Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4313499 | Subterranean gasification of bituminous coal | Shirley C. Tsai, Robin R. Oder | 1982-02-02 |
| 4299285 | Underground gasification of bituminous coal | Shirley C. Tsai, Robin R. Oder | 1981-11-10 |
| 4296809 | In situ gasification of bituminous coal | Shirley C. Tsai, Robin R. Oder | 1981-10-27 |