E02F 3/90 Component parts
Introduced: September 1968
Title
Titles differ between systems:
IPC: Component parts, e.g. drives, control devices
CPC: Component parts
Full Title
Full titles differ between systems:
Dredgers; Soil-shifting machines > mechanically-driven > with arrangements acting by a sucking or forcing effect, e.g. suction dredgers > Component parts, e.g. drives, control devices
Dredgers; Soil-shifting machines (for special purposes E02F5/00; other machines or apparatus for mining E21C; tunnelling E21D) > mechanically-driven > with arrangements acting by a sucking or forcing effect, e.g. suction dredgers (pumps in general F04) > Component parts
CPC subdivides this area 3x more granularly than IPC with 3 additional codes.
3 codes are CPC-only extensions.
Child Classifications
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- E02F 3/94 Apparatus for separating stones from the dredged material +1 CPC 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