IPC Subgroup
E01C 23/06 Devices or arrangements for working the finished surface; Devices for repairing the surface of damaged paving
Introduced: September 1968
Last revised: January 2006
Full Title
Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces > Devices or arrangements for working the finished surface; Devices for repairing the surface of damaged paving
Classification Context
- Section:
- FIXED CONSTRUCTIONS
- Class:
- CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- Subclass:
- CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
5 direct subcodes
Child Classifications
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- E01C 23/07 Apparatus combining measurement of the surface configuration of paving with application of material in proportion to the measured irregularities
- E01C 23/08 for roughening or patterning; for removing high spots or material bonded to the surface, e.g. markings
- E01C 23/09 for forming cuts, grooves, or recesses, e.g. for making joints or channels for markings, for cutting-out sections to be removed; for cleaning, treating, or filling cuts, grooves, recesses, or fissures; for trimming paving edges
- E01C 23/1 for raising or levelling sunken paving; for filling voids under paving; for introducing material into substructure
- E01C 23/12 for taking-up, tearing-up, or breaking-up paving
Top Applicants
Top 10 applicants by patent filingsfor class E01, 2013–2023, worldwide · Source: EPO PATSTAT
- CHINA RAILWAY SIYUAN SURVEY AND DESIGN GROUP COMPANY 2,096
- CHANG AN UNIVERSITY 1,878
- ROAD & BRIDGE INTERNATIONAL COMPANY 1,796
- CREEC (CHINA RAILWAY ERYUAN ENGINEERING GROUP) 1,493
- CHINA RAILWAY MAJOR BRIDGE ENGINEERING GROUP COMPANY 1,327
- CCCC FIRST HIGHWAY ENGINEERING GROUP COMPANY 1,133
- CCCC SECOND HARBOUR ENGINEERING COMPANY 1,029
- PLASSER & THEURER EXPORT VON BAHNBAUMASCHINEN AT 935
- TONGJI UNIVERSITY 899
- CATERPILLAR PAVING PRODUCTS US 868