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IPC Subgroup
F24S 40/4

Preventing corrosion; Protecting against dirt or contamination

Introduced: January 2018

Full Title

Safety or protection arrangements of solar heat collectors; Preventing malfunction of solar heat collectors > Preventing corrosion; Protecting against dirt or contamination

Classification Context

Section:
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
Class:
HEATING; RANGES; VENTILATING
Subclass:
SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS

4 direct subcodes

Child Classifications

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  • F24S 40/42 Preventing condensation inside solar modules
  • F24S 40/44 Draining rainwater or condensation
  • F24S 40/46 Maintaining vacuum, e.g. by using getters
  • F24S 40/48 Deaerating or degassing the working fluid

Top Applicants

Top 10 applicants by patent filingsfor 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