CPC Subgroup
B63B 43/10 by improving buoyancy
Full Title
Improving safety of vessels, e.g. damage control, not otherwise provided for (fire-fighting in ships A62C3/10) > reducing risk of capsizing or sinking (by means of watertight doors in bulkheads B63B43/24) > by improving buoyancy
3 direct subcodes
Child Classifications
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- B63B 43/12 using inboard air containers
- B63B 43/14 using outboard floating members
- B63B 43/16 Temporary equipment for stopping leaks, e.g. collision mats
Top Applicants
Top 10 applicants by patent filingsfor class B63, 2013–2023, worldwide · Source: EPO PATSTAT
- SAMSUNG HEAVY INDUSTRIES KR 4,830
- DAEWOO SHIPBUILDING & MARINE ENGINEERING COMPANY KR 4,093
- HYUNDAI HEAVY INDUSTRIES COMPANY KR 2,639
- GAZ TRANSPORT ET TECHNIGAZ FR 1,037
- SHANGHAI WAIGAOQIAO SHIPBUILDING COMPANY 827
- HARBIN ENGINEERING UNIVERSITY 811
- GUANGZHOU SHIPYARD INTERNATIONAL COMPANY 808
- HUDONG-ZHONGHUA SHIPBUILDING (GROUP) COMPANY 784
- YAMAHA MOTOR COMPANY JP 731
- THYSSEN KRUPP DE 727