B63J AUXILIARIES ON VESSELS
Description
B63J encompasses auxiliary systems and equipment installed on ships and waterborne vessels to support primary operations. This subclass covers devices for vessel propulsion assistance, maneuvering, stabilization, and onboard utilities such as anchoring systems, mooring equipment, and auxiliary power generation. The classification includes technologies for improving vessel handling, safety, and operational efficiency but excludes primary hull structures (B63B) and main propulsion machinery (B63H), which are classified separately.
Filing statistics
CPC subclass B63J recorded 11,295 patent applications worldwide between 2013 and 2023. Annual filings grew from 981 in 2013 to 1,100 in 2023 (+12%), peaking at 1,296 applications in 2022. The most active applicants in class B63 are SAMSUNG HEAVY INDUSTRIES (4,830 applications), DAEWOO SHIPBUILDING & MARINE ENGINEERING COMPANY (4,093 applications) and HYUNDAI HEAVY INDUSTRIES COMPANY (2,639 applications).
Source: EPO PATSTAT, worldwide filings
5 direct subcodes
Child Classifications
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- B63J 1/00 Arrangements of installations for producing fresh water, e.g. by evaporation and condensation of sea water
- B63J 2/00 Arrangements of ventilation, heating, cooling, or air-conditioning (for submarines B63G8/00; ventilating for cleaning tanks B63B57/04; for vehicles in general B60H)
- B63J 3/00 Driving of auxiliaries (transmission elements per se F16)
- B63J 4/00 Arrangements of installations for treating waste water, sewage, , or for preventing environmental pollution not otherwise provided for; ( soil-water discharges B63B29/16; )
- B63J 99/00 Subject matter not provided for in other groups of this subclass
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