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DIFF Subgroup
E01D 15/14

Floating bridges, e.g. pontoon bridges (landing bridges E01D15/24; floating bodies or pontoons B63B)

Introduced: September 1968

Description

E01D15/14 covers floating bridges, e.g. pontoon bridges, in which the deck is carried by buoyant supports instead of fixed piers. Subject matter includes military and civil pontoon crossings, the coupling and anchoring of floating sections, and arrangements for compensating water-level changes. The group belongs to the movable and portable bridges of E01D15/00. Landing bridges for embarking or disembarking are classified in E01D15/24, and the floating bodies or pontoons themselves in B63B.

Title

Titles differ between systems:

IPC: Floating bridges, e.g. pontoon bridges

CPC: Floating bridges, e.g. pontoon bridges (landing bridges E01D15/24; floating bodies or pontoons B63B)

Full Title

Full titles differ between systems:

IPC:

Movable or portable bridges; Floating bridges > Floating bridges, e.g. pontoon bridges

CPC:

Movable or portable bridges; Floating bridges > Floating bridges, e.g. pontoon bridges (landing bridges E01D15/24; floating bodies or pontoons B63B)

Of 3 combined children, 2 exist in both systems.

1 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 15/145 CPC only CPC only
  • E01D 15/20 collapsible, expandable, inflatable or the like (E01D15/22 takes precedence) since 1995 IPC+CPC Available in IPC and CPC
  • E01D 15/22 designed as, or mounted on, vehicles 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