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DIFF Subgroup
F24H 15/20

characterised by control inputs

Introduced: January 2022

Full Title

Control of fluid heaters > characterised by control inputs

IPC and CPC are identically structured here. All 20 subcodes exist in both systems.

IPC defines codes here since 2022.

Child Classifications

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  • F24H 15/204 Temperature of the air before heating since 2022 IPC+CPC Available in IPC and CPC
  • F24H 15/208 Temperature of the air after heating since 2022 IPC+CPC Available in IPC and CPC
  • F24H 15/235 Temperature of exhaust gases since 2022 IPC+CPC Available in IPC and CPC
  • F24H 15/238 Flow rate since 2022 IPC+CPC Available in IPC and CPC
  • F24H 15/242 Pressure since 2022 IPC+CPC Available in IPC and CPC
  • F24H 15/25 Temperature of the heat-generating means in the heater since 2022 IPC+CPC Available in IPC and CPC
  • F24H 15/254 Room temperature since 2022 IPC+CPC Available in IPC and CPC
  • F24H 15/258 Outdoor temperature since 2022 IPC+CPC Available in IPC and CPC
  • F24H 15/262 Weather information or forecast since 2022 IPC+CPC Available in IPC and CPC
  • F24H 15/265 Occupancy since 2022 IPC+CPC Available in IPC and CPC
  • F24H 15/269 Time, e.g. hour or date since 2022 IPC+CPC Available in IPC and CPC
  • F24H 15/273 Address or location since 2022 IPC+CPC Available in IPC and CPC
  • F24H 15/277 Price since 2022 IPC+CPC Available in IPC and CPC
  • F24H 15/281 Input from user since 2022 IPC+CPC Available in IPC and CPC
  • F24H 15/288 Accumulation of deposits, e.g. lime or scale since 2022 IPC+CPC Available in IPC and CPC
  • F24H 15/292 Metering of electricity sold to the grid since 2022 IPC+CPC Available in IPC and CPC
  • F24H 15/296 Information from neighbouring devices since 2022 IPC+CPC Available in IPC and CPC

Top Applicants

Top Applicants (IPC)

Class F24,2013–2023, worldwide · Source: EPO PATSTAT

  1. MIDEA 21,834
  2. GREE ELECTRIC APPLIANCES 21,535
  3. GUANGDONG MIDEA REFRIGERATION EQUIPMENT COMPANY 20,870
  4. QINGDAO HAIER AIR CONDITIONER COMPANY 15,443
  5. HAIER SMART HOME 15,442
  6. QINGDAO HAIER AIR CONDITIONER ELECTRIC COMPANY 10,008
  7. AUX AIR CONDITIONING COMPANY 7,723
  8. NINGBO AUX ELECTRIC COMPANY 7,499
  9. NINGBO FOTILE KITCHENWARE COMPANY 6,712
  10. LG ELECTRONICS KR 6,441

Top Applicants (CPC)

Class F24,2013–2023, worldwide · Source: EPO PATSTAT

  1. GREE ELECTRIC APPLIANCES 11,167
  2. QINGDAO HAIER AIR CONDITIONER COMPANY 9,225
  3. HAIER SMART HOME 8,998
  4. MIDEA 8,874
  5. GUANGDONG MIDEA REFRIGERATION EQUIPMENT COMPANY 8,724
  6. LG ELECTRONICS KR 7,258
  7. MITSUBISHI ELECTRIC CORPORATION JP 7,009
  8. QINGDAO HAIER AIR CONDITIONER ELECTRIC COMPANY 6,104
  9. BSH (BOSCH UND SIEMENS HAUSGERAETE) DE 3,544
  10. NINGBO AUX ELECTRIC COMPANY 3,302