E02C SHIP-LIFTING DEVICES OR MECHANISMS
Introduced: September 1968
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.
IPC and CPC are identically structured here. All 3 subcodes exist in both systems.
2 shared codes have differing titles between IPC and CPC.
Child Classifications
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- E02C 1/00 Locks ; Shaft locks, i.e. locks of which one front side is formed by a solid wall with an opening in the lower part through which the ships pass (lock gates E02B7/20 ) IPC+CPC Available in IPC and CPC
- E02C 5/00 Mechanisms for lifting ships vertically (salvaging sunken vessels B63C7/00) IPC+CPC Available in IPC and CPC
Top Applicants
Top Applicants (IPC)
Class E02,2013–2023, worldwide · Source: EPO PATSTAT
- KOMATSU JP 3,549
- CATERPILLAR US 2,893
- HITACHI CONSTRUCTION MACHINERY COMPANY JP 2,390
- HITACHI CONSTRUCTION MACHINERY COMPANY 2,340
- POWERCHINA HUADONG ENGINEERING CORPORATION 2,336
- CHINA CONSTRUCTION EIGHTH ENGINEERING DIVISION 2,174
- SGCC(STATE GRID CORPORATION OF CHINA) 2,119
- HOHAI UNIVERSITY 1,821
- KOMATSU 1,775
- POWERCHINA GUIYANG ENGINEERING CORPORATION 1,725
Top Applicants (CPC)
Class E02,2013–2023, worldwide · Source: EPO PATSTAT
- KOMATSU JP 3,939
- CATERPILLAR US 3,490
- HITACHI CONSTRUCTION MACHINERY COMPANY JP 2,553
- KOMATSU 1,789
- JOHN DEERE US 1,277
- HITACHI CONSTRUCTION MACHINERY COMPANY 1,102
- KOBELCO CONSTRUCTION MACHINERY COMPANY JP 1,014
- HOHAI UNIVERSITY 975
- CHINA MCC17 GROUP COMPANY 810
- VOLVO CONSTRUCTION EQUIPMENT SE 787