

#16
20220163221
2022-05-26

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

#17
20220154976
2022-05-19

Combustion gas permeable condensation trays for water heating systems

#18
20220136711
2022-05-05

Thermal solar assisted water heating system

#19
20220010977
2022-01-13

System, apparatus and method for efficient use of solar photovoltaic energy

#20
20210356141
2021-11-18

System, apparatus and method for efficient use of solar photovoltaic energy

#21
20210348773
2021-11-11

Air conditioning system and method for controlling air conditioning system

#22
20210325069
2021-10-21

Integrated community energy and harvesting system

#23
20210310668
2021-10-07

SUPPLEMENTAL HEATING DEVICE AND METHOD

#24
20210239328
2021-08-05

Water heater and control method therefor

#25
20210231348
2021-07-29

Solar water heating system

#26
20210123607
2021-04-29

THERMALLY ENHANCED HEATING

#27
20200378651
2020-12-03

System and method for heating water

#28
20200309385
2020-10-01

Self-powered water heater

#29
20200263881
2020-08-20

Heat pump system and method for controlling a heat pump system

#30
20190334350
2019-10-31

System, apparatus and method for efficient use of solar photovoltaic energy

#31
20190145634
2019-05-16

Hybrid heat pump water heaters

#32
20190114724
2019-04-18

Method for controlling a power supply system

#33
20190107295
2019-04-11

Device and Method For Configuring a Multivalent Energy Supply Installation

#34
20190101297
2019-04-04

HEAT TRANSFER APPARATUS AND HEAT TRANSFER SYSTEM FOR MASONRY HEATER

#35
20180356105
2018-12-13

Modeling method of combined heat and power optimal dispatching model

#36
20180335219
2018-11-22

Heat pump system and method for controlling a heat pump system

#37
20180320907
2018-11-08

Heat pump network

#38
20180238563
2018-08-23

System, apparatus and method for efficient use of solar photovoltaic energy

#39
20180149374
2018-05-31

Animal house environment control system with multiple levels of redundancy

#40
20170336080
2017-11-23

Combined heating system capable of bi-directional heating

#41
20170234550
2017-08-17

Combined hot water and air heating and conditioning system including heat pump

#42
20170122574
2017-05-04

System and method for using alternative energy source for hot water heater storage tank

#43
20160341434
2016-11-24

Air conditioning system

#44
20150354831
2015-12-10

Combined heating system capable of bi-directional heating

#45
20150253038
2015-09-10

Dual energy electric and gas water heater with igniter shutoff circuit

#46
20150219343
2015-08-06

Air conditioning system

#47
20150219342
2015-08-06

Air conditioning system

#48
20150135744
2015-05-21

Combination air and ground source heating and/or cooling system

#49
20150122901
2015-05-07

Wear-leveling for components of an auxiliary heat source

#50
20150114019
2015-04-30

Heat pump system using latent heat

#51
20150104725
2015-04-16

Combined fuel cell and boiler system

#52
20150090803
2015-04-02

Air conditioning system

#53
20150069756
2015-03-12

Combined power and heating station

#54
20140303787
2014-10-09

Heating system and method for heating a building and/or for preparing hot water

#55
20130266300
2013-10-10

Renewable energy hot water heating elements

#56
20130266295
2013-10-10

Hybrid Gas-Electric Hot Water Heater

#57
20130263843
2013-10-10

PV water heating system

#58
20130220464
2013-08-29

Flow control

#59
20120192577
2012-08-02

Wear-leveling for components of an auxiliary heat source

#60
20120160472
2012-06-28

Method for controlling a parallel operation of a multi-water heater

#61
20120090559
2012-04-19

Economically-operated, dual-energy hot water supply system and method of operating the same

#62
20110315093
2011-12-29

Fluid heating system, fluid heating method, fluid heating control system, control apparatus, and control method

#63
20110215079
2011-09-08

Methods and apparatus providing flame-less heat

#64
20110083462
2011-04-14

DEVICE FOR OBTAINING HEAT

#65
20090320503
2009-12-31

Cogeneration system

#66
20090180765
2009-07-16

Multiple-power-selection heat storage device

#67
20070246555
2007-10-25

Heat Conveyance System

#68
18894032
2025-08-05

Collaborative optimization method, system, equipment and storage medium for electric and heating networks and building user

#69
17522472
2025-09-23

Water heater system

#70
17023542
2021-11-23

Combustion gas permeable condensation trays for water heating systems