CPC Subgroup
E01B 23/10 Shiftable tracks for heavy loads, e.g. carrying excavators
Full Title
Easily dismountable or movable tracks, e.g. temporary railways; Details specially adapted therefor > Shiftable tracks for heavy loads, e.g. carrying excavators
3 direct subcodes
Child Classifications
Navigate with arrow keys, Enter to open
- E01B 23/12 Sleepers
- E01B 23/14 Fastening or joining means (fastening of rails by keys E01B9/24)
- E01B 23/16 Switches
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