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DIFF Subclass Not Allocatable
F24V

COLLECTION, PRODUCTION OR USE OF HEAT NOT OTHERWISE PROVIDED FOR

Introduced: January 2018

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.

IPC and CPC are identically structured here. All 4 subcodes exist in both systems.

1 shared codes have differing titles between IPC and CPC.

IPC defines codes here since 2018.

Child Classifications

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  • F24V 30/00 Apparatus or devices using heat produced by exothermal chemical reactions other than combustion since 2018 IPC+CPC Available in IPC and CPC
  • F24V 50/00 Use of heat from natural sources, e.g. from the sea since 2018 IPC+CPC Available in IPC and CPC
  • F24V 99/00 Subject matter not provided for in other main groups of this subclass since 2018 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