Inventor · disambiguated record
Bun Yeoul Lee
Also filed as: LEE BUN YEOUL
58 granted patents·7 pending applications·267 citations·filing 1996–2021
98Inventor score
Files withLG CHEMICAL LTD30LEE BUN-YEOUL8LOTTE CHEMICAL CORP7SK INNOVATION CO LTD5UNIV AJOU IND ACADEMIC COOP FOUND3
Top patents by PatentIndex Score
65 records- 0196US7244805B2Bimetallic zinc complex and process of producing polycarbonate using the same as polymerization catalystLG CHEMICAL LTD·Filed 2005·Granted Jul 17, 2007·36 cites·7 claims
- 0294US8163867B2Process for producing polycarbonates and a coordination complex used thereforLEE BUN YEOUL·Filed 2008·Granted Apr 24, 2012·41 cites·7 claims
- 0393US8598309B2Catalytic system of nitrate anions for CO2/epoxide copolymerizationJEONG JI SU·Filed 2011·Granted Dec 3, 2013·47 cites·15 claims
- 0492US8530616B2Precise control of molecular weight and chain shape control in carbon dioxide/epoxide alternating copolymerization and preparation of low molecular weight poly(alkylene carbonate) therebyJEONG JISU·Filed 2010·Granted Sep 10, 2013·14 cites·14 claims
- 0587US8048973B2Transition metal complex, catalyst composition including the same and olefin polymer using catalyst compositionLG CHEMICAL LTD·Filed 2011·Granted Nov 1, 2011·5 cites·7 claims
- 0684US9115161B2Process for producing polycarbonates and a coordination complex used thereforSK INNOVATION CO LTD·Filed 2014·Granted Aug 25, 2015·3 cites·3 claims
- 0784US8785592B2Preparation of poly(alkylene carbonate) containing cross-linked high molecular weight chainsJEONG JI SU·Filed 2011·Granted Jul 22, 2014·4 cites·4 claims
- 0883US9096575B2Group 4 metal compound containing thiophene-fused cyclopentadienyl ligand derived from tetraquinoline derivative and olefin polymerization using the sameLOTTE CHEMICAL CORP·Filed 2014·Granted Aug 4, 2015·3 cites·4 claims
- 0982US8912352B2Group 4 metal compound containing thiophene-fused cyclopentadienyl ligand derived from tetraquinoline derivative and olefin polymerization using the sameLEE BUN-YEOUL·Filed 2011·Granted Dec 16, 2014·4 cites·8 claims
- 1082US8637634B2Block and graft copolymers of poly(alkylene carbonate) and various polymersJEONG JISU·Filed 2011·Granted Jan 28, 2014·3 cites·11 claims
- 1177US11414541B2Block copolymer compositionLG CHEMICAL LTD·Filed 2019·Granted Aug 16, 2022·0 cites·14 claims
- 1277US7932207B2Method for preparing transition metal complexes, transition metal complexes prepared using the method, catalyst composition containing the complexesLG CHEMICAL LTD·Filed 2007·Granted Apr 26, 2011·4 cites·5 claims
- 1376US11795321B2Method for producing block copolymer compositionLG CHEMICAL LTD·Filed 2019·Granted Oct 24, 2023·0 cites·14 claims
- 1475US11052384B2Chrome compound, catalyst system using same, and method for preparing ethylene oligomerAJOU UNIV INDUSTRY—ACADEMIC COOPERATION FOUNDATION·Filed 2016·Granted Jul 6, 2021·1 cites·11 claims
- 1575US8916662B2Method for preparing olefin-diene copolymer using transition metal compound containing thiophene-fused cyclopentadienyl ligandLEE BUN-YEOUL·Filed 2011·Granted Dec 23, 2014·3 cites·12 claims
- 1674US11312856B2Block copolymer compositionLG CHEMICAL LTD·Filed 2019·Granted Apr 26, 2022·0 cites·15 claims
- 1772US10875818B2Chromium compound, catalyst system including the same, and method for trimerizing ethylene using the catalyst systemAJOU UNIV INDUSTRY—ACADEMIC COOPERATION FOUNDATION·Filed 2019·Granted Dec 29, 2020·0 cites·1 claims
- 1871US6803433B2Catalyst for olefin polymerization and method for preparing polyolefinsLG CHEMICAL LTD·Filed 2002·Granted Oct 12, 2004·9 cites·12 claims
- 1970US11535741B2Block copolymer compositionLG CHEMICAL LTD·Filed 2019·Granted Dec 27, 2022·0 cites·18 claims
- 2070US7629481B2Ansa-metallocene compound, process of preparing the same, and process of preparing polyolefin using the sameLG CHEMICAL LTD·Filed 2005·Granted Dec 8, 2009·2 cites·4 claims
- 2169US7247595B2Supported metallocene catalyst and olefin polymerization using the sameLG CHEMICAL LTD·Filed 2005·Granted Jul 24, 2007·2 cites·7 claims
- 2266US10793671B2Aliphatic polycarbonate macropolyol and aliphatic polycarbonate-coaromatic polyester macropolyolLOTTE CHEMICAL CORP·Filed 2018·Granted Oct 6, 2020·0 cites·9 claims
- 2365US12479950B2Anionic polymerization initiator, anionic polymerization initiator composition, and production method thereforLG CHEMICAL LTD·Filed 2021·Granted Nov 25, 2025·0 cites·2 claims
- 2465US9284407B2Preparation of poly(alkylene carbonate) containing cross-linked high molecular weight chainsSK INNOVATION CO LTD·Filed 2014·Granted Mar 15, 2016·0 cites·9 claims
- 2565US6255417B1Process for the preparation of olefinic polymers using metallocene catalystLG CHEMICAL LTD·Filed 1996·Granted Jul 3, 2001·22 cites·3 claims
