Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4880439 | High temperature desulfurization of synthesis gas | Mitri S. Najjar | 1989-11-14 |
| 4828579 | Thermally insulated quench ring for a gasifier | Michael W. Becker, John Saunders Stevenson | 1989-05-09 |