Inventor · Amersfoort, NL

Johan A. Thoen

29Patents
15h-index
47Co-inventors
81Inventor score

Filing activity: Jul 27, 1988 → Dec 14, 2012

Most-cited inventions

PatentTitleAreaCited byStatus
US6187424A Sheet materials suitable for use as a floor, wall or ceiling covering material, and processes and intermediates for making the same Emerging Cross-Sectional Technologies 102 Expired
US5910358A PVC-free foamed flooring and wall coverings Emerging Cross-Sectional Technologies 48 Expired
US6593005B2 Composition and films thereof Emerging Cross-Sectional Technologies 47 Expired
US4997706A Foaming system for closed-cell rigid polymer foam Emerging Cross-Sectional Technologies 46 Expired
US5986009A Blends of polypropylenes Chemistry; Metallurgy 42 Expired
US5114989A Isocyanate-terminated prepolymer and polyurethane foam prepared therefrom Chemistry; Metallurgy 35 Expired
US6254956A Floor, wall or ceiling covering Emerging Cross-Sectional Technologies 30 Expired
US6103803A Filled polymer compositions Chemistry; Metallurgy 27 Expired
US5120815A Tertiary amine-containing polyols prepared in a Mannich condensation reaction using a mixture of alkanolamines Chemistry; Metallurgy 27 Expired
US5250579A Cellular polymer containing perforated cell windows and a process for the preparation thereof Emerging Cross-Sectional Technologies 24 Expired
US5973049A Filled polymer compositions Chemistry; Metallurgy 22 Expired
US6184294A Blends of .alpha.-olefin/vinylidene aromatic monomer or hindered aliphatic vinylidene monomer interpolymers with polyolefins Chemistry; Metallurgy 22 Expired
US5001164A Polyurethane foam prepared with reduced levels of hard halocarbon blowing agents Chemistry; Metallurgy 21 Expired
US6417242B1 Propylene polymer foams Chemistry; Metallurgy 19 Expired
US5286759A Foaming system for rigid urethane and isocyanurate foams Emerging Cross-Sectional Technologies 16 Expired
US4939182A Melamine-alkanolamine condensates and polyurethanes prepared therefrom Chemistry; Metallurgy 15 Expired
US6800669B2 Propylene copolymer foams Chemistry; Metallurgy 15 Expired
US8168572B2 Lubricant blend composition Chemistry; Metallurgy 11 Active
US4943597A Polyether polyol formulations for hard CFC replacement by water blowing in rigid polyurethane foams Chemistry; Metallurgy 10 Expired
US5281632A Cellular polymer containing perforated cell windows and a process for the preparation thereof Emerging Cross-Sectional Technologies 8 Expired
US5089534A Process for preparing flexible polyurethane foam Chemistry; Metallurgy 6 Expired
US5312846A Cellular polymer containing perforated cell windows and a process for the preparation thereof Emerging Cross-Sectional Technologies 6 Expired
US8357644B2 Polyalkylene glycol lubricant composition Chemistry; Metallurgy 5 Active
US5122548A Elastomeric polyisocyanate-based polymers from polyoxyalkylene polyols containing internal polyoxyethylene blocks Emerging Cross-Sectional Technologies 5 Expired
US8592357B2 Polyalkylene glycol lubricant composition Chemistry; Metallurgy 4 Active

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