Removing undesirable matter from roads or like surfaces, with or without moistening of the surface

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 roads by BLOWINGBRUSHING -apparatus for road cleaningcompositions for laying DUST from roadsremoving REFUSE from roadwaysSCAVENGERING roadscleaning of roads by SUCTIONSWEEPING of roads

5 direct subcodes

Child Classifications

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E01H 1/02 Brushing apparatus
E01H 1/08 Pneumatically dislodging or taking-up undesirable matter; Drying by heat only, or by streams of gas; Cleaning by projecting abrasive particles
E01H 1/1 Hydraulically loosening or dislodging undesirable matter; Raking or scraping apparatus
E01H 1/12 Hand implements, e.g. litter pickers
E01H 1/14 Removing by magnetic effect

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