Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5338441 | Liquefaction process | Steve C. LeViness, Michael Y. Wen, Stephen M. Davis, Claude C. Culross, Peter S. Maa | 1994-08-16 |
| 4347117 | Donor solvent coal liquefaction with bottoms recycle at elevated pressure | Richard F. Bauman, John W. Taunton, George H. Anderson, Ken Lee TRACHTE | 1982-08-31 |