F24F3/00 - CPC Classification Index

ClassID:

158174 ⎘

F24F3/00 - 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

Sub-classes:

F24F2003/003 » {with primary air treatment in the central station and subsequent secondary air treatment in air treatment units located in or near the rooms} 24
F24F2003/008 » {Supplying highly filtered air to a room or to a limited area within a room} 15
F24F3/001 » {in which the air treatment in the central station takes place by means of a heat-pump or by means of a reversible cycle } 102
F24F3/02 » characterised by the pressure or velocity of the primary air 4
F24F3/044 » Systems in which all treatment is given in the central station, i.e. all-air systems 258
F24F3/06 » characterised by the arrangements for the supply of heat-exchange fluid for the subsequent treatment of primary air in the room units 228
F24F3/12 » characterised by the treatment of the air otherwise than by heating and cooling 32

Recent Application in this class:

20260131173

2026-05-14

SYSTEM AND METHOD OF A RING ARCHITECTURE OF A FIXED PIPING SYSTEM IMPLEMENTED WITHIN A SAFETY SYSTEM OF A STRUCTURE TO CONTINUOUSLY SUPPLY BREATHABLE AIR THEREWITHIN

20250116422

2025-04-10

ASYMMETRIC HEAT EXCHANGER

20240001168

2024-01-04

SYSTEM AND METHOD OF A RING ARCHITECTURE OF A FIXED PIPING SYSTEM IMPLEMENTED WITHIN A SAFETY SYSTEM OF A STRUCTURE TO CONTINUOUSLY SUPPLY BREATHABLE AIR THEREWITHIN

20230204234

2023-06-29

HVAC System With Volume Modulating Valve

20230067050

2023-03-02

Device for automatic control of temperature, system for automatic control of temperature, and method thereof

20220243944

2022-08-04

Variable airflow energy efficient HVAC systems and methods

20210388998

2021-12-16

HVAC system with volume modulating valve

20210302037

2021-09-30

Personal air system for offices

20210222910

2021-07-22

AIR HANDLING UNIT

#10

20210140667

2021-05-13

Transmission device, air-conditioning apparatus, and air-conditioning system

#11

20210018185

2021-01-21

Air handler unit

#12

20200348037

2020-11-05

Air conditioner system and control method thereof

#13

20200326082

2020-10-15

HVAC system with volume modulating valve

#14

20200185247

2020-06-11

Physical vapor deposition (PVD) electrostatic chuck with improved thermal coupling for temperature sensitive processes

#15

20200132318

2020-04-30

AIR CONDITIONING/HEATING AIRFLOW CONTROL METHOD AND SYSTEM

#16

20190209962

2019-07-11

Cartridge for airflow scrubbing systems and methods of manufacture thereof

#17

20190079479

2019-03-14

Ceiling fan that controls thermostat based on presence information

#18

20190041080

2019-02-07

Remote control device for an air conditioning system

#19

20180372335

2018-12-27

System and device for heating, cooling, ventilating and illuminating an interior space

#20

20180252422

2018-09-06

Control system with maximum time constant estimation

#21

20180226881

2018-08-09

Power conversion device and air conditioner comprising same

#22

20170349325

2017-12-07

Method and apparatus for ultra-clean seeker transportation and storage

#23

20170299218

2017-10-19

DUCT-TYPE AIR CONDITIONING SYSTEM

#24

20170299206

2017-10-19

REFRIGERANT PIPE AND HEAT PUMP APPARATUS

#25

20170138623

2017-05-18

Zonal demand control ventilation for a building

#26

20170122611

2017-05-04

Device and method for controlling a supply air flow at an air treatment system

#27

20170030361

2017-02-02

Stepped-louvre heating, ventilating and air conditioning unit used in high-velocity, low speed fan

#28

20160334783

2016-11-17

Remote testing of HVAC systems

#29

20160290673

2016-10-06

APPARATUS AND METHOD FOR ADAPTIVELY APPLYING CENTRAL HVAC SYSTEM AND INDIVIDUAL HVAC SYSTEM

#30

20160252266

2016-09-01

System and method for controlling an HVAC unit based on thermostat signals

#31

20150219354

2015-08-06

Air-conditioning control system

#32

20150219353

2015-08-06

Air-conditioning control system using sound waves

#33

20150204560

2015-07-23

ENVIRONMENTAL PARAMETER SETTING AIDING DEVICE AND METHOD

#34

20150204551

2015-07-23

ENERGY SAVING METHOD FOR ROOM LEVEL HEATING AND COOLING SYSTEM

#35

20150198349

2015-07-16

Controlling a central air-conditioning system that conditions at least heating operation of a plurality of rooms in a house

#36

20150108230

2015-04-23

MULTIPLE ZONE CONTROL SYSTEM AND METHOD OF OPERATION

#37

20140367069

2014-12-18

Floor-positioned air-conditioning apparatus

#38

20140346238

2014-11-27

Indoor unit and air conditioning system using the same

#39

20140298831

2014-10-09

Systems and Methods for Conditioning Air

#40

20140039835

2014-02-06

Remote testing of HVAC systems

#41

20130166074

2013-06-27

Air conditioning system and air conditioning method

#42

20120191253

2012-07-26

HVAC/R system with multiple power sources and time-based selection logic

#43

20110172832

2011-07-14

System and method for conditioning air

#44

20100318226

2010-12-16

Intelligent grid-based HVAC system

#45

20070178823

2007-08-02

Airflow control system

#46

20050228607

2005-10-13

Remote testing of HVAC systems

#47

20050011964

2005-01-20

System and method for controlling the temperature of an open-air area

#48

16174650

2019-07-23

Air conditioning/heating airflow control method and system

#49

15482802

2020-04-28

Method and smart air conditioning system