Inventor · disambiguated record
Youlu Yu
Also filed as: YU YOULU
76 granted patents·3 pending applications·1,680 citations·filing 1991–2025
99Inventor score
Files withCHEVRON PHILLIPS CHEMICAL CO LP40CHEVRON PHILLIPS CHEMICAL CO22YANG QING5DING ERRUN3YU YOULU3
Top patents by PatentIndex Score
79 records- 0199US11326005B1Particle size control of metallocene catalyst systems in loop slurry polymerization reactorsCHEVRON PHILLIPS CHEMICAL CO LP·Filed 2021·Granted May 10, 2022·4 cites·22 claims
- 0299US11325997B1Particle size control of supported chromium catalysts in loop slurry polymerization reactorsCHEVRON PHILLIPS CHEMICAL CO LP·Filed 2021·Granted May 10, 2022·9 cites·22 claims
- 0399US11267919B2Dual catalyst system for producing polyethylene with long chain branching for blow molding applicationsCHEVRON PHILLIPS CHEMICAL CO LP·Filed 2020·Granted Mar 8, 2022·11 cites·20 claims
- 0499US11124586B1Particle size control of metallocene catalyst systems in loop slurry polymerization reactorsCHEVRON PHILLIPS CHEMICAL CO LP·Filed 2020·Granted Sep 21, 2021·19 cites·29 claims
- 0599US8912285B2Catalyst system with three metallocenes for producing broad molecular weight distribution polymersCHEVRON PHILLIPS CHEMICAL CO·Filed 2012·Granted Dec 16, 2014·37 cites·20 claims
- 0699US8288487B2Catalysts for producing broad molecular weight distribution polyolefins in the absence of added hydrogenYANG QING·Filed 2010·Granted Oct 16, 2012·96 cites·25 claims
- 0799US7517939B2Polymerization catalysts for producing high molecular weight polymers with low levels of long chain branchingCHEVRON PHILLIPS CHEMICAL CO·Filed 2006·Granted Apr 14, 2009·339 cites·23 claims
- 0898US11339279B2Dual catalyst system for producing LLDPE and MDPE copolymers with long chain branching for film applicationsCHEVRON PHILLIPS CHEMICAL CO LP·Filed 2020·Granted May 24, 2022·16 cites·34 claims
- 0998US11014997B2Dual catalyst system for producing high density polyethylenes with long chain branchingCHEVRON PHILLIPS CHEMICAL CO LP·Filed 2019·Granted May 25, 2021·14 cites·23 claims
- 1098US10358506B2Dual catalyst system for producing LLDPE copolymers with improved processabilityCHEVRON PHILLIPS CHEMICAL CO LP·Filed 2017·Granted Jul 23, 2019·36 cites·20 claims
- 1198US10323108B2Long chain branched polymers and methods of making sameCHEVRON PHILLIPS CHEMICAL CO LP·Filed 2016·Granted Jun 18, 2019·25 cites·28 claims
- 1298US9879101B2Long chain branched polymers and methods of making sameCHEVRON PHILLIPS CHEMICAL CO LP·Filed 2017·Granted Jan 30, 2018·23 cites·22 claims
- 1398US9718907B2Ziegler-Natta—metallocene dual catalyst systems with activator-supportsCHEVRON PHILLIPS CHEMICAL CO LP·Filed 2016·Granted Aug 1, 2017·11 cites·22 claims
- 1498US9598513B2Long chain branched polymers and methods of making sameCHEVRON PHILLIPS CHEMICAL CO LP·Filed 2015·Granted Mar 21, 2017·32 cites·20 claims
- 1598US9574031B2Dual catalyst systems for producing polymers with a broad molecular weight distribution and a uniform short chain branch distributionCHEVRON PHILLIPS CHEMICAL CO LP·Filed 2015·Granted Feb 21, 2017·18 cites·23 claims
- 1698US9217049B2Dual catalyst systems for producing polymers with a broad molecular weight distribution and a uniform short chain branch distributionCHEVRON PHILLIPS CHEMICAL CO·Filed 2014·Granted Dec 22, 2015·58 cites·24 claims
- 1798US8598061B2Catalysts for producing broad molecular weight distribution polyolefins in the absence of added hydrogenYANG QING·Filed 2012·Granted Dec 3, 2013·35 cites·25 claims
- 1898US7732542B2Polymerization catalysts for producing high molecular weight polymers with low levels of long chain branchingCHEVRON PHILLIPS CHEMICAL CO·Filed 2009·Granted Jun 8, 2010·62 cites·20 claims
- 1998US7576163B2Polymerization catalysts for producing polymers with low levels of long chain branchingCHEVRON PHILLIPS CHEMICAL CO·Filed 2006·Granted Aug 18, 2009·53 cites·26 claims
- 2098US7148298B2Polymerization catalysts for producing polymers with low levels of long chain branchingCHEVRON PHILLIPS CHEMICAL CO·Filed 2004·Granted Dec 12, 2006·118 cites·32 claims
- 2198US6833338B2Organometal compound catalystPHILLIPS PETROLEUM CO·Filed 2003·Granted Dec 21, 2004·100 cites·12 claims
- 2297US11667777B2Bimodal polyethylene copolymersCHEVRON PHILLIPS CHEMICAL CO LP·Filed 2021·Granted Jun 6, 2023·4 cites·20 claims
- 2397US11505630B2Peroxide treated blow molding polymers with increased weight swell and constant die swellCHEVRON PHILLIPS CHEMICAL CO LP·Filed 2021·Granted Nov 22, 2022·4 cites·20 claims
