CPC Main Group Additional Only
E01B 2201/00 Fastening or restraining methods
5 direct subcodes
Child Classifications
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- E01B 2201/02 by wedging action
- E01B 2201/04 by bolting, nailing or the like
- E01B 2201/06 by eccentric or levering action
- E01B 2201/08 by plastic or elastic deformation of fastener
- E01B 2201/10 in alternative ways, e.g. glueing, welding, form-fits
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