Inventor · Woodbury, MN, US

Zai-Ming Qiu

116Patents
18h-index
117Co-inventors
89Inventor score

Filing activity: Mar 17, 1998 → Jan 21, 2021

Most-cited inventions

PatentTitleAreaCited byStatus
US6255536A Fluorine containing vinyl ethers Chemistry; Metallurgy 99 Expired
US6803109B2 Water-and oil-repellency imparting urethane oligomers comprising perfluoroalkyl moieties Emerging Cross-Sectional Technologies 71 Expired
US7173778B2 Stain repellent optical hard coating Emerging Cross-Sectional Technologies 64 Expired
US7718264B2 Perfluoropolyether urethane additives having (meth)acryl groups and hard coats Emerging Cross-Sectional Technologies 62 Active
US6646088B2 Urethane-based stain-release coatings Emerging Cross-Sectional Technologies 59 Expired
US7101618B2 Article comprising fluorochemical surface layer Emerging Cross-Sectional Technologies 42 Expired
US7199197B2 Water- and oil-repellent fluoroacrylates Emerging Cross-Sectional Technologies 37 Expired
US7575847B2 Low refractive index composition comprising fluoropolyether urethane compound Emerging Cross-Sectional Technologies 30 Active
US6482979B1 Perfluorinated acid fluorides and preparation thereof Chemistry; Metallurgy 29 Expired
US7267850B2 Article comprising fluorochemical surface layer Emerging Cross-Sectional Technologies 28 Active
US6753380B2 Water-and oil-repellency imparting ester oligomers comprising perfluoroalkyl moieties Emerging Cross-Sectional Technologies 27 Expired
US7323514B2 Low refractive index fluoropolymer coating compositions for use in antireflective polymer films Emerging Cross-Sectional Technologies 27 Expired
US8015970B2 Respirator, welding helmet, or face shield that has low surface energy hard-coat lens Chemistry; Metallurgy 25 Active
US6255535A Fluorine containing allylethers and higher homologs Chemistry; Metallurgy 20 Expired
US7332217B2 Article and comprising fluorochemical surface layer Emerging Cross-Sectional Technologies 20 Active
US8147966B2 Perfluoropolyether urethane additives having (meth)acryl groups and hard coats Emerging Cross-Sectional Technologies 19 Active
US7279210B2 Curable compositions, methods of making and using the same, and articles therefrom Emerging Cross-Sectional Technologies 18 Expired
US8476398B2 Perfluoropolyether urethane additives having (meth)acryl groups and hard coats Emerging Cross-Sectional Technologies 18 Active
US6841333B2 Ionic photoacid generators with segmented hydrocarbon-fluorocarbon sulfonate anions Emerging Cross-Sectional Technologies 17 Expired
US8729211B2 Perfluoropolyether urethane additives having (meth)acryl groups and hard coats Emerging Cross-Sectional Technologies 17 Active
US7342080B2 Polymerizable compositions, methods of making the same, and composite articles therefrom Chemistry; Metallurgy 15 Expired
US6046368A Catalytic process for making hydrofluoroethers Chemistry; Metallurgy 14 Expired
US6890452B2 Fluorinated surfactants for aqueous acid etch solutions Electricity 12 Expired
US6582759B1 Optical elements comprising a fluorinated surface treatment comprising urethane, ester or phosphate linkages Emerging Cross-Sectional Technologies 12 Expired
US7897678B2 Fluorochemical urethane compounds having pendent silyl groups Chemistry; Metallurgy 12 Active

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