- 2664US7928256B2Transition metal complex, catalyst composition including the same and olefin polymer using catalyst compositionLG CHEMICAL LTD·Filed 2007·Granted Apr 19, 2011·6 cites·3 claims
- 2764US2010029896A1Novel Coordination complexes and process of producing polycarbonate by copolymerization of carbon dioxide and epoxide using the same as catalystOK MYUNGAHN·Filed 2009·Application pending·0 cites
- 2863US7531608B2Transition metal complexes, catalyst compositions containing the same, and olefin polymerization using the catalyst compositionsLG CHEMICAL LTD·Filed 2006·Granted May 12, 2009·1 cites·9 claims
- 2962US6506919B1Metallocene compounds and their use for olefin polymerizationLG CHEMICAL LTD·Filed 2000·Granted Jan 14, 2003·6 cites·12 claims
- 3062US6469113B1Method for producing supported metallocene catalyst and olefin polymerization process using the sameLG CHEMICAL LTD·Filed 1999·Granted Oct 22, 2002·16 cites·14 claims
- 3161US8039671B2Transition metal complex, catalyst composition including the same and olefin polymer using catalyst compositionLG CHEMICAL LTD·Filed 2011·Granted Oct 18, 2011·2 cites·1 claims
- 3261US6340728B1Method for olefin polymerization with recycling of co-catalystLG CHEMICAL LTD·Filed 2000·Granted Jan 22, 2002·7 cites·13 claims
- 3361US2018079765A1Double Metal Cyanide Catalyst and Epoxide/Carbon Dioxide Copolymer Prepared Using the SameSK INNOVATION CO LTD·Filed 2017·Application pending·0 cites
- 3460US12318766B2Method for preparing cocatalyst compound using anhydrous hydrocarbon solventLG CHEMICAL LTD·Filed 2020·Granted Jun 3, 2025·0 cites·5 claims
- 3560US8889581B2Catalyst composition for olefin polymerization and preparation method for polyolefin using the sameLEE BUN-YEOUL·Filed 2011·Granted Nov 18, 2014·4 cites·15 claims
- 3660US2014163179A1Block and Graft Copolymers of Poly(Alkylene Carbonate) and Various PolymersSK INNOVATION CO LTD·Filed 2014·Application pending·0 cites
- 3759US11148127B2Bisphosphine ligand compound, chromium compound, ethylene oligomerization catalyst system, and ethylene oligomer preparation methodUNIV AJOU IND ACADEMIC COOP FOUND·Filed 2019·Granted Oct 19, 2021·0 cites·10 claims
- 3858US8829156B2Process for producing polycarbonates and a coordination complex used thereforLEE BUN YEOUL·Filed 2012·Granted Sep 9, 2014·0 cites·3 claims
- 3958US8735521B2Cycloolefin-based polymer compound, preparation method thereof and selective hydrogenation processSUNG IK KYUNG·Filed 2009·Granted May 27, 2014·2 cites·11 claims
- 4058US8530615B2Process for producing polycarbonates and a coordination complex used thereforLEE BUN YEOUL·Filed 2012·Granted Sep 10, 2013·0 cites·7 claims
- 4158US8129488B2Transition metal complexes, catalyst compositions containing the same, and olefin polymerization using the catalyst compositionsLEE CHOONG HOON·Filed 2009·Granted Mar 6, 2012·0 cites·5 claims
- 4258US7166731B2Method of preparing fulvene compounds and method of preparing ansa-metallocene compounds using the compoundsLG CHEMICAL LTD·Filed 2004·Granted Jan 23, 2007·2 cites·18 claims
- 4358US2016152651A1Double Metal Cyanide Catalyst and Epoxide/Carbon Dioxide Copolymer Prepared Using the SameSK INNOVATION CO LTD·Filed 2014·Application pending·0 cites
- 4458US2023295189A1Organozinc Compound Preparation Method, Chain Transfer Agent, Block Copolymer, and Resin CompositionLG CHEMICAL LTD·Filed 2021·Application pending·0 cites
- 4557US2016177027A1Aliphatic polycarbonate macropolyol and aliphatic polycarbonate-co-aromatic polyester macropolyolLOTTE CHEMICAL CORP·Filed 2013·Application pending·0 cites
- 4656US10442741B2Chromium compound, catalyst system including same, and method for trimerizing ethylene using the catalyst systemUNIV AJOU IND ACADEMIC COOP FOUND·Filed 2015·Granted Oct 15, 2019·0 cites·5 claims
- 4755US7807762B2Catalyst composition comprising Group 4 transition metal complexes and method for preparing polyolefins using the sameLG CHEMICAL LTD·Filed 2006·Granted Oct 5, 2010·0 cites·13 claims
- 4854US9475905B2High-molecular weight aliphatic polycarbonate prepared using base catalystLOTTE CHEMICAL CORP·Filed 2013·Granted Oct 25, 2016·0 cites·14 claims
- 4954US9447234B2High molecular weight aliphatic polycarbonate copolymer and preparation method thereofLOTTE CHEMICAL CORP·Filed 2013·Granted Sep 20, 2016·0 cites·15 claims
- 5054US9120836B2Method for preparing transition metal complexes, transition metal complexes prepared using the method, catalyst composition containing the complexesLEE CHOONG-HOON·Filed 2011·Granted Sep 1, 2015·0 cites·6 claims
Showing the top 50 of 65 patent records by PatentIndex Score.
Join the waitlist — get patent alerts
Get an alert when Bun Yeoul Lee files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →