Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4648450 | Method of producing synthesis gas by underground gasification of coal using specific well configuration | Bruce W. Gash, Luis E. Arri, Elton B. Hunt, Jr. | 1987-03-10 |
| 4431055 | Method for selective plugging of depleted channels or zones in in situ oil shale retorts | — | 1984-02-14 |
| 4344486 | Method for enhanced oil recovery | — | 1982-08-17 |
| 4189447 | Substituted-hydroxytetrahydroindanones | Zoltan G. Hajos | 1980-02-19 |