ClassID:

157845

F24D5/12 - CPC Classification

Classification description:

Hot-air central heating systems ; Exhaust gas central heating systems using heat pumps

Recent Application in this class:
#1
20260153244
2026-06-04

AIR CONDITIONING SYSTEM USING HEAT PUMP AND AIR HEATING DEVICE

#2
20260078912
2026-03-19

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

#3
20250216110
2025-07-03

AIR CONDITIONING DEVICE

#4
20250020336
2025-01-16

Method For Operating a Heat Pump

#5
20240210043
2024-06-27

AIR CONDITIONING SYSTEM USING HEAT PUMP AND AIR HEATING DEVICE

#6
20240142146
2024-05-02

Modular Cold Climate Heat Pump System with Multi-Segment Heat Exchanger

#7
20240035717
2024-02-01

THERMAL ENERGY STORAGE INTEGRATED HEAT PUMP

#8
20230130780
2023-04-27

Thermal energy storage integrated heat pump

#9
20230039702
2023-02-09

Methods and systems for district energy CO2 support

#10
20220082268
2022-03-17

VARIABLE CAPACITY HEAT PUMP SYSTEM

#11
20210348773
2021-11-11

Air conditioning system and method for controlling air conditioning system

#12
20210310668
2021-10-07

SUPPLEMENTAL HEATING DEVICE AND METHOD

#13
20210278094
2021-09-09

Distributed heating and cooling network

#14
20210164680
2021-06-03

Portable thermostat systems and methods

#15
20210148607
2021-05-20

Solar air heater

#16
20210123607
2021-04-29

THERMALLY ENHANCED HEATING

#17
20210088254
2021-03-25

Solar air heater

#18
20210048229
2021-02-18

Geothermal heat exchanger, geothermal heat arrangement and method for charging thermal energy into ground

#19
20210018224
2021-01-21

Solar air heater

#20
20200141596
2020-05-07

SYSTEM FOR CONDITIONING AIR OF A BUILDING

#21
20200088450
2020-03-19

Dynamically adaptive combined heat and power system with a thermal energy store and method thereof

#22
20200041144
2020-02-06

Heat source system controlling device, heat source system, heat source system controlling method, and heat source system controlling program

#23
20190353355
2019-11-21

Hybrid fossil fuel-electric multi-function heat pump

#24
20190277531
2019-09-12

Portable thermostat systems and methods

#25
20190154283
2019-05-23

COMPACT AIR HANDLER WITH MULTIPLE FANS

#26
20190154271
2019-05-23

Heating system

#27
20190154270
2019-05-23

HEAT PUMP APPARATUS FOR AIR RENEWAL IN DOMESTIC ROOMS AND THE METHOD OF OPERATION THEREOF

#28
20190120524
2019-04-25

Solar air heater

#29
20190037024
2019-01-31

Methods, systems, and related architectures for managing network connected devices

#30
20180314403
2018-11-01

Setting value change device

#31
20180259218
2018-09-13

Air conditioning system

#32
20180191154
2018-07-05

Monitoring and recoverable protection of switching circuitry for smart-home devices

#33
20180187927
2018-07-05

SYSTEM AND METHOD FOR REUSING WASTE HEAT OF A TRANSCRITICAL REFRIGERATION SYSTEM

#34
20180031254
2018-02-01

Method and apparatus for retrofitting an air conditioning system using all-weather solar heating

#35
20170234550
2017-08-17

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

#36
20170122576
2017-05-04

Gas fired modular blower control and associated methodology

#37
20170067652
2017-03-09

Hybrid heat pump system

#38
20170003036
2017-01-05

Apparatus and method for heating air at an air treatment device

#39
20160334115
2016-11-17

Air conditioning system with heat pump section and separate heat source section

#40
20160187043
2016-06-30

System and method for maintaining air temperature within a building HVAC system

#41
20160119430
2016-04-28

Methods, systems, and related architectures for managing network connected devices

#42
20160061508
2016-03-03

Apparatus and method for hybrid water heating and air cooling and control thereof

#43
20160061502
2016-03-03

Apparatus and method for hybrid water heating and air cooling and control thereof

#44
20150330675
2015-11-19

Heat pump system

#45
20150323211
2015-11-12

HVAC system grading systems and methods

#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
20150090803
2015-04-02

Air conditioning system

#51
20150068226
2015-03-12

Apparatus and method for controlling indoor airflow for heat pumps

#52
20150057814
2015-02-26

Methods, systems, and related architectures for managing network connected thermostats

#53
20150034293
2015-02-05

Air-conditioning apparatus

#54
20140311172
2014-10-23

Outdoor unit and air-conditioning apparatus

#55
20140262134
2014-09-18

HVAC system remote monitoring and diagnosis

#56
20140260408
2014-09-18

Compact air handler with multiple fans

#57
20140252100
2014-09-11

Gas fired modular blower control and associated methodology

#58
20140203092
2014-07-24

COMMUNICATING THERMOSTAT RECOVERY ALGORITHM

#59
20140197243
2014-07-17

Hydronic air heater

#60
20140175181
2014-06-26

Monitoring and recoverable protection of thermostat switching circuitry

#61
20130213069
2013-08-22

Heat Pump

#62
20130205824
2013-08-15

Heat pump device

#63
20130180266
2013-07-18

Heat pump system with auxiliary heat exchanger

#64
20130126625
2013-05-23

Fuel Cell Heat Pump

#65
20130118193
2013-05-16

Heat pump air-conditioning system and method for controlling the same

#66
20130014530
2013-01-17

HEAT RECOVERY SYSTEM

#67
20120324923
2012-12-27

Heat pump and method for controlling the same

#68
20120245739
2012-09-27

System and method for maintaining air temperature within a building HVAC system

#69
20120239221
2012-09-20

Methods, systems, and related architectures for managing network connected thermostats

#70
20120192577
2012-08-02

Wear-leveling for components of an auxiliary heat source

#71
20120180982
2012-07-19

Heat pump system having a pre-processing module

#72
20120180505
2012-07-19

Heat pump system having a pre-processing module

#73
20120042867
2012-02-23

Re-Exchange Energy-Saving Building System

#74
20120027388
2012-02-02

ADAPTIVE HEAT PUMP RESISTANCE HEAT CONTROLLER

#75
20110277745
2011-11-17

Heating apparatus using solar energy and method of heating using solar energy

#76
20110100043
2011-05-05

AIR CONDITIONING/VENTILATING SYSTEM

#77
20110067436
2011-03-24

Air conditioning system

#78
20110061832
2011-03-17

GROUND-TO-AIR HEAT PUMP SYSTEM

#79
20110057046
2011-03-10

Heating system controller, a heating system and a method of operating a heating system

#80
20110048016
2011-03-03

Energy-recovery system for a production plant

#81
20110041835
2011-02-24

SOLAR HEAT EXCHANGER

#82
20110041833
2011-02-24

SOLAR HEAT EXCHANGER CONTROLLER

#83
20100170655
2010-07-08

Air Supply Unit

#84
20100024106
2010-02-04

Bathroom air-conditioner

#85
20090114732
2009-05-07

Multiple cell heat transfer system

#86
20080164333
2008-07-10

Heating System And A Method For Heating