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CPC Subgroup
F24S 40/50

Preventing overheating or overpressure (by draining the working fluid F24S40/60)

Full Title

Safety or protection arrangements of solar heat collectors; Preventing malfunction of solar heat collectors (control arrangements F24S50/00) > Preventing overheating or overpressure (by draining the working fluid F24S40/60)

5 direct subcodes

Child Classifications

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  • F24S 40/52 by modifying the heat collection, e.g. by defocusing or by changing the position of heat-receiving elements
  • F24S 40/53 by venting solar heat collector enclosures
  • F24S 40/55 Arrangements for cooling, e.g. by using external heat dissipating means or internal cooling circuits (by venting F24S40/53)
  • F24S 40/57 Preventing overpressure in solar collector enclosures (by venting F24S40/53)
  • F24S 40/58 Preventing overpressure in working fluid circuits

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