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PCE
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DIFF Main Group
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 )

Introduced: September 1968

Title

Titles differ between systems:

IPC: 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

CPC: 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 )

Full Title

Full titles differ between systems:

IPC:

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

CPC:

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 and CPC are identically structured here. All 5 subcodes exist in both systems.

4 shared codes have differing titles between IPC and CPC.

Child Classifications

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  • E02C 1/02 with auxiliary basins IPC+CPC Available in IPC and CPC
  • E02C 1/04 with floating throughs IPC+CPC Available in IPC and CPC
  • E02C 1/06 Devices for filling or emptying locks (in lock gates E02B7/20 ) IPC+CPC Available in IPC and CPC
  • E02C 1/08 Arrangements for dissipating the energy of the water (carried by lock gates E02B8/06) IPC+CPC Available in IPC and CPC
  • E02C 1/10 Equipment for use in connection with the navigation of ships in locks; Mooring equipment (tying-up, anchoring waterborne vessels B63B21/00; equipment for shipping on coasts, in harbours or on other fixed marine structures E02B3/20) IPC+CPC Available in IPC and CPC

Top Applicants

Top Applicants (IPC)

Class E02,2013–2023, worldwide · Source: EPO PATSTAT

  1. KOMATSU JP 3,549
  2. CATERPILLAR US 2,893
  3. HITACHI CONSTRUCTION MACHINERY COMPANY JP 2,390
  4. HITACHI CONSTRUCTION MACHINERY COMPANY 2,340
  5. POWERCHINA HUADONG ENGINEERING CORPORATION 2,336
  6. CHINA CONSTRUCTION EIGHTH ENGINEERING DIVISION 2,174
  7. SGCC(STATE GRID CORPORATION OF CHINA) 2,119
  8. HOHAI UNIVERSITY 1,821
  9. KOMATSU 1,775
  10. POWERCHINA GUIYANG ENGINEERING CORPORATION 1,725

Top Applicants (CPC)

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