Turning or tilting or elastically bending

Full Title

Characteristics of moving parts of rail systems, e.g. switches, special frogs, tongues > Nature of the movement > Turning or tilting or elastically bending

2 direct subcodes

Child Classifications

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E01B 2202/022 about horizontal axis
E01B 2202/024 about vertical axis

Top Applicants

Top 10 applicants by patent filingsfor class E01, 2013–2023, worldwide · Source: EPO PATSTAT

PLASSER & THEURER EXPORT VON BAHNBAUMASCHINEN AT 998
CATERPILLAR PAVING PRODUCTS US 937
CHINA RAILWAY SIYUAN SURVEY AND DESIGN GROUP COMPANY 869
WIRTGEN DE 740
CHINA RAILWAY MAJOR BRIDGE ENGINEERING GROUP COMPANY 685
CHANG AN UNIVERSITY 615
CREEC (CHINA RAILWAY ERYUAN ENGINEERING GROUP) 613
SOUTHEAST UNIVERSITY 562
TONGJI UNIVERSITY 500
ROAD & BRIDGE INTERNATIONAL COMPANY 491