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CPC Subgroup
E01C 19/22

for consolidating or finishing laid-down unset materials ( E01C23/02 take precedence; apparatus for generating vibrations in general B06B)

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)

6 direct subcodes

Child Classifications

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  • E01C 19/41 Apparatus having both rolling tools and ramming, tamping, or vibrating tools
  • E01C 19/42 Machines for imparting a smooth finish to freshly-laid paving courses other than by rolling, tamping or vibrating (for distributing only E01C19/12; )
  • E01C 19/43 Machines or arrangements for roughening or patterning freshly-laid paving courses, e.g. indenting rollers
  • E01C 19/44 Hand-actuated tools other than rollers, tampers, or vibrators, specially adapted for imparting a required finish to freshly-laid paving courses (E01C19/43, take precedence)

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