DIFF Subgroup
B63H 21/12 the vessels being motor-driven (B63H21/175, B63H21/18 take precedence; )
Introduced: September 1968
Title
Titles differ between systems:
IPC: the vessels being motor-driven
CPC: the vessels being motor-driven (B63H21/175, B63H21/18 take precedence; )
Full Title
Full titles differ between systems:
IPC:
Use of propulsion power plant or units on vessels > the vessels being motor-driven
CPC:
Use of propulsion power plant or units on vessels > the vessels being motor-driven (B63H21/175, B63H21/18 take precedence; )
IPC and CPC are identically structured here. All 4 subcodes exist in both systems.
Child Classifications
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- B63H 21/165 by hydraulic fluid motor, i.e. wherein a liquid under pressure is utilised to rotate the propelling means since 1985 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