Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4729431 | Oil recovery by quenched in situ combustion | — | 1988-03-08 |
| 4649997 | Carbon dioxide injection with in situ combustion process for heavy oils | — | 1987-03-17 |
| 4638864 | Recovery of heavy crude oil from shallow formations by in situ combustion | — | 1987-01-27 |
| 4438814 | Oil recovery method employing alternate slugs of surfactant and fresh water | — | 1984-03-27 |
| 4271906 | Oil recovery method employing alternate slugs of surfactant and fresh water solution of sacrificial agent | Benny HO | 1981-06-09 |
| 4266611 | Oil recovery method employing alternate slugs of surfactant and fresh water solution of polymer | Benny HO | 1981-05-12 |
| 4230182 | Oil recovery method employing alternate slugs of surfactant fluid and fresh water | — | 1980-10-28 |
| 4194562 | Method for preconditioning a subterranean oil-bearing formation prior to in-situ combustion | Donald L. Hoyt, Ralph J. Korstad | 1980-03-25 |