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CPC Subgroup
E01F 9/608

for guiding, warning or controlling traffic, e.g. delineator posts or milestones

Full Title

Arrangement of road signs or traffic signals; Arrangements for enforcing caution (for obstructing or restricting traffic E01F13/00) > Upright bodies, e.g. marker posts or bollards; Supports for road signs > specially adapted for particular signalling purposes, e.g. for indicating curves, road works or pedestrian crossings > for guiding, warning or controlling traffic, e.g. delineator posts or milestones

Filing statistics

CPC E01F 9/608 belongs to the parent subclass E01F, which recorded 36,058 patent applications worldwide between 2013 and 2023. Annual filings grew from 1,661 in 2013 to 2,936 in 2023 (+77%), peaking at 5,112 applications in 2020. The most active applicants in class E01 are PLASSER & THEURER EXPORT VON BAHNBAUMASCHINEN (998 applications), CATERPILLAR PAVING PRODUCTS (937 applications) and CHINA RAILWAY SIYUAN SURVEY AND DESIGN GROUP COMPANY (869 applications).

Source: EPO PATSTAT, worldwide filings

1 direct subcode

Child Classifications

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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