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PCE
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DIFF Subgroup
B63J 2/02

Ventilation; Air-conditioning

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Arrangements of ventilation, heating, cooling, or air-conditioning > Ventilation; Air-conditioning

CPC:

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

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

2 shared codes have differing titles between IPC and CPC.

Child Classifications

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

Top Applicants

Top Applicants (IPC)

Class B63,2013–2023, worldwide · Source: EPO PATSTAT

  1. SAMSUNG HEAVY INDUSTRIES KR 5,719
  2. DAEWOO SHIPBUILDING & MARINE ENGINEERING COMPANY KR 4,684
  3. HYUNDAI HEAVY INDUSTRIES COMPANY KR 3,015
  4. ZHEJIANG OCEAN UNIVERSITY 1,359
  5. HUDONG-ZHONGHUA SHIPBUILDING (GROUP) COMPANY 1,221
  6. HARBIN ENGINEERING UNIVERSITY 1,175
  7. SHANGHAI WAIGAOQIAO SHIPBUILDING COMPANY 1,129
  8. CSSC HUANGPU WENCHONG SHIPBUILDING COMPANY 1,113
  9. GUANGZHOU SHIPYARD INTERNATIONAL COMPANY 1,073
  10. JIANGSU UNIVERSITY OF SCIENCE AND TECHNOLOGY 963

Top Applicants (CPC)

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