Improving gripping of ice-bound or other slippery traffic surfaces

Official title: Improving gripping of ice-bound or other slippery traffic surfaces, e.g. using gritting or thawing materials {; Roadside storage of gritting or solid thawing materials; Permanently installed devices for applying gritting or thawing materials; Mobile apparatus specially adapted for treating wintry roads by applying liquid, semi-liquid or granular materials}({treatment of dispersed oil or similar pollution on roads E01H1/001;} 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 {; apparatus for distributing granular materials for road building purposes E01C19/20})

E01H10/00 (Improving gripping of ice-bound or other slippery traffic surfaces) appears on 234 US grants and 263 published applications in this corpus.