Inventor · disambiguated record
David Yen-Lung Chung
Also filed as: CHUNG DAVID Y · CHUNG DAVID YEN-LUNG
60 granted patents·3 pending applications·1,371 citations·filing 1985–2011
99Inventor score
Files withEXXON CHEMICAL PATENTS INC28EXXONMOBIL CHEM PATENTS INC25WADDELL WALTER HARVEY2DOW CHEMICAL CO1DOW CORNING1
Top patents by PatentIndex Score
63 records- 0198US5068047AVisosity index improverEXXON CHEMICAL PATENTS INC·Filed 1989·Granted Nov 26, 1991·146 cites·154 claims
- 0297US7232872B2Polymerization processesEXXONMOBIL CHEM PATENTS INC·Filed 2003·Granted Jun 19, 2007·77 cites·106 claims
- 0395US5427702AMixed ethylene alpha olefin copolymer multifunctional viscosity modifiers useful in lube oil compositionsEXXON CHEMICAL PATENTS INC·Filed 1992·Granted Jun 27, 1995·80 cites·13 claims
- 0494US7414101B2Polymerization processesEXXONMOBIL CHEM PATENTS INC·Filed 2007·Granted Aug 19, 2008·18 cites·35 claims
- 0594US7402636B1Method and apparatus for decreasing polymer depositionEXXONMOBIL CHEM PATENTS INC·Filed 2007·Granted Jul 22, 2008·25 cites·38 claims
- 0694US5744429AMixed ethylene alpha olefin copolymer multifunctional viscosity modifiers useful in lube oil compositionsEXXON CHEMICAL PATENTS INC·Filed 1996·Granted Apr 28, 1998·76 cites·19 claims
- 0793US7585914B2Thermoplastic elastomer compositions and methods for making the sameEXXONMOBIL CHEM PATENTS INC·Filed 2005·Granted Sep 8, 2009·18 cites·34 claims
- 0892US4749505AOlefin polymer viscosity index improver additive useful in oil compositionsEXXON CHEMICAL PATENTS INC·Filed 1985·Granted Jun 7, 1988·69 cites·44 claims
- 0991US7638573B2Butyl nanocomposite via low Mw elastomer pre-blendEXXONMOBIL CHEM PATENTS INC·Filed 2006·Granted Dec 29, 2009·12 cites·83 claims
- 1091US7332554B2Polymers with new sequence distributionsEXXONMOBIL CHEM PATENTS INC·Filed 2003·Granted Feb 19, 2008·23 cites·64 claims
- 1188US5424367AMultiple reaction process in melt processing equipmentEXXON CHEMICAL PATENTS INC·Filed 1992·Granted Jun 13, 1995·62 cites·48 claims
- 1288US4735736AViscosity index improver-dispersant additiveEXXON CHEMICAL PATENTS INC·Filed 1985·Granted Apr 5, 1988·48 cites·18 claims
- 1387US6177519B1Silane grafted copolymers of an isomonoolefin and a vinyl aromatic monomerEXXON CHEMICAL PATENTS INC·Filed 1999·Granted Jan 23, 2001·54 cites·26 claims
- 1487US5651927AMultiple reaction process in melt processing equipmentEXXON CHEMICAL PATENTS INC·Filed 1996·Granted Jul 29, 1997·58 cites·20 claims
- 1587US5552096AMultiple reaction process in melt processing equipmentEXXON CHEMICAL PATENTS INC·Filed 1995·Granted Sep 3, 1996·56 cites·19 claims
- 1687US5328624AStabilized grafted ethylene copolymer additive useful in oil compositionsEXXON CHEMICAL PATENTS INC·Filed 1993·Granted Jul 12, 1994·38 cites·22 claims
- 1786US7723447B2Polymerization processesEXXONMOBIL CHEM PATENTS INC·Filed 2003·Granted May 25, 2010·24 cites·51 claims
- 1886US4803003AEthylene copolymer viscosity index improver dispersant additive useful in oil compositionsEXXON CHEMICAL PATENTS INC·Filed 1987·Granted Feb 7, 1989·35 cites·18 claims
- 1984US7582715B2Polymers substantially free of long chain branchingEXXONMOBIL CHEM PATENTS INC·Filed 2003·Granted Sep 1, 2009·12 cites·26 claims
- 2084US7491773B2Halogenated polymers with new sequence distributionsEXXONMOBIL CHEM PATENTS INC·Filed 2004·Granted Feb 17, 2009·12 cites·87 claims
- 2182US5670582AProcess for halogenation of isomonoolefin/para-alkylstyrene copolymersEXXON CHEMICAL PATENTS INC·Filed 1996·Granted Sep 23, 1997·40 cites·27 claims
- 2280US5244590AViscosity index improverEXXON CHEMICAL PATENTS INC·Filed 1991·Granted Sep 14, 1993·25 cites·34 claims
- 2379US7960454B2Processing aids for elastomeric compositionsEXXONMOBIL CHEM PATENTS INC·Filed 2005·Granted Jun 14, 2011·6 cites·19 claims
- 2479US6590039B1Silane grafted copolymers of an alpha-olefin and a vinyl aromatic monomerEXXONMOBIL CHEM PATENTS INC·Filed 2000·Granted Jul 8, 2003·16 cites·23 claims
