CPC Main Group
E01D 15/00 Movable or portable bridges; Floating bridges
Filing statistics
CPC E01D 15/00 belongs to the parent subclass E01D, which recorded 43,217 patent applications worldwide between 2013 and 2023. Annual filings grew from 1,120 in 2013 to 5,567 in 2023 (+397%), peaking at 6,371 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
8 direct subcodes
Child Classifications
Navigate with arrow keys, Enter to open
- 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 15/10 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 (floating bridges E01D15/14)
- E01D 15/14 Floating bridges, e.g. pontoon bridges (landing bridges E01D15/24; floating bodies or pontoons B63B)
- 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)
Top Applicants
Top 10 applicants by patent filingsfor 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