Inventor · disambiguated record
Cesar Ovalles
Also filed as: OVALLES CESAR · OVALLES CESAR FRANCISCO
25 granted patents·11 pending applications·264 citations·filing 1991–2025
95Inventor score
Top patents by PatentIndex Score
36 records- 0189US10137486B1Systems and methods for thermal treatment of contaminated materialCHEVRON USA INC·Filed 2018·Granted Nov 27, 2018·13 cites·25 claims
- 0287US9255043B2Liquid crude hydrocarbon compositionOVALLES CESAR·Filed 2011·Granted Feb 9, 2016·9 cites·10 claims
- 0384US9671384B2Low volume in-line filtration method for evaluation of asphaltenes for hydrocarbon-containing feedstockROGEL ESTRELLA·Filed 2014·Granted Jun 6, 2017·6 cites·28 claims
- 0482US9921203B2Method for predicting sediment content of a hydroprocessed hydrocarbon productROGEL ESTRELLA·Filed 2011·Granted Mar 20, 2018·6 cites·9 claims
- 0582US9739125B2Method for upgrading in situ heavy oilCHEVRON USA INC·Filed 2015·Granted Aug 22, 2017·5 cites·18 claims
- 0682US9670760B2Process for in situ upgrading of a heavy hydrocarbon using asphaltene precipitant additivesCHEVRON USA INC·Filed 2013·Granted Jun 6, 2017·8 cites·26 claims
- 0780US9284826B2Oil extraction using radio frequency heatingCAMPBELL MICHAEL JOHN·Filed 2013·Granted Mar 15, 2016·12 cites·20 claims
- 0880US9127213B2Method for predicting catalyst performanceKOMALARAJUN VARUT·Filed 2011·Granted Sep 8, 2015·7 cites·20 claims
- 0979US10184330B2Antenna operation for reservoir heatingCHEVRON USA INC·Filed 2016·Granted Jan 22, 2019·2 cites·24 claims
- 1077US5891829AProcess for the downhole upgrading of extra heavy crude oilINTEVEP SA·Filed 1997·Granted Apr 6, 1999·96 cites·9 claims
- 1175US6171479B1Microwave heated catalyst and processINTEVEP SA·Filed 1999·Granted Jan 9, 2001·36 cites·12 claims
- 1271US12208297B2Systems and methods for treating contaminated solid materialCHEVRON USA INC·Filed 2024·Granted Jan 28, 2025·0 cites·16 claims
- 1370US6017845AMicrowave heated catalyst and processINTEVEP SA·Filed 1998·Granted Jan 25, 2000·29 cites·18 claims
- 1469US9921205B2Method for determining the effectiveness of asphaltene dispersant additives for inhibiting or preventing asphaltene precipitation in a hydrocarbon-containing material subjected to elevated temperature and presssure conditionsOVALLES CESAR·Filed 2012·Granted Mar 20, 2018·2 cites·15 claims
- 1567US2019169512A1Method for determining asphaltene stability of a hydrocarbon-containing materialCHEVRON USA INC·Filed 2019·Application pending·0 cites
- 1666US2024279554A1Methods and Systems Utilizing Methane Pyrolysis Integrated with Carbon Dioxide Conversion for Producing Low-carbon Intensity FuelsCHEVRON USA INC·Filed 2024·Application pending·0 cites
- 1763US10865629B2Antenna operation for reservoir heatingCHEVRON USA INC·Filed 2018·Granted Dec 15, 2020·0 cites·22 claims
- 1863US2019170725A1Method for estimating sediment content of a hydroprocessed hydrocarbon-containing feedstockCHEVRON USA INC·Filed 2019·Application pending·0 cites
- 1962US10865628B2Antenna operation for reservoir heatingCHEVRON USA INC·Filed 2018·Granted Dec 15, 2020·0 cites·24 claims
- 2062US5269909AProcess for treating heavy crude oilINTEVEP SA·Filed 1991·Granted Dec 14, 1993·25 cites·15 claims
- 2159US2021106860A1Systems and methods for treating contaminated solid materialCHEVRON USA INC·Filed 2019·Application pending·0 cites
- 2257US9539455B2Method for soil treatmentHOELEN THOMAS·Filed 2015·Granted Jan 10, 2017·1 cites·10 claims
- 2357US2025262595A1Surface carbon mineralization process using petroleum refinery solid waste materialCHEVRON USA INC·Filed 2025·Application pending·0 cites
- 2455US12299863B2Coke morphology by image segmentationCHEVRON USA INC·Filed 2021·Granted May 13, 2025·0 cites·7 claims
- 2553US5321187ACatalyst for the direct conversion of methane to higher hydrocarbons and method for the preparation of sameINTEVEP SA·Filed 1993·Granted Jun 14, 1994·4 cites·5 claims
- 2652US2011062058A1Method for determining asphaltene stability of a hydrocarbon-containing materialCHEVRON USA INC·Filed 2010·Application pending·0 cites
- 2751US2022380660A1In situ upgrading of heavy hydrocarbon using one or more degradable solvents and one or more additivesCHEVRON USA INC·Filed 2022·Application pending·0 cites
- 2851US2011066441A1Method for predicting reactivity of a hydrocarbon-containing feedstock for hydroprocessingCHEVRON USA INC·Filed 2010·Application pending·0 cites
- 2950US2013124106A1Method for estimating sediment content of a hydroprocessed hydrocarbon-containing feedstockROGEL ESTRELLA·Filed 2011·Application pending·0 cites
- 3050US2011077311A1Method for handling viscous liquid crude hydrocarbonsCHEVRON USA INC·Filed 2009·Application pending·0 cites
- 3148US5212139ACatalyst for the direct conversion of methane to higher hydrocarbons and method for the preparation of sameINTEVEP SA·Filed 1992·Granted May 18, 1993·3 cites·17 claims
- 3242US10704371B2Low dielectric zone for hydrocarbon recovery by dielectric heatingCHEVRON USA INC·Filed 2017·Granted Jul 7, 2020·0 cites·24 claims
- 3341US10975291B2Method of selection of asphaltene precipitant additives and process for subsurface upgrading therewithCHEVRON USA INC·Filed 2018·Granted Apr 13, 2021·0 cites·21 claims
- 3440US10907473B2Low volume in-line filtration methods for analyzing hydrocarbon-containing fluid to evaluate asphaltene content and behavior during production operationsCHEVRON USA INC·Filed 2017·Granted Feb 2, 2021·0 cites·17 claims
- 3539US2012160015A1Methods for predicting fouling tendencies of hydrocarbon containing feedstocksOVALLES CESAR·Filed 2011·Application pending·0 cites
- 3630US9028680B2Method and system for processing viscous liquid crude hydrocarbonsDIECKMANN GUNTHER HANS·Filed 2010·Granted May 12, 2015·0 cites·17 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →