D06F 33/30 Control of washing machines characterised by the purpose or target of the control (controlling processes of washer-dryers D06F33/50)
Full Title
Control of operations performed in washing machines or washer-dryers (D06F31/00 takes precedence; details of control systems therefor D06F34/00; control of operations performed in domestic laundry dryers D06F58/32) > Control of washing machines characterised by the purpose or target of the control (controlling processes of washer-dryers D06F33/50)
Filing statistics
CPC D06F 33/30 belongs to the parent subclass D06F, which recorded 79,336 patent applications worldwide between 2013 and 2023. Annual filings grew from 5,117 in 2013 to 6,670 in 2023 (+30%), peaking at 9,018 applications in 2018. The most active applicants in class D06 are LG ELECTRONICS (7,955 applications), QINGDAO HAIER WASHING MACHINE COMPANY (7,190 applications) and HAIER SMART HOME (5,471 applications).
Source: EPO PATSTAT, worldwide filings
6 direct subcodes
Child Classifications
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- D06F 33/32 Control of operational steps, e.g. optimisation or improvement of operational steps depending on the condition of the laundry
- D06F 33/43 Control of cleaning or disinfection of washing machine parts, e.g. of tubs
- D06F 33/44 Control of the operating time, e.g. reduction of overall operating time
- D06F 33/46 Control of the energy or water consumption
- D06F 33/47 Responding to irregular working conditions, e.g. malfunctioning of pumps (safety arrangements D06F37/42)
- D06F 33/48 Preventing or reducing imbalance or noise
Top Applicants
Top 10 applicants by patent filingsfor class D06, 2013–2023, worldwide · Source: EPO PATSTAT
- LG ELECTRONICS KR 7,955
- QINGDAO HAIER WASHING MACHINE COMPANY 7,190
- HAIER SMART HOME 5,471
- QINGDAO HAIER WASHING MACHINE COMPANY CN 2,962
- BSH (BOSCH UND SIEMENS HAUSGERAETE) DE 2,870
- WUXI LITTLE SWAN COMPANY 2,869
- SAMSUNG ELECTRONICS COMPANY KR 2,731
- MIELE DE 1,371
- WHIRLPOOL CORPORATION US 1,285
- ELECTROLUX APPLIANCES SE 1,261