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 35/03 Pipe-laying vessels (laying pipes under water F16L1/12) since 1990 IPC+CPC Available in IPC and CPC
- B63B 35/44 Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices +9 CPC IPC+CPC Available in IPC and CPC
- B63B 35/50 Vessels or floating structures for aircraft (aircraft carriers B63G11/00; flying-boat hulls, other flotation means for aircraft B64) IPC+CPC Available in IPC and CPC
- B63B 35/58 Rafts, i.e. free floating waterborne vessels, of shallow draft, with little or no freeboard, and having a platform or floor for supporting a user (lifeboats, life-rafts or the like B63C9/02) IPC+CPC Available in IPC and CPC
Top Applicants
Top Applicants (IPC)
Class B63,2013–2023, worldwide · Source: EPO PATSTAT
- SAMSUNG HEAVY INDUSTRIES KR 5,719
- DAEWOO SHIPBUILDING & MARINE ENGINEERING COMPANY KR 4,684
- HYUNDAI HEAVY INDUSTRIES COMPANY KR 3,015
- ZHEJIANG OCEAN UNIVERSITY 1,359
- HUDONG-ZHONGHUA SHIPBUILDING (GROUP) COMPANY 1,221
- HARBIN ENGINEERING UNIVERSITY 1,175
- SHANGHAI WAIGAOQIAO SHIPBUILDING COMPANY 1,129
- CSSC HUANGPU WENCHONG SHIPBUILDING COMPANY 1,113
- GUANGZHOU SHIPYARD INTERNATIONAL COMPANY 1,073
- JIANGSU UNIVERSITY OF SCIENCE AND TECHNOLOGY 963
Top Applicants (CPC)
Class B63,2013–2023, worldwide · Source: EPO PATSTAT
- SAMSUNG HEAVY INDUSTRIES KR 4,830
- DAEWOO SHIPBUILDING & MARINE ENGINEERING COMPANY KR 4,093
- HYUNDAI HEAVY INDUSTRIES COMPANY KR 2,639
- GAZ TRANSPORT ET TECHNIGAZ FR 1,037
- SHANGHAI WAIGAOQIAO SHIPBUILDING COMPANY 827
- HARBIN ENGINEERING UNIVERSITY 811
- GUANGZHOU SHIPYARD INTERNATIONAL COMPANY 808
- HUDONG-ZHONGHUA SHIPBUILDING (GROUP) COMPANY 784
- YAMAHA MOTOR COMPANY JP 731
- THYSSEN KRUPP DE 727