Inventor · Hoek, NL

Hanno R. Van der Wal

14Patents

5h-index

42Co-inventors

66Inventor score

Filing activity: Mar 30, 1987 → Sep 7, 2016

Most-cited inventions

Patent	Title	Area	Cited by	Status
US4980445A	Thermoplastic polyurethanes	Chemistry; Metallurgy	29	Expired
US4789690A	Polyurethane foam and process for its preparation	Emerging Cross-Sectional Technologies	23	Expired
US8296974B2	Thermoplastic polyurethane containing structural units of polyester and polyether diols	Chemistry; Metallurgy	9	Active
US5936055A	Acid functionalized polyurethane adducts	Chemistry; Metallurgy	6	Expired
US5274004A	Process for conversion of polyurethane polymer to polyol and fresh polyurethane polymer therefrom	Emerging Cross-Sectional Technologies	5	Expired
US5244932A	Polymer polyol dispersions, a process for making them and polyurethane foams prepared using such polyol dispersions	Chemistry; Metallurgy	2	Expired
US8680211B2	Hybrid polyester-polyether polyols	Chemistry; Metallurgy	2	Active
US8436063B2	Polymer polyols and polymer dispersions made from vegetable oil-based hydroxyl-containing materials	Chemistry; Metallurgy	2	Active
US6849666B2	Polyurethanes containing dispersed crystalline polyesters	Chemistry; Metallurgy	1	Expired
US8822581B2	Melt dispersion process for making polymer polyols	Chemistry; Metallurgy	1	Active
US9644097B2	Stabilizer polymerization process and process for making polymer polyols	Chemistry; Metallurgy	1	Active
US10759891B2	Copolymer polyol with functional additive in dispersed phase	Chemistry; Metallurgy	1	Active
US9758619B2	Process for making polyether alcohols having oxyethylene units by polymerization of ethylene carbonate in the presence of double metal cyanide catalysts	Chemistry; Metallurgy	0	Active
US8686057B2	Polyurethanes made from hydroxy-methyl containing fatty acids or alkyl esters of such fatty acids	Chemistry; Metallurgy	0	Active

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