Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6662872 | Combined steam and vapor extraction process (SAVEX) for in situ bitumen and heavy oil production | A. M. Harold Gutek, Brian Harschnitz, Tadahiro Okazawa | 2003-12-16 |
| 6511937 | Combination slurry hydroconversion plus solvent deasphalting process for heavy oil upgrading wherein slurry catalyst is derived from solvent deasphalted rock | Roby Bearden, Jr., Zhiguo Hou, Martin L. Gorbaty, David T. Ferrughelli | 2003-01-28 |