Removing undesirable matter from the permanent way of railways; Removing undesirable matter from tramway rails

Introduced: September 1968

Last revised: January 2006

Classification Context

Section:: FIXED CONSTRUCTIONS
Class:: CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Subclass:: STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; CLEANING LAND; DISPERSING FOG IN GENERAL

Related Keywords

CLEANING permanent ways of railwaysCLEANING tramway railsCLEARING permanent ways of railwaysCLEARING tramway railsremoving ICE from railway or tramway tracksMELTING ice or snow on railway trackscleaning permanent way of RAILWAY(S),RAILROAD(S)removing REFUSE from permanent ways of railwaysremoving REFUSE from tramway tracksremoving SNOW from railway or tramway tracksSNOW ploughs

2 direct subcodes

Child Classifications

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E01H 8/02 Methods or apparatus for removing ice or snow from railway tracks, e.g. using snow-ploughs
E01H 8/1 Removing undesirable matter from rails, flange grooves, or the like, e.g. removing ice from contact rails, removing mud from flange grooves

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