Inventor · disambiguated record
Hye Kyung Cho Timken
Also filed as: TIMKEN HYE K C · TIMKEN HYE KYUNG · TIMKEN HYE-KYUNG C · TIMKEN HYE-KYUNG CHO
159 granted patents·43 pending applications·2,350 citations·filing 1991–2025
99Inventor score
Top patents by PatentIndex Score
202 records- 0199US11473016B2Circular economy for plastic waste to polyethylene and lubricating oil via crude and isomerization dewaxing unitsCHEVRON USA INC·Filed 2020·Granted Oct 18, 2022·16 cites·25 claims
- 0299US11174437B2Circular economy for plastic waste to polypropylene via refinery FCC and alkylation unitsCHEVRON USA INC·Filed 2020·Granted Nov 16, 2021·23 cites·13 claims
- 0399US11174436B2Circular economy for plastic waste to polyethylene via refinery crude unitCHEVRON USA INC·Filed 2020·Granted Nov 16, 2021·23 cites·18 claims
- 0498US11959025B2Circular economy for plastic waste to polypropylene and lubricating oil via refinery FCC and isomerization dewaxing unitsCHEVRON USA INC·Filed 2022·Granted Apr 16, 2024·10 cites·21 claims
- 0598US11905466B2Circular economy for plastic waste to polyethylene via refinery FCC and alkylation unitsCHEVRON USA INC·Filed 2022·Granted Feb 20, 2024·8 cites·12 claims
- 0698US11739272B2Circular economy for plastic waste to polyethylene and lubricating oil via crude and isomerization dewaxing unitsCHEVRON USA INC·Filed 2022·Granted Aug 29, 2023·8 cites·19 claims
- 0798US11732197B2Circular economy for plastic waste to polyethylene and chemicals via refinery crude unitCHEVRON USA INC·Filed 2022·Granted Aug 22, 2023·9 cites·21 claims
- 0898US11639472B2Circular economy for plastic waste to polyethylene via oil refinery with filtering and metal oxide treatment of pyrolysis oilCHEVRON USA INC·Filed 2021·Granted May 2, 2023·12 cites·49 claims
- 0998US11584890B2Circular economy for plastic waste to polypropylene via refinery FCC unitCHEVRON USA INC·Filed 2020·Granted Feb 21, 2023·8 cites·22 claims
- 1098US11518943B2Circular economy for plastic waste to polyethylene and chemicals via refinery crude unitCHEVRON USA INC·Filed 2020·Granted Dec 6, 2022·11 cites·26 claims
- 1198US11518944B2Circular economy for plastic waste to polyethylene via refinery FCC and alkylation unitsCHEVRON USA INC·Filed 2020·Granted Dec 6, 2022·8 cites·22 claims
- 1298US11518945B2Circular economy for plastic waste to polypropylene and lubricating oil via refinery FCC and isomerization dewaxing unitsCHEVRON USA INC·Filed 2020·Granted Dec 6, 2022·12 cites·25 claims
- 1398US11359147B2Circular economy for plastic waste to polypropylene via oil refinery with filtering and metal oxide treatment of pyrolysis oilCHEVRON USA INC·Filed 2021·Granted Jun 14, 2022·11 cites·51 claims
- 1498US8222471B2Process for making a high viscosity base oil with an improved viscosity indexELOMARI SALEH·Filed 2010·Granted Jul 17, 2012·35 cites·28 claims
- 1598US7531707B2Alkylation process using an alkyl halide promoted ionic liquid catalystCHEVRON USA INC·Filed 2006·Granted May 12, 2009·52 cites·15 claims
- 1697US11939527B1Circular economy for plastic waste to polyethylene via refinery FCC feed pretreater and FCC unitsCHEVRON USA INC·Filed 2022·Granted Mar 26, 2024·10 cites·8 claims
- 1797US11643373B1Integrated reactor for ionic liquid alkylation using bio-ethylene feedstockCHEVRON USA INC·Filed 2022·Granted May 9, 2023·3 cites·15 claims
- 1897US11306253B2Circular economy for plastic waste to polyethylene via refinery FCC or FCC/alkylation unitsCHEVRON USA INC·Filed 2020·Granted Apr 19, 2022·47 cites·22 claims
- 1997US7553999B2Isomerization of butene in the ionic liquid-catalyzed alkylation of light isoparaffins and olefinsCHEVRON USA INC·Filed 2006·Granted Jun 30, 2009·22 cites·21 claims
- 2096US11621059B2Method for on-line prediction of conjunct polymer concentration in a hydrocarbon conversion processCHEVRON USA INC·Filed 2021·Granted Apr 4, 2023·3 cites·11 claims
- 2196US7674739B2Regeneration of ionic liquid catalyst using a metal in the absence of added hydrogenCHEVRON USA INC·Filed 2006·Granted Mar 9, 2010·39 cites·24 claims
- 2296US7432408B2Integrated alkylation process using ionic liquid catalystsCHEVRON USA INC·Filed 2004·Granted Oct 7, 2008·116 cites·32 claims
- 2396US6294077B1Production of high viscosity lubricating oil stock with improved ZSM-5 catalystMOBIL OIL CORP·Filed 2000·Granted Sep 25, 2001·69 cites·9 claims
