Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5944984 | Solvent deasphalting unit and method for using the same | Richard L. Hood, Philip Rettger | 1999-08-31 |
| 5804060 | Method of and apparatus for producing power in solvent deasphalting units | Richard L. Hood, Philip Rettger | 1998-09-08 |