B63H MARINE PROPULSION OR STEERING
Introduced: September 1968
Classification Context
- Section:
- PERFORMING OPERATIONS; TRANSPORTING
- Class:
- SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- Subclass:
- MARINE PROPULSION OR STEERING
Description
B63H encompasses propulsion and steering systems for waterborne vessels, including propellers, screws, jets, paddle wheels, and rudders. The class covers the mechanical and hydrodynamic design of marine propulsion devices, steering mechanisms, and associated control systems. This includes arrangements for mounting propulsion units, thrust transmission, and directional control of ships and other water-based craft. Adjacent classes address hull design (B63B), vessel-specific systems (B63C), and related marine equipment, while B63H focuses specifically on the propulsion and steering functionalities themselves.
Filing statistics
IPC subclass B63H recorded 46,736 patent applications worldwide between 2013 and 2023. Annual filings grew from 3,295 in 2013 to 5,025 in 2023 (+53%), peaking at 5,239 applications in 2022. The most active applicants in class B63 are SAMSUNG HEAVY INDUSTRIES (5,719 applications), DAEWOO SHIPBUILDING & MARINE ENGINEERING COMPANY (4,684 applications) and HYUNDAI HEAVY INDUSTRIES COMPANY (3,015 applications).
Source: EPO PATSTAT, worldwide filings
Related Keywords
15 direct subcodes
Child Classifications
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- B63H 1/00 Propulsive elements directly acting on water
- B63H 11/00 Marine propulsion by water jets
- B63H 13/00 Marine propulsion by wind motors driving water-engaging propulsive elements
- B63H 15/00 Marine propulsion by use of vessel-mounted driving mechanisms co-operating with anchored chains or the like
- B63H 16/00 Marine propulsion by muscle power
- B63H 19/00 Marine propulsion not otherwise provided for
- B63H 20/00 Outboard propulsion units, e.g. outboard motors or Z-drives; Arrangements thereof on vessels
- B63H 21/00 Use of propulsion power plant or units on vessels
- B63H 23/00 Transmitting power from propulsion power plant to propulsive elements
- B63H 25/00 Steering; Slowing-down otherwise than by use of propulsive elements; Dynamic anchoring, i.e. positioning vessels by means of main or auxiliary propulsive elements
- B63H 3/00 Propeller-blade pitch changing
- B63H 5/00 Arrangements on vessels of propulsion elements directly acting on water
- B63H 7/00 Propulsion directly actuated on air
- B63H 8/00 Sail or rigging arrangements specially adapted for water sports boards, e.g. for windsurfing or kitesurfing
- B63H 9/00 Marine propulsion provided directly by wind power
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