Inventor · Wilmington, DE, US

Der-Ing Liao

17Patents
9h-index
15Co-inventors
65Inventor score

Filing activity: Dec 16, 2003 → Sep 14, 2015

Most-cited inventions

PatentTitleAreaCited byStatus
US7910342B2 Fermentive production of isobutanol using highly active ketol-acid reductoisomerase enzymes Emerging Cross-Sectional Technologies 48 Active
US8129162B2 Ketol-acid reductoisomerase using NADH Emerging Cross-Sectional Technologies 43 Active
US8222017B2 Ketol-acid reductoisomerase using NADH Emerging Cross-Sectional Technologies 37 Active
US7709239B2 Mutant Δ8 desaturase genes engineered by targeted mutagenesis and their use in making polyunsaturated fatty acids Chemistry; Metallurgy 36 Active
US8895307B2 Ketol-acid reductoisomerase using NADH Emerging Cross-Sectional Technologies 31 Active
US8945899B2 Ketol-acid reductoisomerase using NADH Emerging Cross-Sectional Technologies 31 Active
US8911981B2 Ketol-acid reductoisomerase using NADH Emerging Cross-Sectional Technologies 31 Active
US9169467B2 Ketol-acid reductoisomerase enzymes and methods of use Emerging Cross-Sectional Technologies 10 Active
US9238801B2 Ketol-acid reductoisomerase using NADH Emerging Cross-Sectional Technologies 10 Active
US9388392B2 Ketol-acid reductoisomerase enzymes and methods of use Emerging Cross-Sectional Technologies 9 Active
US9284612B2 Fermentive production of isobutanol using highly active ketol-acid reductoisomerase enzymes Emerging Cross-Sectional Technologies 9 Active
US7410754B1 B12 -dependent dehydratases with improved reaction kinetics Chemistry; Metallurgy 2 Expired
US8017838B2 Mutant delta-8 desaturase genes engineered by targeted mutagensis and their use in making polyunsaturated fatty acids Chemistry; Metallurgy 0 Active
US7985849B2 B12 dependent dehydratases with improved reaction kinetics Chemistry; Metallurgy 0 Active
US8569469B2 B12-dependent dehydratases with improved reaction kinetics Chemistry; Metallurgy 0 Active
US8026089B2 Mutant Δ8 desaturase genes engineered by targeted mutagenesis and their use in making polyunsaturated fatty acids Chemistry; Metallurgy 0 Active
US8445659B2 B12-dependent dehydratases with improved reaction kinetics Chemistry; Metallurgy 0 Active

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