Inventor · disambiguated record
Guan-Dao Lei
Also filed as: LEI GUAN-DAO
31 granted patents·33 pending applications·232 citations·filing 2003–2024
96Inventor score
Files withCHEVRON USA INC56KRISHNA KAMALA3OJO ADEOLA FLORENCE3KRISHNA KAMALA RAGHUNATHAN1ZHAN BI-ZENG1
Top patents by PatentIndex Score
64 records- 0198US9920260B2Processes using molecular sieve SSZ-91CHEVRON USA INC·Filed 2015·Granted Mar 20, 2018·30 cites·18 claims
- 0298US9802830B2Molecular sieve SSZ-91CHEVRON USA INC·Filed 2015·Granted Oct 31, 2017·23 cites·30 claims
- 0397US11229903B1Hydroisomerization catalyst with improved thermal stabilityCHEVRON USA INC·Filed 2020·Granted Jan 25, 2022·5 cites·21 claims
- 0497US11001502B2Molecular sieve SSZ-91, methods for preparing SSZ-91, and uses for SSZ-91CHEVRON USA INC·Filed 2020·Granted May 11, 2021·4 cites·16 claims
- 0597US9616419B2Hydroisomerization catalyst manufactured using a high nanopore volume alumina supportsCHEVRON USA INC·Filed 2015·Granted Apr 11, 2017·8 cites·20 claims
- 0696US10618816B2Molecular sieve SSZ-91, methods for preparing SSZ-91, and uses for SSZ-91CHEVRON USA INC·Filed 2016·Granted Apr 14, 2020·14 cites·8 claims
- 0794US11865527B2Hydroisomerization catalystsCHEVRON USA INC·Filed 2021·Granted Jan 9, 2024·2 cites·15 claims
- 0893US8790507B2Catalytic processes and systems for base oil production using zeolite SSZ-32xKRISHNA KAMALA·Filed 2011·Granted Jul 29, 2014·14 cites·16 claims
- 0992US12319881B1Converting a renewable fuel intermediate composition to finished transportation fuelCHEVRON USA INC·Filed 2024·Granted Jun 3, 2025·4 cites·33 claims
- 1091US8475648B2Catalytic processes and systems for base oil production from heavy feedstockKRISHNA KAMALA·Filed 2011·Granted Jul 2, 2013·10 cites·14 claims
- 1190US6933323B2Production of stable olefinic fischer tropsch fuels with minimum hydrogen consumptionCHEVRON USA INC·Filed 2003·Granted Aug 23, 2005·31 cites·20 claims
- 1289US10196575B2Lubricating base oil productionZHAN BI ZENG·Filed 2014·Granted Feb 5, 2019·5 cites·20 claims
- 1389US9677016B2Catalytic processes and systems for base oil production using zeolite SSZ-32XCHEVRON USA INC·Filed 2014·Granted Jun 13, 2017·6 cites·14 claims
- 1488US10052619B2Method for making molecular sieve SSZ-95CHEVRON USA INC·Filed 2017·Granted Aug 21, 2018·2 cites·19 claims
- 1585US9573124B2Method for making molecular sieve SSZ-95OJO ADEOLA FLORENCE·Filed 2014·Granted Feb 21, 2017·4 cites·19 claims
- 1684US7179364B2Production of stable olefinic Fischer-Tropsch fuels with minimum hydrogen consumptionCHEVRON USA INC·Filed 2003·Granted Feb 20, 2007·28 cites·20 claims
- 1782US10272422B2Molecular sieve SSZ-95, method of making, and useOJO ADEOLA FLORENCE·Filed 2018·Granted Apr 30, 2019·1 cites·15 claims
- 1881US8617387B2Catalytic processes and systems for base oil production from light feedstockKRISHNA KAMALA·Filed 2011·Granted Dec 31, 2013·4 cites·14 claims
- 1980US12398331B2Catalyst and process using SSZ-91 and ZSM-12CHEVRON USA INC·Filed 2021·Granted Aug 26, 2025·0 cites·17 claims
- 2079US7431821B2High purity olefinic naphthas for the production of ethylene and propyleneCHEVRON USA INC·Filed 2003·Granted Oct 7, 2008·12 cites·18 claims
- 2179US7150821B2High purity olefinic naphthas for the production of ethylene and propyleneCHEVRON USA INC·Filed 2003·Granted Dec 19, 2006·9 cites·27 claims
- 2275US2024367159A1Molecular sieve ssz-92, catalyst, and methods of use thereofCHEVRON USA INC·Filed 2022·Application pending·0 cites
- 2374US12090468B2High nanopore volume hydrotreating catalyst and processCHEVRON USA INC·Filed 2021·Granted Sep 17, 2024·0 cites·22 claims
