Inventor · disambiguated record
Howard Steven Lacheen
Also filed as: LACHEEN HOWARD · LACHEEN HOWARD S · LACHEEN HOWARD STEVEN
28 granted patents·25 pending applications·107 citations·filing 2007–2025
95Inventor score
Files withCHEVRON USA INC24HOMMELTOFT SVEN IVAR8LACHEEN HOWARD STEVEN4TIMKEN HYE KYUNG4JOTHIMURUGESAN KANDASWAMY3
Top patents by PatentIndex Score
53 records- 0194US9364782B1Separation of gases using GME framework type zeolitesXIE DAN·Filed 2015·Granted Jun 14, 2016·10 cites·8 claims
- 0292US10094778B1Integrated 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
- 0392US9192921B1Support for Fischer-Tropsch catalyst having improved activityJOTHIMURUGESAN KANDASWAMY·Filed 2015·Granted Nov 24, 2015·5 cites·16 claims
- 0491US10167200B2Synthesis of molecular sieve SSZ-41CHEVRON USA INC·Filed 2017·Granted Jan 1, 2019·6 cites·7 claims
- 0590US10010877B2Stable support for Fischer-Tropsch catalyst and methods for making and usingCHEVRON USA INC·Filed 2016·Granted Jul 3, 2018·4 cites·12 claims
- 0690US9290702B2Methods for monitoring ionic liquids using vibrational spectroscopyLACHEEN HOWARD STEVEN·Filed 2011·Granted Mar 22, 2016·9 cites·16 claims
- 0789US8105481B2Reduction of organic halide contamination in hydrocarbon productsDRIVER MICHAEL S·Filed 2007·Granted Jan 31, 2012·15 cites·30 claims
- 0888US7988747B2Production of low sulphur alkylate gasoline fuelCHEVRON USA INC·Filed 2007·Granted Aug 2, 2011·7 cites·21 claims
- 0988US7754636B2Removal of excess metal halides from regenerated ionic liquid catalystsCHEVRON USA INC·Filed 2007·Granted Jul 13, 2010·10 cites·16 claims
- 1087US10589260B2Molecular sieve SSZ-110, its synthesis and useCHEVRON USA INC·Filed 2019·Granted Mar 17, 2020·1 cites·10 claims
- 1186US10113963B1Integrated systems and processes for online monitoring of a chemical concentration in a flow of a degassed ionic liquidCHEVRON USA INC·Filed 2018·Granted Oct 30, 2018·2 cites·20 claims
- 1285US10913659B1Molecular sieve SSZ-114, its synthesis and useCHEVRON USA INC·Filed 2020·Granted Feb 9, 2021·1 cites·9 claims
- 1385US9839897B2Method for reducing organic halide contamination in hydrocarbon products using a metal chlorideLACHEEN HOWARD STEVEN·Filed 2013·Granted Dec 12, 2017·3 cites·26 claims
- 1485US8487154B2Market driven alkylation or oligomerization processTIMKEN HYE-KYUNG·Filed 2010·Granted Jul 16, 2013·5 cites·10 claims
- 1583US8070939B2Process for measuring and adjusting halide in a reactorHOMMELTOFT SVEN IVAR·Filed 2008·Granted Dec 6, 2011·9 cites·36 claims
- 1682US8926735B1Separation of gases using zeolite SSZ-45XIE DAN·Filed 2014·Granted Jan 6, 2015·5 cites·6 claims
- 1781US8142725B2Apparatus for producing alkylate gasoline and middle distillateHOMMELTOFT SVEN IVAR·Filed 2011·Granted Mar 27, 2012·3 cites·16 claims
- 1876US8865960B2Startup procedures for ionic liquid catalyzed hydrocarbon conversion processesTIMKEN HYE-KYUNG·Filed 2010·Granted Oct 21, 2014·3 cites·17 claims
- 1975US2024367159A1Molecular sieve ssz-92, catalyst, and methods of use thereofCHEVRON USA INC·Filed 2022·Application pending·0 cites
- 2073US8895794B2Process for producing high quality gasoline blending components in two modesTIMKEN HYE-KYUNG·Filed 2010·Granted Nov 25, 2014·2 cites·18 claims
- 2171US8906311B2Process unit for flexible production of alkylate gasoline and distillateTIMKEN HYE KYUNG CHO·Filed 2013·Granted Dec 9, 2014·1 cites·19 claims
- 2270US8455708B2Flexible production of alkylate gasoline and distillateTIMKEN HYE-KYUNG·Filed 2010·Granted Jun 4, 2013·1 cites·10 claims
- 2367US2022305471A1Molecular sieve ssz-92, catalyst, and methods of use thereofCHEVRON USA INC·Filed 2021·Application pending·0 cites
- 2466US9084991B2Acid catalyst composition comprising conjunct polymer and lewis acidHOMMELTOFT SVEN IVAR·Filed 2012·Granted Jul 21, 2015·0 cites·9 claims
- 2566US2013190167A1Method to make an acidic ionic liquid catalyst having greater than 20 wt% conjunct polymerHOMMELTOFT SVEN IVAR·Filed 2013·Application pending·0 cites
