CPC Main Group
E01C 5/00 Pavings made of prefabricated single units (specially adapted for playgrounds or sports grounds E01C13/04, for footpaths, sidewalks or cycle tracks E01C15/00; making artificial stones C04B; building stones E04C; flooring E04F)
13 direct subcodes
Child Classifications
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- E01C 5/02 made of natural stones, e.g. sett stones
- E01C 5/04 made of bricks
- E01C 5/06 made of units with cement or like binders
- E01C 5/12 made of units with bituminous binders
- E01C 5/14 made of wooden units
- E01C 5/16 made of metallic units ( steel gratings E01C9/10)
- E01C 5/18 made of rubber units
- E01C 5/20 made of units of plastics, (E01C5/18 takes precedence; )
- E01C 5/22 made of units composed of a mixture of materials covered by two or more of groups , E01C5/02 - E01C5/20
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