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CPC Subclass Not Allocatable
E02C

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.

3 direct subcodes

Child Classifications

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  • E02C 3/00 Inclined-plane ship-lifting mechanisms

Top Applicants

Top 10 applicants by patent filingsfor class E02, 2013–2023, worldwide · Source: EPO PATSTAT

  1. KOMATSU JP 3,939
  2. CATERPILLAR US 3,490
  3. HITACHI CONSTRUCTION MACHINERY COMPANY JP 2,553
  4. KOMATSU 1,789
  5. JOHN DEERE US 1,277
  6. HITACHI CONSTRUCTION MACHINERY COMPANY 1,102
  7. KOBELCO CONSTRUCTION MACHINERY COMPANY JP 1,014
  8. HOHAI UNIVERSITY 975
  9. CHINA MCC17 GROUP COMPANY 810
  10. VOLVO CONSTRUCTION EQUIPMENT SE 787