Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6113775 | Split end hydrocracking process | Donald B. Ackelson | 2000-09-05 |
| 5158714 | Vapor-liquid distribution method and apparatus | Chien-Cheng J. Shih | 1992-10-27 |
| 5013428 | Recovery of oil from a shale containing the same | Kimanh T. Le, Mitchell J. Berndt, Steven E. Howe | 1991-05-07 |
| 4543894 | Process for staged combustion of retorted oil shale | Charles Griswold | 1985-10-01 |