Shiftable tracks for heavy loads, e.g. carrying excavators

Introduced: September 1968

Last revised: January 2006

Full Title

Easily dismountable or movable tracks, e.g. temporary railways; Details specially adapted therefor > Shiftable tracks for heavy loads, e.g. carrying excavators

Classification Context

Section:: FIXED CONSTRUCTIONS
Class:: CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Subclass:: PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS

3 direct subcodes

Child Classifications

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E01B 23/12 Sleepers
E01B 23/14 Fastening or joining means
E01B 23/16 Switches

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