- 2495US12415958B2Process for stable blend of waste plastic with petroleum feed for feeding to oil refinery units and process of preparing sameCHEVRON USA INC·Filed 2023·Granted Sep 16, 2025·2 cites·12 claims
- 2595US12404458B2Process for stable blend of waste plastic with petroleum feed for feeding to oil refinery units and process of preparing sameCHEVRON USA INC·Filed 2023·Granted Sep 2, 2025·2 cites·23 claims
- 2695US11566182B2Circular economy for plastic waste to polyethylene via refinery FCC feed pretreater and FCC unitsCHEVRON USA INC·Filed 2020·Granted Jan 31, 2023·8 cites·20 claims
- 2795US9802186B2Reactor for homogeneous regeneration of spent ionic liquidCHEVRON USA INC·Filed 2016·Granted Oct 31, 2017·7 cites·20 claims
- 2895US9238193B2Separations with ionic liquid solventsCHEVRON PHILLIPS CHEMICAL CO·Filed 2013·Granted Jan 19, 2016·16 cites·44 claims
- 2995US7803267B2Gasoline sulfur reduction in fluid catalytic crackingGRACE W R & CO·Filed 2005·Granted Sep 28, 2010·27 cites·15 claims
- 3094US11884885B2Co-processing of waste plastic pyrolysis oils and biorenewable feedstocksCHEVRON USA INC·Filed 2022·Granted Jan 30, 2024·8 cites·14 claims
- 3194US8920755B2Conversion of HF alkylation units for ionic liquid catalyzed alkylation processesCLEVERDON ROBERT FLETCHER·Filed 2011·Granted Dec 30, 2014·27 cites·19 claims
- 3294US7432409B2Alkylation process using chloroaluminate ionic liquid catalystsCHEVRON USA INC·Filed 2004·Granted Oct 7, 2008·85 cites·36 claims
- 3393US11639320B1Process for the production of renewable distillate-range hydrocarbonsCHEVRON USA INC·Filed 2022·Granted May 2, 2023·2 cites·20 claims
- 3493US9732016B2Separations with ionic liquid solventsCHEVRON PHILLIPS CHEMICAL CO LP·Filed 2015·Granted Aug 15, 2017·5 cites·44 claims
- 3593US9388093B2Nozzle design for ionic liquid catalyzed alkylationLUO HUPING·Filed 2014·Granted Jul 12, 2016·14 cites·43 claims
- 3693US8183425B2Ionic liquid catalyst alkylation using split reactant streamsLUO HUPING·Filed 2007·Granted May 22, 2012·21 cites·16 claims
- 3793US5685972AProduction of benzene, toluene, and xylene (BTX) from FCC naphthaFiled 1995·Granted Nov 11, 1997·94 cites·20 claims
- 3893US5417949ANOx abatement processMOBIL OIL CORP·Filed 1993·Granted May 23, 1995·92 cites·10 claims
- 3992US10094778B1Integrated systems and processes for online monitoring of a chemical concentration in an ionic liquidCHEVRON USA INC·Filed 2017·Granted Oct 9, 2018·5 cites·25 claims
- 4092US9956553B2Regeneration of an ionic liquid catalyst by hydrogenation using a macroporous noble metal catalystCHEVRON USA INC·Filed 2016·Granted May 1, 2018·5 cites·23 claims
- 4192US8524623B2Electrochemical removal of conjunct polymers from chloroaluminate ionic liquidsTIMKEN HYE-KYUNG·Filed 2009·Granted Sep 3, 2013·15 cites·24 claims
- 4292US8288601B2Process for reacting an iso-alkane to produce a high boiling product and an alkylate gasoline blending componentHOMMELTOFT SVEN IVAR·Filed 2012·Granted Oct 16, 2012·10 cites·14 claims
- 4392US7956230B2Reduction of organic halide contamination in hydrocarbon productsCHEVRON USA INC·Filed 2007·Granted Jun 7, 2011·11 cites·35 claims
- 4492US6902664B2Extremely low acidity USY and homogeneous, amorphous silica-alumina hydrocracking catalyst and processCHEVRON USA INC·Filed 2002·Granted Jun 7, 2005·57 cites·31 claims
- 4592US6506953B1Hydroalkylation of aromatic hydrocarbonsEXXONMOBIL OIL CORP·Filed 2000·Granted Jan 14, 2003·30 cites·10 claims
- 4691US10435491B2Method for making polyalphaolefins using ionic liquid catalyzed oligomerization of olefinsCHEVRON PHILLIPS CHEMICAL CO LP·Filed 2015·Granted Oct 8, 2019·4 cites·20 claims
- 4791US10301233B2Natural gas liquid upgrading by ionic liquid catalyzed alkylationCHEVRON USA INC·Filed 2017·Granted May 28, 2019·8 cites·12 claims
- 4891US9545614B2Pneumatically agitated ionic liquid alkylation using vaporization to remove reaction heatCHEVRON USA INC·Filed 2015·Granted Jan 17, 2017·5 cites·27 claims
- 4991US7148391B1Heavy aromatics processingEXXONMOBIL CHEM PATENTS INC·Filed 2002·Granted Dec 12, 2006·51 cites·17 claims
- 5091US6872685B2Method for preparing a highly homogeneous amorphous silica-alumina compositionCHEVRON USA INC·Filed 2002·Granted Mar 29, 2005·44 cites·12 claims
Showing the top 50 of 202 patent records by PatentIndex Score.
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