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CPC Subgroup
B63G 8/16

by direct use of propellers or jets

Full Title

Underwater vessels, e.g. submarines; (submarine hulls B63B3/13; diving chambers with mechanical link, e.g. cable, to a base B63C11/34; divers' sleds B63C11/46; torpedoes F42B19/00) > Control of attitude or depth (of torpedoes F42B19/00) > by direct use of propellers or jets

Filing statistics

CPC B63G 8/16 belongs to the parent subclass B63G, which recorded 11,774 patent applications worldwide between 2013 and 2023. Annual filings grew from 681 in 2013 to 1,218 in 2023 (+79%), peaking at 1,275 applications in 2020. 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

Top Applicants

Top 10 applicants by patent filingsfor class B63, 2013–2023, worldwide · Source: EPO PATSTAT

  1. SAMSUNG HEAVY INDUSTRIES KR 4,830
  2. DAEWOO SHIPBUILDING & MARINE ENGINEERING COMPANY KR 4,093
  3. HYUNDAI HEAVY INDUSTRIES COMPANY KR 2,639
  4. GAZ TRANSPORT ET TECHNIGAZ FR 1,037
  5. SHANGHAI WAIGAOQIAO SHIPBUILDING COMPANY 827
  6. HARBIN ENGINEERING UNIVERSITY 811
  7. GUANGZHOU SHIPYARD INTERNATIONAL COMPANY 808
  8. HUDONG-ZHONGHUA SHIPBUILDING (GROUP) COMPANY 784
  9. YAMAHA MOTOR COMPANY JP 731
  10. THYSSEN KRUPP DE 727