Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4814064 | Combination process for the conversion of a residual hydrocarbonaceous charge stock to produce middle distillate product | Darrell W. Staggs, Laurence O. Stine | 1989-03-21 |