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DIFF Main Group
B63B 35/00

Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for

Introduced: September 1968

Additional Content IPC

Pontoon Pontoons A stationary floating structure, typically used for support purposes, e.g. landing stages.

Of 21 combined children, 14 exist in both systems.

7 codes are CPC-only extensions.

Note: 6 CPC extensions are marked as secondary classification only.

8 shared codes have differing titles between IPC and CPC.

Child Classifications

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  • B63B 2035/001 2nd only CPC only CPC only
  • B63B 2035/002 2nd only CPC only CPC only
  • B63B 2035/004 2nd only CPC only CPC only
  • B63B 2035/005 2nd only CPC only CPC only
  • B63B 2035/009 2nd only CPC only CPC only
  • B63B 35/003 CPC only CPC only
  • B63B 35/03 Pipe-laying vessels (laying pipes under water F16L1/12) since 1990 IPC+CPC Available in IPC and CPC
  • B63B 35/32 for collecting pollution from open water IPC+CPC Available in IPC and CPC
  • B63B 35/54 Ferries (propulsion of chain ferries B63H) IPC+CPC Available in IPC and CPC
  • B63B 35/56 Lightships (marking of navigational route B63B51/00) 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