Inventor · Schifferstadt, DE

Herbert Spoor

21Patents
11h-index
44Co-inventors
71Inventor score

Filing activity: Jul 10, 1972 → Sep 10, 1984

Most-cited inventions

PatentTitleAreaCited byStatus
US4525570A Heat-setting mixtures which have a long shelf life and comprise a polyisocyanate and compounds which are reactive toward isocyanate groups, and their preparation Emerging Cross-Sectional Technologies 47 Expired
US3994989A Paint binder Emerging Cross-Sectional Technologies 31 Expired
US4001155A Paint binders of Mannich bases and epoxy resins Emerging Cross-Sectional Technologies 23 Expired
US4336309A Curable coating agents and process for the production of scratch-resistant coatings on plastics Emerging Cross-Sectional Technologies 19 Expired
US4559118A Magnetic recording media Emerging Cross-Sectional Technologies 18 Expired
US4086292A Surface-coating binders Chemistry; Metallurgy 17 Expired
US4058646A Magnetic recording media containing elastomeric polyurethane binders in the magnetic coating Emerging Cross-Sectional Technologies 16 Expired
US3966655A Manufacture of polyester imide dispersions Emerging Cross-Sectional Technologies 15 Expired
US4182851A Process for reducing the residual monomer content in the polymerization of vinyl-lactams and vinyl esters Chemistry; Metallurgy 13 Expired
US3992346A Production of highly flexible coatings Chemistry; Metallurgy 12 Expired
US4507456A Heat-setting mixtures of a polyisocyanate with a polyol which have a long shelf life, and their preparation Emerging Cross-Sectional Technologies 11 Expired
US4310565A Process of making a magnetic recording media Physics 10 Expired
US4058506A Thermoplastic, elastic polyurethanes which are soluble in ethers and/or ketones Chemistry; Metallurgy 9 Expired
US4121266A Polyamide-imide precondensates Emerging Cross-Sectional Technologies 7 Expired
US4229551A Preparation of modified polymers of N-vinylpyrrolid-2-one and their use for the preparation of polymers interrupted by bridge members Chemistry; Metallurgy 7 Expired
US4277576A Preparation of modified polymers of N-vinylpyrrolid-2-one and their use for the preparation of polymers interrupted by bridge members Chemistry; Metallurgy 7 Expired
US4049847A Production of self-adhesive coatings on flat substrates Chemistry; Metallurgy 4 Expired
US4189559A Manufacture of polymers in bead form from water-soluble, ethylenically unsaturated monomers Chemistry; Metallurgy 3 Expired
US4164613A Manufacture of polymers in bead form from water-soluble, ethylenically unsaturated monomers Chemistry; Metallurgy 2 Expired
US4465555A Water-soluble polymers of di-C.sub.1 -C.sub.3 -alkylaminoneopentyl (meth)acrylates, and their use as retention agents, drainage agents and flocculants in papermaking Textiles; Paper 2 Expired
US4465599A Flocculants based on polymers containing water-soluble dialkylaminoneopentyl (meth)acrylates Chemistry; Metallurgy 1 Expired

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