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IPC Subgroup
B63H 20/14

Transmission between propulsion power unit and propulsion element

Introduced: January 1995

Last revised: January 2006

Full Title

Outboard propulsion units, e.g. outboard motors or Z-drives; Arrangements thereof on vessels > Transmission between propulsion power unit and propulsion element

Classification Context

Section:
PERFORMING OPERATIONS; TRANSPORTING
Class:
SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
Subclass:
MARINE PROPULSION OR STEERING

4 direct subcodes

Child Classifications

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  • B63H 20/16 allowing movement of the propulsion element in a horizontal plane only, e.g. for steering
  • B63H 20/18 allowing movement of the propulsion element about a longitudinal axis, e.g. the through transom shaft
  • B63H 20/2 with provision for reverse drive
  • B63H 20/22 allowing movement of the propulsion element about at least a horizontal axis without disconnection of the drive, e.g. using universal joints

Top Applicants

Top 10 applicants by patent filingsfor class B63, 2013–2023, worldwide · Source: EPO PATSTAT

  1. SAMSUNG HEAVY INDUSTRIES KR 5,719
  2. DAEWOO SHIPBUILDING & MARINE ENGINEERING COMPANY KR 4,684
  3. HYUNDAI HEAVY INDUSTRIES COMPANY KR 3,015
  4. ZHEJIANG OCEAN UNIVERSITY 1,359
  5. HUDONG-ZHONGHUA SHIPBUILDING (GROUP) COMPANY 1,221
  6. HARBIN ENGINEERING UNIVERSITY 1,175
  7. SHANGHAI WAIGAOQIAO SHIPBUILDING COMPANY 1,129
  8. CSSC HUANGPU WENCHONG SHIPBUILDING COMPANY 1,113
  9. GUANGZHOU SHIPYARD INTERNATIONAL COMPANY 1,073
  10. JIANGSU UNIVERSITY OF SCIENCE AND TECHNOLOGY 963