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PCE
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DIFF Subgroup
E01B 9/04

Fastening on wooden or concrete sleepers or on masonry without clamp members

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Fastening rails on sleepers, or the like > Fastening rails, tie-plates, or chairs directly on sleepers or foundations; Means therefor > Fastening on wooden or concrete sleepers or on masonry without clamp members

CPC:

Fastening rails on sleepers, or the like (fastening rails to bridges E01D19/12) > Fastening rails, tie-plates, or chairs directly on sleepers or foundations; Means therefor > Fastening on wooden or concrete sleepers or on masonry without clamp members

IPC and CPC are identically structured here. All 5 subcodes exist in both systems.

3 shared codes have differing titles between IPC and CPC.

Child Classifications

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  • E01B 9/10 Screws or bolts for sleepers (screws or bolts in general F16B) IPC+CPC Available in IPC and CPC
  • E01B 9/12 Retaining or locking devices for spikes or screws IPC+CPC Available in IPC and CPC
  • E01B 9/20 by keys IPC+CPC Available in IPC and CPC

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