Inventor · Heidelberg, DE

Wolfram Frank

5Patents
3h-index
23Co-inventors
49Inventor score

Filing activity: Mar 30, 1982 → Dec 23, 1987

Most-cited inventions

PatentTitleAreaCited byStatus
US4438131A .OMEGA.-Cyano-1, .OMEGA.-diphenyl-azaalkane derivatives, their preparation and drugs containing them Chemistry; Metallurgy 24 Expired
US4812368A Process for the preparation of lightweight, planar molded articles Emerging Cross-Sectional Technologies 10 Expired
US4560708A Polyisocyanurate/polyurethane elastomers based on suspensions of crystalline polyesters and polyhydroxyl compounds Emerging Cross-Sectional Technologies 6 Expired
US4514526A Storage-stable tris(hydroxyalkyl)isocyanurate polyol dispersions, process for their preparation and their utilization Emerging Cross-Sectional Technologies 3 Expired
US4452921A Process for the preparation of polyurethane-polyisocyanurate foams Chemistry; Metallurgy 3 Expired

Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.