Improving gripping of ice-bound or other slippery traffic surfaces, e.g. using gritting or thawing materials ( roughening ice by means of tools E01H5/12; applying de-icing agents to rails E01H8/10; thawing materials C09K3/18; by constructional features E01C11/24 )

Filing statistics

CPC E01H 10/00 belongs to the parent subclass E01H, which recorded 21,455 patent applications worldwide between 2013 and 2023. Annual filings grew from 785 in 2013 to 1,782 in 2023 (+127%), peaking at 2,947 applications in 2018. The most active applicants in class E01 are PLASSER & THEURER EXPORT VON BAHNBAUMASCHINEN (998 applications), CATERPILLAR PAVING PRODUCTS (937 applications) and CHINA RAILWAY SIYUAN SURVEY AND DESIGN GROUP COMPANY (869 applications).

Source: EPO PATSTAT, worldwide filings