Issued Patents 1989
Showing 1–2 of 2 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, Te-Yu Chen | 1989-03-21 |
| 4804803 | Isomerization with once-through hydrogen | Robert J. Schmidt, Lynn H. Rice | 1989-02-14 |