Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4458946 | Secondary oil shale recovery technique | Kanaan Hanna, Chang Y. Cha | 1984-07-10 |
| 4379590 | Ventilation air and process air distribution for in situ oil shale retorts | Eugene A. Mills, David E. Miall | 1983-04-12 |
| 4345794 | Placement of explosive for forming in situ oil shale retort | Harry E. McCarthy, Melvin A. Cook | 1982-08-24 |
| 4266612 | In situ recovery of shale oil | — | 1981-05-12 |
| 4266826 | In-situ recovery of constituents from fragmented ore | — | 1981-05-12 |
| 4239285 | Method of attenuating airblast from detonating explosive in an in situ oil shale retort | — | 1980-12-16 |