Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10975291 | Method of selection of asphaltene precipitant additives and process for subsurface upgrading therewith | Estrella Rogel, Ian Phillip Benson, Ronald A. Behrens | 2021-04-13 |
| 10907473 | Low volume in-line filtration methods for analyzing hydrocarbon-containing fluid to evaluate asphaltene content and behavior during production operations | Estrella Rogel, Michael E. Moir | 2021-02-02 |