DIFF Main Group
E01B 11/00 Rail joints (electrical connection of the rail B60M5/00)
Introduced: September 1968
Title
Titles differ between systems:
IPC: Rail joints
CPC: Rail joints (electrical connection of the rail B60M5/00)
Full Title
Full titles differ between systems:
IPC:
Rail joints
CPC:
Rail joints (electrical connection of the rail B60M5/00)
IPC and CPC are identically structured here. All 5 subcodes exist in both systems.
2 shared codes have differing titles between IPC and CPC.
Child Classifications
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- E01B 11/42 Joint constructions for relatively movable rails, e.g. rails on turntables, traversers, or swing bridges IPC+CPC Available in IPC and CPC
- E01B 11/44 Non-dismountable rail joints; Welded joints (welding methods B23K) IPC+CPC Available in IPC and CPC
- E01B 11/56 Special arrangements for supporting rail ends (foot supports E01B11/08 - E01B11/14) IPC+CPC Available in IPC and CPC
Top Applicants
Top Applicants (IPC)
Class E01,2013–2023, worldwide · Source: EPO PATSTAT
- CHINA RAILWAY SIYUAN SURVEY AND DESIGN GROUP COMPANY 2,096
- CHANG AN UNIVERSITY 1,878
- ROAD & BRIDGE INTERNATIONAL COMPANY 1,796
- CREEC (CHINA RAILWAY ERYUAN ENGINEERING GROUP) 1,493
- CHINA RAILWAY MAJOR BRIDGE ENGINEERING GROUP COMPANY 1,327
- CCCC FIRST HIGHWAY ENGINEERING GROUP COMPANY 1,133
- CCCC SECOND HARBOUR ENGINEERING COMPANY 1,029
- PLASSER & THEURER EXPORT VON BAHNBAUMASCHINEN AT 935
- TONGJI UNIVERSITY 899
- CATERPILLAR PAVING PRODUCTS US 868
Top Applicants (CPC)
Class E01,2013–2023, worldwide · Source: EPO PATSTAT
- PLASSER & THEURER EXPORT VON BAHNBAUMASCHINEN AT 998
- CATERPILLAR PAVING PRODUCTS US 937
- CHINA RAILWAY SIYUAN SURVEY AND DESIGN GROUP COMPANY 869
- WIRTGEN DE 740
- CHINA RAILWAY MAJOR BRIDGE ENGINEERING GROUP COMPANY 685
- CHANG AN UNIVERSITY 615
- CREEC (CHINA RAILWAY ERYUAN ENGINEERING GROUP) 613
- SOUTHEAST UNIVERSITY 562
- TONGJI UNIVERSITY 500
- ROAD & BRIDGE INTERNATIONAL COMPANY 491