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CPC Subgroup
B63J 2/02

Ventilation; Air-conditioning

Full Title

Arrangements of ventilation, heating, cooling, or air-conditioning (for submarines B63G8/00; ventilating for cleaning tanks B63B57/04; for vehicles in general B60H) > Ventilation; Air-conditioning

4 direct subcodes

Child Classifications

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  • B63J 2/04 of living spaces
  • B63J 2/06 of engine rooms
  • B63J 2/08 of holds (heating or cooling of liquid-freight-carrying tanks B63J2/14; arrangements for stowing frozen goods in vessels B63B25/26)
  • B63J 2/10 Ventilating-shafts; Air-scoops (for port-holes B63B19/04)

Top Applicants

Top 10 applicants by patent filingsfor class B63, 2013–2023, worldwide · Source: EPO PATSTAT

  1. SAMSUNG HEAVY INDUSTRIES KR 4,830
  2. DAEWOO SHIPBUILDING & MARINE ENGINEERING COMPANY KR 4,093
  3. HYUNDAI HEAVY INDUSTRIES COMPANY KR 2,639
  4. GAZ TRANSPORT ET TECHNIGAZ FR 1,037
  5. SHANGHAI WAIGAOQIAO SHIPBUILDING COMPANY 827
  6. HARBIN ENGINEERING UNIVERSITY 811
  7. GUANGZHOU SHIPYARD INTERNATIONAL COMPANY 808
  8. HUDONG-ZHONGHUA SHIPBUILDING (GROUP) COMPANY 784
  9. YAMAHA MOTOR COMPANY JP 731
  10. THYSSEN KRUPP DE 727