SHIP-LIFTING DEVICES OR MECHANISMS

Description

E02C covers mechanical and hydraulic systems designed to lift, raise, or vertically transport ships and vessels. This includes ship lifts, drydocks, floating docks, and related infrastructure mechanisms that enable vessels to be removed from water for maintenance, repair, or transfer between water levels. The classification encompasses the structural design, operational mechanisms, and control systems of such devices, whether powered by hydraulics, electricity, or other means. Adjacent classes address general hydraulic engineering (E02D), foundation work (E02B), and specific water transport infrastructure.

Filing statistics

CPC subclass E02C recorded 759 patent applications worldwide between 2013 and 2023. Annual filings grew from 23 in 2013 to 83 in 2023 (+261%), peaking at 131 applications in 2020. The most active applicants in class E02 are KOMATSU (3,939 applications), CATERPILLAR (3,490 applications) and HITACHI CONSTRUCTION MACHINERY COMPANY (2,553 applications).

Source: EPO PATSTAT, worldwide filings