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IPC Subgroup
B63B 3/64

Keelsons

Introduced: September 1968

Last revised: January 2006

Full Title

Hulls characterised by their structure or component parts > Hull parts > Double bottoms; Tank tops > Keelsons

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

Keelson Keelsons A longitudinal structural member secured to the keel and arranged parallel to the keel and above the transverse members such as timbers, frames or floors to increase longitudinal strength and rigidity, and to bind the keel to the transverse members.

Related Keywords

KEELSONS

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