CPC Main Group
E01B 7/00 Switches; Crossings (operating mechanisms B61L)
8 direct subcodes
Child Classifications
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- E01B 7/02 Tongues; Associated constructions
- E01B 7/10 Frogs
- E01B 7/18 Combinations of switches and crossings
- E01B 7/20 Safety means for switches, e.g. switch point protectors, auxiliary or guiding rail members
- E01B 7/22 Special sleepers for switches or crossings; Fastening means therefor
- E01B 7/24 Heating of switches
- E01B 7/26 Lubricating of switches (lubricating of rails B61K3/00)
- E01B 7/28 Crossings
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