DIFF Main Group
E01D 15/00 Movable or portable bridges; Floating bridges
Introduced: September 1968
Of 8 combined children, 7 exist in both systems.
1 codes are CPC-only extensions.
4 shared codes have differing titles between IPC and CPC.
Child Classifications
Navigate with arrow keys, Enter to open
- E01D 15/06 Bascule bridges; Roller bascule bridges, e.g. of Scherzer type IPC+CPC Available in IPC and CPC
- E01D 15/10 Travelling bridges ; Sliding bridges; Rotary cylinder bridges, i.e. rotating about longitudinal axis to invert and raise the road IPC+CPC Available in IPC and CPC
- E01D 15/12 Portable or sectional bridges (floating bridges E01D15/14) +2 CPC IPC+CPC Available in IPC and CPC
- E01D 15/14 Floating bridges, e.g. pontoon bridges (landing bridges E01D15/24; floating bodies or pontoons B63B) +1 CPC IPC+CPC Available in IPC and CPC
- E01D 15/24 Bridges or similar structures, based on land or on a fixed structure and designed to give access to ships or other floating structures (arrangement of ship-based ramps B63B27/14; loading ramps B65G69/28) since 1995 IPC+CPC Available in IPC and CPC
Top Applicants
Top Applicants (IPC)
Class E01,2013–2023, worldwide · Source: EPO PATSTAT
- CHINA RAILWAY SIYUAN SURVEY AND DESIGN GROUP COMPANY 2,096
- CHANG AN UNIVERSITY 1,878
- ROAD & BRIDGE INTERNATIONAL COMPANY 1,796
- CREEC (CHINA RAILWAY ERYUAN ENGINEERING GROUP) 1,493
- CHINA RAILWAY MAJOR BRIDGE ENGINEERING GROUP COMPANY 1,327
- CCCC FIRST HIGHWAY ENGINEERING GROUP COMPANY 1,133
- CCCC SECOND HARBOUR ENGINEERING COMPANY 1,029
- PLASSER & THEURER EXPORT VON BAHNBAUMASCHINEN AT 935
- TONGJI UNIVERSITY 899
- CATERPILLAR PAVING PRODUCTS US 868
Top Applicants (CPC)
Class E01,2013–2023, worldwide · Source: EPO PATSTAT
- PLASSER & THEURER EXPORT VON BAHNBAUMASCHINEN AT 998
- CATERPILLAR PAVING PRODUCTS US 937
- CHINA RAILWAY SIYUAN SURVEY AND DESIGN GROUP COMPANY 869
- WIRTGEN DE 740
- CHINA RAILWAY MAJOR BRIDGE ENGINEERING GROUP COMPANY 685
- CHANG AN UNIVERSITY 615
- CREEC (CHINA RAILWAY ERYUAN ENGINEERING GROUP) 613
- SOUTHEAST UNIVERSITY 562
- TONGJI UNIVERSITY 500
- ROAD & BRIDGE INTERNATIONAL COMPANY 491