Fastening on wooden or concrete sleepers or on masonry without clamp members

Introduced: September 1968

Last revised: January 2006

Full Title

Fastening rails on sleepers, or the like > Fastening rails, tie-plates, or chairs directly on sleepers or foundations; Means therefor > Fastening on wooden or concrete sleepers or on masonry without clamp members

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

5 direct subcodes

Child Classifications

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E01B 9/06 Railways spikes
E01B 9/1 Screws or bolts for sleepers
E01B 9/12 Retaining or locking devices for spikes or screws
E01B 9/14 Plugs, sleeves, thread linings, or other inserts for holes in sleepers
E01B 9/2 by keys

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