F24F 3/00 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 (room units F24F1/00)
Introduced: September 1968
Title
Titles differ between systems:
IPC: 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
CPC: 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 (room units F24F1/00)
Full Title
Full titles differ between systems:
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
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 (room units F24F1/00)
Of 7 combined children, 4 exist in both systems.
3 codes are CPC-only extensions.
Note: 2 CPC extensions are marked as secondary classification only.
Child Classifications
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- F24F 3/02 characterised by the pressure or velocity of the primary air IPC+CPC Available in IPC and CPC
- F24F 3/044 Systems in which all treatment is given in the central station, i.e. all-air systems since 1980 +3 CPC IPC+CPC Available in IPC and CPC
- F24F 3/06 characterised by the arrangements for the supply of heat-exchange fluid for the subsequent treatment of primary air in the room units +1 CPC IPC+CPC Available in IPC and CPC
- F24F 3/12 characterised by the treatment of the air otherwise than by heating and cooling IPC+CPC Available in IPC and CPC
Top Applicants
Top Applicants (IPC)
Class F24,2013–2023, worldwide · Source: EPO PATSTAT
- MIDEA 21,834
- GREE ELECTRIC APPLIANCES 21,535
- GUANGDONG MIDEA REFRIGERATION EQUIPMENT COMPANY 20,870
- QINGDAO HAIER AIR CONDITIONER COMPANY 15,443
- HAIER SMART HOME 15,442
- QINGDAO HAIER AIR CONDITIONER ELECTRIC COMPANY 10,008
- AUX AIR CONDITIONING COMPANY 7,723
- NINGBO AUX ELECTRIC COMPANY 7,499
- NINGBO FOTILE KITCHENWARE COMPANY 6,712
- LG ELECTRONICS KR 6,441
Top Applicants (CPC)
Class F24,2013–2023, worldwide · Source: EPO PATSTAT
- GREE ELECTRIC APPLIANCES 11,167
- QINGDAO HAIER AIR CONDITIONER COMPANY 9,225
- HAIER SMART HOME 8,998
- MIDEA 8,874
- GUANGDONG MIDEA REFRIGERATION EQUIPMENT COMPANY 8,724
- LG ELECTRONICS KR 7,258
- MITSUBISHI ELECTRIC CORPORATION JP 7,009
- QINGDAO HAIER AIR CONDITIONER ELECTRIC COMPANY 6,104
- BSH (BOSCH UND SIEMENS HAUSGERAETE) DE 3,544
- NINGBO AUX ELECTRIC COMPANY 3,302