ClassID:

158175

F24F3/001 - CPC Classification

Classification description:

Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems in which the air treatment in the central station takes place by means of a heat-pump or by means of a reversible cycle

Recent Application in this class:
#1
20260146677
2026-05-28

Directional Valve for a Heat Pump and Heat Pump

#2
20260016194
2026-01-15

INTEGRATED WATER DEVICE APPLIED TO HEAT PUMP SYSTEM, HEAT PUMP SYSTEM, AND CONTROL METHOD THEREOF

#3
20250305694
2025-10-02

HVAC CASCADE HEAT PUMP

#4
20250189161
2025-06-12

TEMPERATURE CONTROL SYSTEM WITH REPLACEMENT MODULE ELECTRIC HEAT PUMP

#5
20250123011
2025-04-17

HYBRID HEATING AND COOLING SYSTEM

#6
20250093053
2025-03-20

Cooling Systems Having An Integrated Ionic Liquid Salt Dehumidification System

#7
20240167701
2024-05-23

MODULAR HVAC-SHW SYSTEM AND A METHOD OF INTEGRATING THEREOF

#8
20240060677
2024-02-22

Ventilation apparatus with total heat exchanger

#9
20240053030
2024-02-15

COIL ASSEMBLY PLATE WITH COMPENSATOR ACCOMMODATION

#10
20240044553
2024-02-08

Central air conditioning and heat pump system with cooling arrangement

#11
20240011648
2024-01-11

MICROCHANNEL HEAT EXCHANGER FOR HEAT PUMP

#12
20230417429
2023-12-28

Virtual Superheat Measurement Sensor for Refrigeration Cycle

#13
20230408154
2023-12-21

Reheat operation for heat pump system

#14
20230383963
2023-11-30

Cooling systems having an integrated ionic liquid salt dehumidification system

#15
20230152770
2023-05-18

Building management system with instant feedback on configuration

#16
20230082958
2023-03-16

Air-conditioning system and air-conditioning system controller

#17
20230080007
2023-03-16

FREE COOLING SYSTEM FOR HVAC SYSTEM

#18
20220397313
2022-12-15

Reheat operation for heat pump system

#19
20220390126
2022-12-08

Air to air heat pump with heat recovery function and exhaust air humidity for heating ventilation and air conditioning systems

#20
20220298786
2022-09-22

INTEGRATED MODULAR SMART FACADE SYSTEM

#21
20220214653
2022-07-07

Building management system with point virtualization for online meters

#22
20220214072
2022-07-07

Fan unit, fan unit system, and air treatment system

#23
20220196259
2022-06-23

Three-pipe multi-split air-conditioning system and control method thereof

#24
20220146124
2022-05-12

Air conditioning system

#25
20220146123
2022-05-12

AIR TREATMENT SYSTEM

#26
20220121795
2022-04-21

EQUIPMENT FAULT DETECTION, DIAGNOSTICS AND DISAGGREGATION SYSTEM

#27
20220099314
2022-03-31

Cooling systems having an integrated ionic liquid salt dehumidification system

#28
20210396425
2021-12-23

Environmental control unit

#29
20210180805
2021-06-17

Gas heat-pump system and method of controlling same

#30
20210102726
2021-04-08

LOW AMBIENT OUTDOOR COIL RESTRICTOR PLATE FOR AIR CONDITIONER

#31
20210041839
2021-02-11

Variable refrigerant flow system with automatic sensor data correction

#32
20200240673
2020-07-30

Systems and methods for pumping down flammable refrigerant

#33
20200240661
2020-07-30

Systems and methods for pumping down flammable refrigerant

#34
20200232245
2020-07-23

Flow Tent System

#35
20200191422
2020-06-18

Air conditioning system with reduced mould growth conditions

#36
20200182500
2020-06-11

Controlling drying conditions to maintain humidity levels during HVAC operation

#37
20200072481
2020-03-05

Method and apparatus for reduction of condensate re-evaporation during cooling part-load duty cycling

#38
20200049381
2020-02-13

PASSIVE ENERGY LOOP SYSTEM AND METHOD

#39
20190369575
2019-12-05

Building management system with searching using aliased points from equipment definitions

#40
20190285348
2019-09-19

Variable circuitry heat exchanger system

#41
20190235454
2019-08-01

Building management system with instant feedback on configuration

#42
20190234633
2019-08-01

Air conditioning system

#43
20190178505
2019-06-13

System for conditioning an airflow using a portable closed loop cooling system

#44
20190154270
2019-05-23

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

#45
20190146430
2019-05-16

Building management system with point virtualization for online meters

#46
20190145650
2019-05-16

Building management system with automatic synchronization of point read frequency

#47
20190102492
2019-04-04

Equipment fault detection, diagnostics and disaggregation system

#48
20190086113
2019-03-21

Air conditioning system including a ventilator that supplies humidified outdoor air

#49
20180313562
2018-11-01

Air-source heat pump air conditioner

#50
20180224136
2018-08-09

Method and apparatus for reduction of condensate re-evaporation during cooling part-load duty cycling

#51
20180209675
2018-07-26

HVAC system with free cooling optimization based on coolant flowrate

#52
20180187906
2018-07-05

Cooling systems having an integrated ionic liquid salt dehumidification system

#53
20180156478
2018-06-07

Air Conditioning and Heating System

#54
20180080696
2018-03-22

Variable Refrigerant Flow System with Decoupled Refrigerant and Air Distribution Subsystems