- 2665US8889934B2Process for hydrocarbon conversion using, a method to make, and compositions of, an acid catalystHOMMELTOFT SVEN IVAR·Filed 2008·Granted Nov 18, 2014·0 cites·16 claims
- 2765US2023338934A1Molecular sieve ssz-92, catalyst, and methods of use thereofCHEVRON USA INC·Filed 2023·Application pending·0 cites
- 2865US2025382181A1Accretion of carbon nanotubesCHEVRON USA INC·Filed 2025·Application pending·0 cites
- 2964US2020171471A1Molecular sieve ssz-110, its synthesis and useCHEVRON USA INC·Filed 2020·Application pending·0 cites
- 3063US2010158762A1Ionic liquid system for an isoparaffin/olefin alkylationCHEVRON USA INC·Filed 2009·Application pending·0 cites
- 3163US2010167916A1Ionic liquid catalyst comprising an alkyl-pyridinium haloaluminate and an impurityCHEVRON USA INC·Filed 2009·Application pending·0 cites
- 3263US2025059035A1Method for producing liquefied carbon dioxide from liquefied natural gasCHEVRON USA INC·Filed 2023·Application pending·0 cites
- 3363US2025381559A1Catalyst for light hydrocarbon cracking to produce hydrogen and high value solid carbonCHEVRON USA INC·Filed 2025·Application pending·0 cites
- 3462US11753355B2Base oil synthesis via ionic catalyst oligomerization and waterless separation of the oligomerization catalystCHEVRON USA INC·Filed 2020·Granted Sep 12, 2023·0 cites·24 claims
- 3562US2011319258A1Method to make an acid catalyst having greater than 20 wt% conjunct polymerHOMMELTOFT SVEN IVAR·Filed 2011·Application pending·0 cites
- 3662US2012004095A1Acid catalyst composition having a high level of conjunct polymer.HOMMELTOFT SVEN IVAR·Filed 2011·Application pending·0 cites
- 3761US2025313458A1Processes for low carbon intensity hydrogen productionCHEVRON USA INC·Filed 2024·Application pending·0 cites
- 3860US2024165596A1Molecular sieve ssz-93, catalyst, and methods of use thereofCHEVRON USA INC·Filed 2022·Application pending·0 cites
- 3960US2010152027A1Ionic liquid catalyst having a high molar ratio of aluminum to nitrogenCHEVRON USA INC·Filed 2008·Application pending·0 cites
- 4058US9815043B2Apparatus for reducing organic halide contamination in hydrocarbon products using a metal chlorideLACHEEN HOWARD STEVEN·Filed 2015·Granted Nov 14, 2017·0 cites·13 claims
- 4157US2014031194A1Integral Synthesis Gas Conversion Catalyst Extrudates and Methods For Preparing and Using Same.JOTHIMURUGESAN KANDASWAMY·Filed 2013·Application pending·0 cites
- 4256US8936768B2Alkylation process unit for producing high quality gasoline blending components in two modesTIMKEN HYE KYUNG CHO·Filed 2012·Granted Jan 20, 2015·0 cites·19 claims
- 4356US8323478B2Process for measuring and adjusting halide in an alkylation reactorHOMMELTOFT SVEN IVAR·Filed 2011·Granted Dec 4, 2012·0 cites·31 claims
- 4453US2013066121A1Hydroisomerization and selective hydrogenation of feedstock in ionic liquid-catalyzed alkylationZHAN BI-ZENG·Filed 2012·Application pending·0 cites
- 4553US2011092753A1Hydroisomerization and selective hydrogenation of feedstock in ionic liquid-catalyzed alkylationZHAN BI-ZENG·Filed 2009·Application pending·0 cites
- 4652US2014336286A1Modified Fischer-Tropsch Monolith Catalysts and Methods For Preparation and Use ThereofKIBBY CHARLES LEONARD·Filed 2014·Application pending·0 cites
- 4752US2013158138A1Integral synthesis gas conversion catalyst extrudates and methods for preparing and using sameJOTHIMURUGESAN KANDASWAMY·Filed 2011·Application pending·0 cites
- 4852US2016002542A1Decomposition of organic chloride in alkylate using metals and alloysLACHEEN HOWARD STEVEN·Filed 2014·Application pending·0 cites
- 4950US2010320125A1Reduction of organic halide contamination in hydrocarbon productsCHEVRON USA INC·Filed 2010·Application pending·0 cites
- 5050US2010152518A1Process to make a liquid catalyst having a high molar ratio of aluminum to nitrogenCHEVRON USA INC·Filed 2008·Application pending·0 cites
Showing the top 50 of 53 patent records by PatentIndex Score.
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