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IPC Main Group
E01B 9/00

Fastening rails on sleepers, or the like

Introduced: September 1968

Last revised: January 2006

Classification Context

Section:
FIXED CONSTRUCTIONS
Class:
CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Subclass:
PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS

Related Keywords

CHAIRS for rails of railwaysFASTENING rails or railway sleepers

7 direct subcodes

Child Classifications

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  • E01B 9/6 Rail fastenings making use of clamps or braces supporting the side or head of the rail
  • E01B 9/62 Rail fastenings incorporating resilient supports
  • E01B 9/64 Rail fastenings gripping or encircling the sleeper
  • E01B 9/66 Rail fastenings allowing the adjustment of the position of the rails, so far as not covered by the preceding groups
  • E01B 9/68 Pads or the like, e.g. of wood, rubber, placed under the rail, tie-plate, or chair

Top Applicants

Top 10 applicants by patent filingsfor 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