Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4551206 | Apparatus with moving bed pressure letdown stage for recovering retorted oil shale | Roland F. Deering | 1985-11-05 |
| 4523979 | Apparatus for recovery of retorted shale from an oil shale retorting process | Roland F. Deering | 1985-06-18 |
| 4446001 | Recovery of retorted shale from an oil shale retorting process | Roland F. Deering | 1984-05-01 |
| 4435271 | Oil shale retorting process with a moving bed pressure letdown stage | Roland F. Deering | 1984-03-06 |