Swinging or turning gates

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Barrages or weirs; Layout, construction, methods of, or devices for, making same > Movable barrages; Lock gates > Swinging or turning gates

CPC:

Barrages or weirs; Layout, construction, methods of, or devices for, making same (for protecting banks, coasts, or harbours E02B3/04; sealings or joints E02B3/16; handling building or like materials for hydraulic engineering E02D15/00; foundations in general E02D27/00) > Movable barrages; Lock gates > Swinging or turning gates

IPC and CPC are identically structured here. All 4 subcodes exist in both systems.

Child Classifications

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E02B 7/42 Gates of segmental or sector-like shape with horizontal axis IPC+CPC Available in IPC and CPC
E02B 7/44 Hinged-leaf gates IPC+CPC Available in IPC and CPC
E02B 7/46 Gates turning round a horizontal axis arranged midway of the flap IPC+CPC Available in IPC and CPC
E02B 7/48 Roof or double shutter gates 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