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DIFF Subgroup
E01D 15/12

Portable or sectional bridges (floating bridges E01D15/14)

Introduced: September 1968

Title

Titles differ between systems:

IPC: Portable or sectional bridges

CPC: Portable or sectional bridges (floating bridges E01D15/14)

Full Title

Full titles differ between systems:

IPC:

Movable or portable bridges; Floating bridges > Portable or sectional bridges

CPC:

Movable or portable bridges; Floating bridges > Portable or sectional bridges (floating bridges E01D15/14)

Of 4 combined children, 2 exist in both systems.

2 codes are CPC-only extensions.

1 shared codes have differing titles between IPC and CPC.

IPC defines codes here since 1995.

Child Classifications

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  • E01D 15/122 CPC only CPC only
  • E01D 15/124 CPC only CPC only
  • E01D 15/127 combined with ground-supported vehicles for the transport, handling or placing of such bridges or of sections thereof since 1995 IPC+CPC Available in IPC and CPC
  • E01D 15/133 built-up from readily separable standardised sections or elements, e.g. Bailey bridges (E01D15/127 takes precedence) since 1995 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