Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7832483 | Methods of recovering hydrocarbons from oil shale and sub-surface oil shale recovery arrangements for recovering hydrocarbons from oil shale | — | 2010-11-16 |
| 6758289 | Method and apparatus for hydrocarbon subterranean recovery | Wayne Leroy Kelley, Andrew Ashby, Robert L. Ewen | 2004-07-06 |
| 4607888 | Method of recovering hydrocarbon using mining assisted methods | W. Ray Oakley | 1986-08-26 |