Rotary wheel

Full Title

Devices or apparatus used for air treatment > Rotary wheel

Filing statistics

CPC F24F 2203/10 belongs to the parent subclass F24F, which recorded 206,163 patent applications worldwide between 2013 and 2023. Annual filings grew from 8,591 in 2013 to 18,415 in 2023 (+114%), peaking at 24,797 applications in 2018. The most active applicants in class F24 are GREE ELECTRIC APPLIANCES (11,167 applications), QINGDAO HAIER AIR CONDITIONER COMPANY (9,225 applications) and HAIER SMART HOME (8,998 applications).

Source: EPO PATSTAT, worldwide filings

21 direct subcodes

Child Classifications

Navigate with arrow keys, Enter to open

F24F 2203/1004 Bearings or driving means
F24F 2203/1008 comprising a by-pass channel
F24F 2203/1012 Details of the casing or cover
F24F 2203/1016 combined with another type of cooling principle, e.g. compression cycle
F24F 2203/102 combined with a heat pipe
F24F 2203/1024 combined with a humidifier
F24F 2203/1028 combined with a spraying device
F24F 2203/1032 Desiccant wheel
F24F 2203/104 Heat exchanger wheel
F24F 2203/1044 performing other movements, e.g. sliding
F24F 2203/1048 Geometric details
F24F 2203/1052 comprising a non-axial air flow
F24F 2203/1056 comprising a reheater
F24F 2203/1068 comprising one rotor
F24F 2203/1072 comprising two rotors
F24F 2203/1076 comprising three rotors
F24F 2203/108 comprising rotor parts shaped in sector form
F24F 2203/1084 comprising two flow rotor segments
F24F 2203/1088 comprising three flow rotor segments
F24F 2203/1092 comprising four flow rotor segments

Top Applicants

Top 10 applicants by patent filingsfor 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