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CPC Subgroup
E01C 19/23

Rollers therefor; Such rollers usable also for compacting soil ( E01C19/43, take precedence; specially adapted for agricultural purposes A01B29/00; garden rollers A01G20/35; making or maintaining surfaces of snow or ice E01H4/00; solely for soil compaction E02D3/026)

Full Title

Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving (surface stabilisation E01C21/00; apparatus specially adapted for reconditioning or repairing paving E01C23/00) > for consolidating or finishing laid-down unset materials ( E01C23/02 take precedence; apparatus for generating vibrations in general B06B) > Rollers therefor; Such rollers usable also for compacting soil ( E01C19/43, take precedence; specially adapted for agricultural purposes A01B29/00; garden rollers A01G20/35; making or maintaining surfaces of snow or ice E01H4/00; solely for soil compaction E02D3/026)

10 direct subcodes

Child Classifications

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  • E01C 19/24 hand propelled ( E01C19/27 - E01C19/29, take precedence)
  • E01C 19/27 with elastically-deformable rolling elements, e.g. pneumatic tyres ( ; vibrating or impacting E01C19/28)
  • E01C 19/29 Rolling apparatus adapted to apply a rolling pressure less than its weight, e.g. roller finishers travelling on formrail

Top Applicants

Top 10 applicants by patent filingsfor class E01, 2013–2023, worldwide · Source: EPO PATSTAT

  1. PLASSER & THEURER EXPORT VON BAHNBAUMASCHINEN AT 998
  2. CATERPILLAR PAVING PRODUCTS US 937
  3. CHINA RAILWAY SIYUAN SURVEY AND DESIGN GROUP COMPANY 869
  4. WIRTGEN DE 740
  5. CHINA RAILWAY MAJOR BRIDGE ENGINEERING GROUP COMPANY 685
  6. CHANG AN UNIVERSITY 615
  7. CREEC (CHINA RAILWAY ERYUAN ENGINEERING GROUP) 613
  8. SOUTHEAST UNIVERSITY 562
  9. TONGJI UNIVERSITY 500
  10. ROAD & BRIDGE INTERNATIONAL COMPANY 491