Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4839023 | Once-through coking with hydrotreating and fluid catalytic cracking | Francis X. Mayer, Joseph P. Matula, David W. Staubs | 1989-06-13 |
| 4834864 | Once-through coking with solids recycle | Francis X. Mayer, Joseph P. Matula, David W. Staubs | 1989-05-30 |