- 2497US9845367B2Heterogeneous Ziegler-Natta catalysts with fluorided silica-coated aluminaCHEVRON PHILLIPS CHEMICAL CO LP·Filed 2015·Granted Dec 19, 2017·11 cites·20 claims
- 2597US9181372B2Catalyst system with three metallocenes for producing broad molecular weight distribution polymersCHEVRON PHILLIPS CHEMICAL CO·Filed 2014·Granted Nov 10, 2015·18 cites·27 claims
- 2697US9023967B2Long chain branched polymers and methods of making sameYU YOULU·Filed 2011·Granted May 5, 2015·47 cites·14 claims
- 2797US8791217B2Catalyst systems for production of alpha olefin oligomers and polymersHLAVINKA MARK L·Filed 2011·Granted Jul 29, 2014·32 cites·18 claims
- 2897US8318883B1Polymer compositions for blow molding applicationsYANG QING·Filed 2011·Granted Nov 27, 2012·32 cites·24 claims
- 2997US8119553B2Polymerization catalysts for producing polymers with low melt elasticityYANG QING·Filed 2007·Granted Feb 21, 2012·26 cites·16 claims
- 3097US7470758B2Polymerization catalysts for producing polymers with low levels of long chain branchingCHEVRON PHILLIPS CHEMICAL CO·Filed 2006·Granted Dec 30, 2008·60 cites·18 claims
- 3196US9926393B2Ziegler-natta—metallocene dual catalyst systems with activator-supportsCHEVRON PHILLIPS CHEMICAL CO LP·Filed 2017·Granted Mar 27, 2018·5 cites·19 claims
- 3296US8501651B2Catalyst systems and polymer resins having improved barrier propertiesDING ERRUN·Filed 2010·Granted Aug 6, 2013·21 cites·20 claims
- 3396US7652160B2Polymerization catalysts for producing high molecular weight polymers with low levels of long chain branchingCHEVERON PHILLIPS CHEMICAL COM·Filed 2009·Granted Jan 26, 2010·53 cites·18 claims
- 3495US11674023B2Polymer composition and methods of making and using sameCHEVRON PHILLIPS CHEMICAL CO LP·Filed 2020·Granted Jun 13, 2023·2 cites·22 claims
- 3595US9975976B1Polyethylene compositions and methods of making and using sameCHEVRON PHILLIPS CHEMICAL CO LP·Filed 2017·Granted May 22, 2018·10 cites·23 claims
- 3695US8865846B2Metallocene and half sandwich dual catalyst systems for producing broad molecular weight distribution polymersCHEVRON PHILLIPS CHEMICAL CO·Filed 2012·Granted Oct 21, 2014·14 cites·23 claims
- 3795US8309748B2Half-metallocene compounds and catalyst compositionsDING ERRUN·Filed 2011·Granted Nov 13, 2012·17 cites·22 claims
- 3895US7417097B2Organometal compound catalystPHILLIPS PETROLEUM CO·Filed 2004·Granted Aug 26, 2008·46 cites·20 claims
- 3994US12031022B2Dual catalyst system for producing LLDPE and MDPE copolymers with long chain branching for film applicationsCHEVRON PHILLIPS CHEMICAL CO LP·Filed 2022·Granted Jul 9, 2024·1 cites·25 claims
- 4094US8987394B2Catalyst compositions for the polymerization of olefinsCHEVRON PHILLIPS CHEMICAL CO·Filed 2014·Granted Mar 24, 2015·9 cites·20 claims
- 4193US11859024B2Dual catalyst system for producing polyethylene with long chain branching for blow molding applicationsCHEVRON PHILLIPS CHEMICAL CO LP·Filed 2022·Granted Jan 2, 2024·1 cites·21 claims
- 4293US8933175B2Hyperbranched polymers and methods of making and using sameYU YOULU·Filed 2012·Granted Jan 13, 2015·14 cites·23 claims
- 4393US8759246B2Half-metallocene compounds and catalyst compositionsCHEVRON PHILLIPS CHEMICAL CO·Filed 2012·Granted Jun 24, 2014·8 cites·26 claims
- 4493US8637691B2Polymerization catalysts for producing polymers with low melt elasticityCHEVRON PHILLIPS CHEMICAL CO·Filed 2013·Granted Jan 28, 2014·9 cites·20 claims
- 4593US7547754B2Organometal compound catalystCHEVRON PHILLIPS CHEMICAL CO·Filed 2007·Granted Jun 16, 2009·39 cites·21 claims
- 4692US9273159B2Metallocene and half sandwich dual catalyst systems for producing broad molecular weight distribution polymersCHEVRON PHILLIPS CHEMICAL CO·Filed 2014·Granted Mar 1, 2016·8 cites·20 claims
- 4792US9102821B2Catalysts for producing broad molecular weight distribution polyolefins in the absence of added hydrogenCHEVRON PHILLIPS CHEMICAL CO·Filed 2013·Granted Aug 11, 2015·7 cites·20 claims
- 4892US8501882B2Use of hydrogen and an organozinc compound for polymerization and polymer property controlDING ERRUN·Filed 2011·Granted Aug 6, 2013·11 cites·20 claims
- 4991US12240964B2Dual catalyst system for producing LLDPE and MDPE copolymers with long chain branching for film applicationsCHEVRON PHILLIPS CHEMICAL CO LP·Filed 2024·Granted Mar 4, 2025·0 cites·20 claims
- 5090US11851505B2Dual catalyst system for producing high density polyethylenes with long chain branchingCHEVRON PHILLIPS CHEMICAL CO LP·Filed 2021·Granted Dec 26, 2023·1 cites·30 claims
Showing the top 50 of 79 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →