IPC Subgroup
B63G 8/14 Control of attitude or depth
Introduced: September 1968
Last revised: January 2006
Full Title
Underwater vessels, e.g. submarines > Control of attitude or depth
Classification Context
- Section:
- PERFORMING OPERATIONS; TRANSPORTING
- Class:
- SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- Subclass:
- OFFENSIVE OR DEFENSIVE ARRANGEMENTS ON VESSELS; MINE-LAYING; MINE-SWEEPING; SUBMARINES; AIRCRAFT CARRIERS
6 direct subcodes
Child Classifications
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- B63G 8/16 by direct use of propellers or jets
- B63G 8/18 by hydroplanes
- B63G 8/2 Steering equipment
- B63G 8/22 Adjustment of buoyancy by water ballasting; Emptying equipment for ballast tanks
- B63G 8/24 Automatic depth adjustment; Safety equipment for increasing buoyancy, e.g. detachable ballast, floating bodies
- B63G 8/26 Trimming equipment
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