- 2473US12486465B2Method for producing high quality base oils using multiple stage processingCHEVRON USA INC·Filed 2022·Granted Dec 2, 2025·0 cites·17 claims
- 2573US11679987B2SSZ-91 catalystCHEVRON USA INC·Filed 2021·Granted Jun 20, 2023·0 cites·15 claims
- 2672US11987757B2Processes for producing diesel from unconventional feedstocksCHEVRON USA INC·Filed 2020·Granted May 21, 2024·0 cites·36 claims
- 2772US6872752B2High purity olefinic naphthas for the production of ethylene and propyleneCHEVRON USA INC·Filed 2003·Granted Mar 29, 2005·15 cites·20 claims
- 2872US2024299918A1Hydroisomerization catalystsCHEVRON USA INC·Filed 2022·Application pending·0 cites
- 2972US2024100513A1Hydroisomerization catalyst with improved thermal stabilityCHEVRON USA INC·Filed 2021·Application pending·0 cites
- 3071US9796936B2Production of heavy API group II base oilCHEVRON USA INC·Filed 2015·Granted Oct 24, 2017·1 cites·11 claims
- 3171US2023415134A1Catalyst System And Process Using SSZ-91 And SSZ-95CHEVRON USA INC·Filed 2021·Application pending·0 cites
- 3271US2024058802A1High Nanopore Volume Catalyst And Process Using SSZ-91CHEVRON USA INC·Filed 2021·Application pending·0 cites
- 3369US11441085B2Process to make finished base oils and white oils from dewaxed bulk base oilsCHEVRON USA INC·Filed 2020·Granted Sep 13, 2022·0 cites·13 claims
- 3469US2024141237A1Processes for producing diesel from unconventional feedstocksCHEVRON USA INC·Filed 2021·Application pending·0 cites
- 3568US2024409831A1Process to make a renewable product from biofeedstockCHEVRON USA INC·Filed 2024·Application pending·0 cites
- 3667US11873455B2Process having improved base oil yieldCHEVRON USA INC·Filed 2020·Granted Jan 16, 2024·0 cites·29 claims
- 3767US2022305471A1Molecular sieve ssz-92, catalyst, and methods of use thereofCHEVRON USA INC·Filed 2021·Application pending·0 cites
- 3867US2022162508A1Catalyst and process using ssz-91 and zsm-12CHEVRON USA INC·Filed 2020·Application pending·0 cites
- 3966US2022228074A1Method for producing high quality base oils using multiple stage processingCHEVRON USA INC·Filed 2021·Application pending·0 cites
- 4066US2022143588A1Catalyst system and process using ssz-91 and ssz-95CHEVRON USA INC·Filed 2020·Application pending·0 cites
- 4165US11396631B2Process providing improved base oil yieldCHEVRON USA INC·Filed 2020·Granted Jul 26, 2022·0 cites·25 claims
- 4265US2023338934A1Molecular sieve ssz-92, catalyst, and methods of use thereofCHEVRON USA INC·Filed 2023·Application pending·0 cites
- 4365US2022143587A1High nanopore volume catalyst and process using ssz-91CHEVRON USA INC·Filed 2020·Application pending·0 cites
- 4465US2024059987A1Process having improved base oil yieldCHEVRON USA INC·Filed 2021·Application pending·0 cites
- 4565US2024076563A1Improved Process to Make Finished Base Oils and White Oils from Dewaxed Bulk Base OilsCHEVRON USA INC·Filed 2021·Application pending·0 cites
- 4663US2024327731A1Process providing improved base oil yieldCHEVRON USA INC·Filed 2021·Application pending·0 cites
- 4763US2017275539A1Catalytic processes and systems for base oil production using zeolite ssz-32xCHEVRON USA INC·Filed 2017·Application pending·0 cites
- 4862US11559789B2Base oil hydrotreating catalyst and process of useCHEVRON USA INC·Filed 2021·Granted Jan 24, 2023·0 cites·30 claims
- 4960US2024165596A1Molecular sieve ssz-93, catalyst, and methods of use thereofCHEVRON USA INC·Filed 2022·Application pending·0 cites
- 5056US2024110120A1Method for making base oil with enhanced color stabilityCHEVRON USA INC·Filed 2022·Application pending·0 cites
Showing the top 50 of 64 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →