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PCE
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DIFF Subgroup
E01H 4/02

for sporting purposes, e.g. preparation of ski trails; , e.g. devices adapted for ski-trails (production of snow or ice for winter sports or similar recreational purposes F25C3/00)

Introduced: January 1985

Title

Titles differ between systems:

IPC: for sporting purposes, e.g. preparation of ski trails

CPC: for sporting purposes, e.g. preparation of ski trails; , e.g. devices adapted for ski-trails (production of snow or ice for winter sports or similar recreational purposes F25C3/00)

Full Title

Full titles differ between systems:

IPC:

Working on surfaces of snow or ice in order to make them suitable for traffic or sporting purposes, e.g. by compacting snow > for sporting purposes, e.g. preparation of ski trails

CPC:

Working on surfaces of snow or ice in order to make them suitable for traffic or sporting purposes, e.g. by compacting snow (production of artificial snow F25C3/04) > for sporting purposes, e.g. preparation of ski trails; , e.g. devices adapted for ski-trails (production of snow or ice for winter sports or similar recreational purposes F25C3/00)

Of 2 combined children, 0 exist in both systems.

2 codes are CPC-only extensions.

Note: 1 CPC extensions are marked as secondary classification only.

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