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CPC Subclass Not Allocatable
F24H

FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL (steam generation F22)

Description

F24H encompasses fluid heating systems that generate heat through active means such as heat pumps, combustion, or electrical resistance to warm water, air, or other fluids for space heating, domestic hot water, and industrial applications. The subclass covers the overall design, integration, and operation of heater units combining heat sources with heat transfer mechanisms, including heat distribution networks and control systems. This classification excludes specific combustion chamber designs (covered in F23), dedicated heat exchanger elements (F28), and refrigeration cycles when classified outside heating contexts (F25). Related heating technologies employing passive solar collection or waste heat recovery are separately classified in their respective technology areas.

13 direct subcodes

Child Classifications

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  • F24H 2210/00 Burner and heat exchanger are integrated
  • F24H 2220/00 Measures for environmentally correct disposal
  • F24H 6/00 Combined water and air heaters

Top Applicants

Top 10 applicants by patent filingsfor 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