- 2579US5035821AEnd-capped multifunctional viscosity index improverEXXON CHEMICAL PATENTS INC·Filed 1988·Granted Jul 30, 1991·29 cites·29 claims
- 2678US7781547B2Reactor systems for use in polymerization processesEXXONMOBIL CHEM PATENTS INC·Filed 2004·Granted Aug 24, 2010·14 cites·41 claims
- 2778US7491764B2Low permeability nanocompositesEXXONMOBIL CHEM PATENTS INC·Filed 2002·Granted Feb 17, 2009·15 cites·56 claims
- 2878US6380316B1Polyisobutylene copolymers having reactive silyl graftsDOW CORNING·Filed 1999·Granted Apr 30, 2002·35 cites·22 claims
- 2977US7425601B2Polymers with new sequence distributionsEXXONMOBIL CHEM PATENTS INC·Filed 2003·Granted Sep 16, 2008·13 cites·72 claims
- 3075US7767743B2Processable branched isoolefin-alkylstyrene elastomersEXXONMOBIL CHEM PATENTS INC·Filed 2006·Granted Aug 3, 2010·3 cites·71 claims
- 3175US5312556AMultifunctional viscosity index improver derived from polyamine containing one primary amine group and at least one tertiary amine group and degraded ethylene copolymerEXXON CHEMICAL PATENTS INC·Filed 1992·Granted May 17, 1994·21 cites·46 claims
- 3275US5167848AGrafted viscosity index improverEXXON CHEMICAL PATENTS INC·Filed 1989·Granted Dec 1, 1992·25 cites·101 claims
- 3374US7659355B2Elastomeric compositions, air barriers, and processes for the making the sameEXXONMOBIL CHEM PATENTS INC·Filed 2005·Granted Feb 9, 2010·2 cites·31 claims
- 3474US7329697B2Elastomeric compositionsEXXONMOBIL CHEM PATENTS INC·Filed 2002·Granted Feb 12, 2008·11 cites·41 claims
- 3574US7241831B2Elastomeric compositionsEXXONMOBIL CHEM PATENTS INC·Filed 2002·Granted Jul 10, 2007·11 cites·94 claims
- 3671US5262075AMultifunctional viscosity index improver exhibitng improved low temperature viscometric propertiesEXXON CHEMICAL PATENTS INC·Filed 1992·Granted Nov 16, 1993·23 cites·149 claims
- 3770US7332555B2Polymers with new sequence distributionsEXXONMOBIL CHEM PATENTS INC·Filed 2004·Granted Feb 19, 2008·5 cites·91 claims
- 3868US8283407B2Processing aids for elastomeric compositionsWADDELL WALTER HARVEY·Filed 2005·Granted Oct 9, 2012·3 cites·20 claims
- 3968US8178465B2Polydispersity-controlled isoolefin polymerization with polymorphogenatesSHAFFER TIMOTHY D·Filed 2011·Granted May 15, 2012·1 cites·24 claims
- 4068US5401427AViscosity index improverEXXON CHEMICAL PATENTS INC·Filed 1993·Granted Mar 28, 1995·17 cites·35 claims
- 4167US7893176B2Polydispersity-controlled isoolefin polymerization with polymorphogenatesEXXONMOBIL CHEM PATENTS INC·Filed 2007·Granted Feb 22, 2011·1 cites·26 claims
- 4266US5565161AProcess for producing a functionalized thermoplastic polymerEXXON CHEMICAL PATENTS INC·Filed 1995·Granted Oct 15, 1996·26 cites·2 claims
- 4365US7485677B2Low permeability nanocompositesEXXONMOBIL CHEM PATENTS INC·Filed 2002·Granted Feb 3, 2009·6 cites·19 claims
- 4465US6858690B2Process for polymerizing cationically polymerizable monomersEXXONMOBIL CHEM PATENTS INC·Filed 2003·Granted Feb 22, 2005·7 cites·21 claims
- 4564US8247496B2Processing aids for elastomeric compositionsWADDELL WALTER HARVEY·Filed 2005·Granted Aug 21, 2012·1 cites·17 claims
- 4655US8354473B2Halogenation processesEXXONMOBIL CHEM PATENTS INC·Filed 2011·Granted Jan 15, 2013·0 cites·14 claims
- 4755US2007179251A1Halogenated isoolefin based terpolymersWADDELL WALTER H·Filed 2007·Application pending·0 cites
- 4854US7910662B2Halogenation processesEXXONMOBIL CHEM PATENTS INC·Filed 2005·Granted Mar 22, 2011·0 cites·23 claims
- 4954US5210146AMultifunctional viscosity index improver derived from polyamine containing one primary amino group and at least one secondary amino group exhibiting improved low temperature viscometric propertiesEXXON CHEMICAL PATENTS INC·Filed 1992·Granted May 11, 1993·11 cites·51 claims
- 5052US5118433AMultifunctional viscosity index improver derived from amido-amine and degraded ethylene copolymer exhibiting improved low temperature viscometric propertiesEXXON CHEMICAL PATENTS INC·Filed 1989·Granted Jun 2, 1992·8 cites·105 claims
Showing the top 50 of 63 patent records by PatentIndex Score.
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