DIFF Main Group
B63B 73/00 Building or assembling vessels or marine structures, e.g. hulls or offshore platforms
Introduced: January 2020
IPC and CPC are identically structured here. All 7 subcodes exist in both systems.
IPC defines codes here since 2020.
Child Classifications
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- B63B 73/10 Building or assembling vessels from prefabricated hull blocks, i.e. complete hull cross-sections since 2020 IPC+CPC Available in IPC and CPC
- B63B 73/20 Building or assembling prefabricated vessel modules or parts other than hull blocks, e.g. engine rooms, rudders, propellers, superstructures, berths, holds or tanks since 2020 IPC+CPC Available in IPC and CPC
- B63B 73/30 Moving or transporting modules or hull blocks to assembly sites, e.g. by rolling, lifting or floating since 2020 IPC+CPC Available in IPC and CPC
- B63B 73/50 characterised by forming methods, e.g. manufacturing of curved blocks since 2020 IPC+CPC Available in IPC and CPC
- B63B 73/60 characterised by the use of specific tools or equipment; characterised by automation, e.g. use of robots since 2020 IPC+CPC Available in IPC and CPC
- B63B 73/70 characterised by using moulds; Moulds or plugs therefor since 2020 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