IPC Main Group
B63H 21/00 Use of propulsion power plant or units on vessels
Introduced: September 1968
Last revised: January 2006
Classification Context
- Section:
- PERFORMING OPERATIONS; TRANSPORTING
- Class:
- SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- Subclass:
- MARINE PROPULSION OR STEERING
Related Keywords
arrangement of propulsion PLANT(S) in waterborne vessels
11 direct subcodes
Child Classifications
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- B63H 21/02 the vessels being steam-driven
- B63H 21/12 the vessels being motor-driven
- B63H 21/175 the vessel being powered by land vehicle supported by vessel
- B63H 21/18 the vessels being powered by nuclear energy
- B63H 21/2 the vessels being powered by combinations of different types of propulsion units
- B63H 21/21 Control means for engine or transmission, specially adapted for use on marine vessels
- B63H 21/22 the propulsion power units being controlled from exterior of engine room, e.g. from navigation bridge; Arrangements of order telegraphs
- B63H 21/3 Mounting of propulsion plant or unit, e.g. for anti-vibration purposes
- B63H 21/32 Arrangements of propulsion power-unit exhaust uptakes; Funnels peculiar to vessels
- B63H 21/36 Covers or casing arranged to protect plant or unit from marine environment
- B63H 21/38 Apparatus or methods specially adapted for use on marine vessels, for handling power plant or unit liquids, e.g. lubricants, coolants, fuels or the like
Top Applicants
Top 10 applicants by patent filingsfor 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