CPC Main Group
E01B 11/00 Rail joints (electrical connection of the rail B60M5/00)
5 direct subcodes
Child Classifications
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- E01B 11/02 Dismountable rail joints
- E01B 11/42 Joint constructions for relatively movable rails, e.g. rails on turntables, traversers, or swing bridges
- E01B 11/44 Non-dismountable rail joints; Welded joints (welding methods B23K)
- E01B 11/54 Electrically-insulating rail joints
- E01B 11/56 Special arrangements for supporting rail ends (foot supports E01B11/08 - E01B11/14)
Top Applicants
Top 10 applicants by patent filingsfor 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