Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4832823 | Coking process with decant oil addition to reduce coke yield | Gary S. Faagau | 1989-05-23 |
| 4824526 | System for continuously and catalytically removing arsenic from shale oil and regenerating the catalyst | — | 1989-04-25 |