Inventor · Bartlesville, OK, US

Errun Ding

49Patents
14h-index
34Co-inventors
77Inventor score

Filing activity: Jun 28, 2010 → May 14, 2024

Most-cited inventions

PatentTitleAreaCited byStatus
US9006367B2 Low density polyolefin resins and films made therefrom Chemistry; Metallurgy 69 Active
US9181370B2 Low density polyolefin resins with low molecular weight and high molecular weight components, and films made therefrom Chemistry; Metallurgy 49 Active
US9540457B1 Ziegler-natta—metallocene dual catalyst systems with activator-supports Chemistry; Metallurgy 47 Active
US8680218B1 Methods for controlling dual catalyst olefin polymerizations with an organozinc compound Chemistry; Metallurgy 34 Active
US8329834B2 Dual metallocene catalyst systems for decreasing melt index and increasing polymer production rates Chemistry; Metallurgy 32 Active
US10358506B2 Dual catalyst system for producing LLDPE copolymers with improved processability Chemistry; Metallurgy 29 Active
US9394393B2 Higher density polyolefins with improved stress crack resistance Chemistry; Metallurgy 29 Active
US9156970B2 Higher density polyolefins with improved stress crack resistance Chemistry; Metallurgy 29 Active
US9758599B2 Heterogeneous Ziegler-Natta catalysts with fluorided silica-coated alumina Chemistry; Metallurgy 28 Active
US8207280B2 Use of hydrogen scavenging catalysts to control polymer molecular weight and hydrogen levels in a polymerization reactor Emerging Cross-Sectional Technologies 26 Active
US8932975B2 Catalyst systems and methods of making and using same Emerging Cross-Sectional Technologies 24 Active
US8501651B2 Catalyst systems and polymer resins having improved barrier properties Chemistry; Metallurgy 18 Active
US9334350B2 Low density polyolefin resins and films made therefrom Chemistry; Metallurgy 18 Active
US8309748B2 Half-metallocene compounds and catalyst compositions Chemistry; Metallurgy 15 Active
US8450436B2 Dual metallocene catalyst systems for decreasing melt index and increasing polymer production rates Chemistry; Metallurgy 14 Active
US11014997B2 Dual catalyst system for producing high density polyethylenes with long chain branching Chemistry; Metallurgy 11 Active
US11339279B2 Dual catalyst system for producing LLDPE and MDPE copolymers with long chain branching for film applications Chemistry; Metallurgy 10 Active
US8865846B2 Metallocene and half sandwich dual catalyst systems for producing broad molecular weight distribution polymers Chemistry; Metallurgy 9 Active
US9718907B2 Ziegler-Natta—metallocene dual catalyst systems with activator-supports Chemistry; Metallurgy 8 Active
US8501654B2 Use of hydrogen scavenging catalysts to control polymer molecular weight and hydrogen levels in a polymerization reactor Emerging Cross-Sectional Technologies 6 Active
US8501882B2 Use of hydrogen and an organozinc compound for polymerization and polymer property control Chemistry; Metallurgy 6 Active
US8759246B2 Half-metallocene compounds and catalyst compositions Chemistry; Metallurgy 6 Active
US9273159B2 Metallocene and half sandwich dual catalyst systems for producing broad molecular weight distribution polymers Chemistry; Metallurgy 6 Active
US9845367B2 Heterogeneous Ziegler-Natta catalysts with fluorided silica-coated alumina Chemistry; Metallurgy 6 Active
US9926393B2 Ziegler-natta—metallocene dual catalyst systems with activator-supports Chemistry; Metallurgy 5 Active

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