F24V COLLECTION, PRODUCTION OR USE OF HEAT NOT OTHERWISE PROVIDED FOR
Introduced: January 2018
Classification Context
- Section:
- MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- Class:
- HEATING; RANGES; VENTILATING
- Subclass:
- COLLECTION, PRODUCTION OR USE OF HEAT NOT OTHERWISE PROVIDED FOR
Description
F24V covers heat collection, production, and utilization applications that do not fall under more specific heating classifications within F24. This subclass encompasses residual heat recovery from industrial processes, waste heat utilization systems, and unconventional heat generation methods not covered by dedicated F24 groups for combustion heating, electric heating, or heat pumps. It typically includes technologies for capturing and repurposing thermal energy from exhaust streams, thermal storage systems designed for heat management, and composite heating arrangements combining multiple heat sources. The scope excludes mainstream heating systems already classified in F24B–F24T and focuses on supplementary or innovative heat-related technologies requiring dedicated patent classification.
Filing statistics
IPC subclass F24V recorded 2,265 patent applications worldwide between 2013 and 2023. Annual filings declined from 276 in 2013 to 144 in 2023 (-48%). The most active applicants in class F24 are MIDEA (21,834 applications), GREE ELECTRIC APPLIANCES (21,535 applications) and GUANGDONG MIDEA REFRIGERATION EQUIPMENT COMPANY (20,870 applications).
Source: EPO PATSTAT, worldwide filings
In class comparison
F24V ranks 9th of 9 subclasses with filings in F24, with 2,265 applications between 2013 and 2023, 0.3% of the class. Annual filings declined 48% from 2013 to 2023, below the class as a whole (+83%).
| Rank | Subclass | Title | Applications | Share |
|---|---|---|---|---|
| 1 | F24F, Air-Conditioning; Air-Humidification; Ventilation; Use of Air Currents for Screening | Air-Conditioning; Air-Humidification; Ventilation; Use of Air Currents for Screening | 427,113 | 49.1% |
| 2 | F24H, Fluid Heaters, e.g. Water or Air Heaters, Having Heat-Generating Means, e.g. Heat Pumps, in General | Fluid Heaters, e.g. Water or Air Heaters, Having Heat-Generating Means, e.g. Heat Pumps, in General | 123,801 | 14.2% |
| 3 | F24C, Domestic Stoves or Ranges; Details of Domestic Stoves or Ranges, of General Application | Domestic Stoves or Ranges; Details of Domestic Stoves or Ranges, of General Application | 116,007 | 13.3% |
| 4 | F24D, Domestic- or Space-Heating Systems, e.g. Central Heating Systems; Domestic Hot-Water Supply Systems; Elements or Components Therefor | Domestic- or Space-Heating Systems, e.g. Central Heating Systems; Domestic Hot-Water Supply Systems; Elements or Components Therefor | 88,434 | 10.2% |
| 5 | F24S, Solar Heat Collectors; Solar Heat Systems | Solar Heat Collectors; Solar Heat Systems | 72,075 | 8.3% |
| 6 | F24J | 21,125 | 2.4% | |
| 7 | F24B, Domestic Stoves or Ranges for Solid Fuels; Implements for Use in Connection With Stoves or Ranges | Domestic Stoves or Ranges for Solid Fuels; Implements for Use in Connection With Stoves or Ranges | 12,566 | 1.4% |
| 8 | F24T, Geothermal Collectors; Geothermal Systems | Geothermal Collectors; Geothermal Systems | 6,275 | 0.7% |
| 9 | F24V | Collection, Production or Use of Heat Not Otherwise Provided for | 2,265 | 0.3% |
Source: EPO PATSTAT, worldwide filings
4 direct subcodes
Child Classifications
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- F24V 30/00 Apparatus or devices using heat produced by exothermal chemical reactions other than by combustion
- F24V 40/00 Production or use of heat resulting from internal friction of moving fluids or from friction between fluids and moving bodies
- F24V 50/00 Use of heat from natural sources, e.g. from the sea
- F24V 99/00 Subject matter not provided for in other main groups of this subclass
Top Applicants
Top 10 applicants by patent filingsfor 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