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PCE
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DIFF Subgroup
E01C 5/22

made of units composed of a mixture of materials covered by two or more of groups , E01C5/02 - E01C5/20

Introduced: September 1968

Title

Titles differ between systems:

IPC: made of units composed of a mixture of materials covered by two or more of groups

CPC: made of units composed of a mixture of materials covered by two or more of groups , E01C5/02 - E01C5/20

Full Title

Full titles differ between systems:

IPC:

Pavings made of prefabricated single units > made of units composed of a mixture of materials covered by two or more of groups

CPC:

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) > made of units composed of a mixture of materials covered by two or more of groups , E01C5/02 - E01C5/20

Of 2 combined children, 0 exist in both systems.

2 codes are CPC-only extensions.

Child Classifications

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Top Applicants

Top Applicants (IPC)

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

Top Applicants (CPC)

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