#55
20180031275
2018-02-01

HVAC furnace condensate removal system

#56
20180003418
2018-01-04

Heat pump system and air-conditioner

#57
20170314795
2017-11-02

Air conditioning and heat pump tower with energy efficient arrangement

#58
20170284685
2017-10-05

Heat pumps utilizing ionic liquid desiccant

#59
20170252693
2017-09-07

Absorption type removal / concentration apparatus

#60
20170227262
2017-08-10

Heat pump apparatus with refrigerant leakage protection

#61
20170205089
2017-07-20

Dehumidifier

#62
20170167747
2017-06-15

Smart building HVAC energy management system

#63
20170074527
2017-03-16

Water tower applied to the water source heat pump central air conditioner

#64
20170067396
2017-03-09

Modular chiller plant

#65
20170051940
2017-02-23

Outside-air processing device and air-conditioning apparatus

#66
20170045242
2017-02-16

Hybrid heat pump apparatus

#67
20160356520
2016-12-08

Air conditioning system and energy management method of air conditioning system

#68
20160341434
2016-11-24

Air conditioning system

#69
20160102873
2016-04-14

Packaged HeatPump with Integrated Smokespill

#70
20160091215
2016-03-31

Air conditioning and heat pump system with evaporative cooling system

#71
20160003561
2016-01-07

Modular liquid based heating and cooling system

#72
20160003489
2016-01-07

Outside air handling unit

#73
20150204626
2015-07-23

Adiabatic refrigerant condenser controls system

#74
20150096320
2015-04-09

Heat pump device, air conditioner, and freezer

#75
20150059392
2015-03-05

Multi-type air conditioner system

#76
20140298843
2014-10-09

DIRECT EXCHANGE HEAT PUMP WITH GROUND PROBE OF IRON ANGLED AT 25 DEGREES OR LESS OR OTHER MATERIAL ANGLED AT 4 DEGREES OR LESS TO THE HORIZONTAL

#77
20120211210
2012-08-23

COAXIAL-FLOW HEAT TRANSFER STRUCTURE

#78
20120210732
2012-08-23

Arrangement for air conditioning rooms and heat pump unit for use in the arrangement

#79
20120043056
2012-02-23

Air conditioning apparatus

#80
20110168362
2011-07-14

COOLING SYSTEM WITH MICROCHANNEL HEAT EXCHANGER

#81
20110168354
2011-07-14

MODULAR COOLING SYSTEM

#82
20110061832
2011-03-17

GROUND-TO-AIR HEAT PUMP SYSTEM

#83
20100314458
2010-12-16

System and method for heat pump oriented zone control

#84
20100065650
2010-03-18

Air conditioning system

#85
20100065245
2010-03-18

AIR CONDITIONING SYSTEM

#86
20100043461
2010-02-25

Energy storage and temperature change type air conditioning method with underground reservoir and water source heat pump, and the dedicated device thereof

#87
20090308099
2009-12-17

Humidity control system

#88
20090282854
2009-11-19

Air conditioning system with defrosting operation

#89
20090250200
2009-10-08

Coaxial-flow heat transfer structures for use in diverse applications

#90
20090159076
2009-06-25

SOLAR ENERGY SAVING SYSTEM USING GAS AND ELECTRICITY AS COMPENSATION

#91
20090125150
2009-05-14

System and method for control of heat system operation by changing a switching set point of operation

#92
20090000611
2009-01-01

Solar and heat pump powered electric forced hot air hydronic furnace

#93
20080216497
2008-09-11

Method and apparatus for improving the efficiency of a heat pump HVAC system

#94
20080209933
2008-09-04

System for exchanging heat within an environment using a coaxial-flow heat exchanging structure with helically-finned tubing

#95
20080000243
2008-01-03

Air Conditioning System

#96
20070235179
2007-10-11

Building source heat pump

#97
20070063059
2007-03-22

System and method for heat pump oriented zone control

#98
20070057075
2007-03-15

System and method for heat pump oriented zone control

#99
20070017243
2007-01-25

Coaxial-flow heat transfer structures for use in diverse applications

#100
20060201180
2006-09-14

Coaxial-flow heat transfer system employing a coaxial-flow heat transfer structure having a helically-arranged fin structure disposed along an outer flow channel for constantly rotating an aqueous-based heat transfer fluid flowing therewithin so as to improve heat transfer with geological environments

#101
20060201179
2006-09-14

Coaxial-flow heat transfer system employing a coaxial-flow heat transfer structure having a helically-arranged fin structure disposed along an outer flow channel for constantly rotating an aqueous-based heat transfer fluid flowing therewithin so as to improve heat transfer with geological environments

#102
20060162720
2006-07-27

Solar and heat pump powered electric forced hot air hydronic furnace

#103
20060070719
2006-04-06

Air conditioner

#104
20060059911
2006-03-23

Space heating and cooling system having a co-generator drive a geothermal connected heat pump

#105
20060032929
2006-02-16

Unitary air conditioning system

#106
20050210908
2005-09-29

Air conditioner

#107
15437704
2017-10-03

Sanitizing system