IPC Main Group
E01D 19/00 Details of bridges
Introduced: September 1968
Last revised: January 2006
Classification Context
- Section:
- FIXED CONSTRUCTIONS
- Class:
- CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- Subclass:
- BRIDGES
Related Keywords
TRUSSES forming parts of bridges
8 direct subcodes
Child Classifications
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- E01D 19/02 Piers; Abutments
- E01D 19/04 Bearings; Hinges
- E01D 19/06 Arrangement, construction, or bridging of expansion joints
- E01D 19/08 Damp-proof or other insulating layers; Drainage arrangements or devices
- E01D 19/1 Railings; Protectors against smoke or gases, e.g. of locomotives; Maintenance travellers; Fastening of pipes or cables to bridges
- E01D 19/12 Grating or flooring for bridges; Fastening railway sleepers or tracks to bridges
- E01D 19/14 Towers; Anchors; Saddle supports
- E01D 19/16 Suspension cables; Cable clamps for suspension cables
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