IPC Main Group
B63B 19/00 Arrangements or adaptations of ports, doors, windows, port-holes, or other openings or covers
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
Porthole portholes A typically circular window in the side of a boat or ship.
Related Keywords
PORTHOLES arranged on or adapted for waterborne vesselscalming the SEA
4 direct subcodes
Child Classifications
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- B63B 19/02 Windows specially adapted for ships or other waterborne vessels, e.g. clear-view screens or portholes
- B63B 19/04 Air-catching equipment related to windows or port-holes
- B63B 19/08 Ports or like openings in vessels' sides
- B63B 19/12 Hatches; Hatchways
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