Issued Patents 2021
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 10975291 | Method of selection of asphaltene precipitant additives and process for subsurface upgrading therewith | Cesar Ovalles, Estrella Rogel, Ronald A. Behrens | 2021-04-13 | $1,476,348,000 |