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IPC Main Group
B63B 39/00

Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude

Introduced: September 1968

Last revised: January 2006

Classification Context

Section:
PERFORMING OPERATIONS; TRANSPORTING
Class:
SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
Subclass:
SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING

Additional Content

Pitch The rotary motion of a vessel about its transverse axis. Roll The rotary movement of a vessel about its longitudinal axis.

Related Keywords

ATTITUDE indicators for ships(4) decreasing PITCH of waterborne vesselsdecreasing ROLL(S) of waterborne vessels

7 direct subcodes

Child Classifications

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  • B63B 39/04 to decrease vessel movements by using gyroscopes directly
  • B63B 39/06 to decrease vessel movements by using foils acting on ambient water
  • B63B 39/08 to decrease vessel movements by using auxiliary jets or propellers
  • B63B 39/1 to decrease vessel movements by damping the waves, e.g. by pouring oil on water
  • B63B 39/12 for indicating draught or load
  • B63B 39/14 for indicating inclination or duration of roll

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