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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 23/09 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

  1. CHINA RAILWAY SIYUAN SURVEY AND DESIGN GROUP COMPANY 2,096
  2. CHANG AN UNIVERSITY 1,878
  3. ROAD & BRIDGE INTERNATIONAL COMPANY 1,796
  4. CREEC (CHINA RAILWAY ERYUAN ENGINEERING GROUP) 1,493
  5. CHINA RAILWAY MAJOR BRIDGE ENGINEERING GROUP COMPANY 1,327
  6. CCCC FIRST HIGHWAY ENGINEERING GROUP COMPANY 1,133
  7. CCCC SECOND HARBOUR ENGINEERING COMPANY 1,029
  8. PLASSER & THEURER EXPORT VON BAHNBAUMASCHINEN AT 935
  9. TONGJI UNIVERSITY 899
  10. CATERPILLAR PAVING PRODUCTS US 868