Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8464792 | Conduction convection reflux retorting process | Alan K. Burnham, Roger L. Day, James R. McConaghy | 2013-06-18 |
| 8162043 | In situ method and system for extraction of oil from shale | Alan K. Burnham, Roger L. Day, James R. McConaghy | 2012-04-24 |
| 7921907 | In situ method and system for extraction of oil from shale | Alan K. Burnham, Roger L. Day, James R. McConaghy, Harry Gordon Harris, Paul Lerwick +1 more | 2011-04-12 |