Inventor
ROGEL ESTRELLA
US12 patents
⚠️ This page may combine multiple inventors who share the name “ROGEL ESTRELLA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CHEVRON USA INC
6 patentsUS9670760B2Jun 6, 2017
Process for in situ upgrading of a heavy hydrocarbon using asphaltene precipitant additives
CHEVRON USA INC8 citations83
US11236281B2Feb 1, 2022
Production of stable fuel oils
CHEVRON USA INC11 citations78
US12299863B2May 13, 2025
Coke morphology by image segmentation
CHEVRON USA INC0 citations53
US10907473B2Feb 2, 2021
Low volume in-line filtration methods for analyzing hydrocarbon-containing fluid to evaluate asphaltene content and behavior during production operations
CHEVRON USA INC0 citations50
US10975291B2Apr 13, 2021
Method of selection of asphaltene precipitant additives and process for subsurface upgrading therewith
CHEVRON USA INC0 citations44
US11948666B2Apr 2, 2024
Systems and processes for predicting asphaltene blend compatibility
CHEVRON USA INC0 citations40
OVALLES CESAR
2 patentsUS9255043B2Feb 9, 2016
Liquid crude hydrocarbon composition
OVALLES CESAR9 citations77
US9921205B2Mar 20, 2018
Method 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 conditions
OVALLES CESAR2 citations69