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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

Filing statistics

CPC B63J 2/02 belongs to the parent subclass B63J, which recorded 11,295 patent applications worldwide between 2013 and 2023. Annual filings grew from 981 in 2013 to 1,100 in 2023 (+12%), peaking at 1,296 applications in 2022. The most active applicants in class B63 are SAMSUNG HEAVY INDUSTRIES (4,830 applications), DAEWOO SHIPBUILDING & MARINE ENGINEERING COMPANY (4,093 applications) and HYUNDAI HEAVY INDUSTRIES COMPANY (2,639 applications).

Source: EPO PATSTAT, worldwide filings

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