IPC Main Group
E01D 15/00 Movable or portable bridges; Floating bridges
Introduced: September 1968
Last revised: January 2006
Classification Context
- Section:
- FIXED CONSTRUCTIONS
- Class:
- CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- Subclass:
- BRIDGES
7 direct subcodes
Child Classifications
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- E01D 15/02 Vertical lift bridges
- E01D 15/04 Swing bridges
- E01D 15/06 Bascule bridges; Roller bascule bridges, e.g. of Scherzer type
- E01D 15/1 Travelling bridges; Sliding bridges; Rotary cylinder bridges, i.e. rotating about longitudinal axis to invert and raise the road
- E01D 15/12 Portable or sectional bridges
- E01D 15/14 Floating bridges, e.g. pontoon bridges
- 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
Top Applicants
Top 10 applicants by patent filingsfor 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