Inventor · Schifferstadt, DE

Robert Gehm

6Patents
3h-index
12Co-inventors
46Inventor score

Filing activity: Jul 25, 1977 → Dec 30, 1983

Most-cited inventions

PatentTitleAreaCited byStatus
US4258140A Storage-stable prepolymers sprayable from a pressure vessel Emerging Cross-Sectional Technologies 15 Expired
US4598125A Preparation of impact-resistant nylon molding materials by alkaline lactam polymerization Chemistry; Metallurgy 8 Expired
US4305861A Process for the manufacture of stable polymer polyol dispersions Chemistry; Metallurgy 6 Expired
US4452921A Process for the preparation of polyurethane-polyisocyanurate foams Chemistry; Metallurgy 3 Expired
US4447561A Stable water glass solutions, process for their preparation and use for organosilicate foams as well as a production process therefor Chemistry; Metallurgy 2 Expired
US4195149A Hard, rigid, non-elastomeric polyurethane, compositions Chemistry; Metallurgy 1 Expired

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