Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4879021 | Hydrogenation of coal and subsequent liquefaction of hydrogenated undissolved coal | Alfred G. Comolli, Robert O'Brien | 1989-11-07 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4879021 | Hydrogenation of coal and subsequent liquefaction of hydrogenated undissolved coal | Alfred G. Comolli, Robert O'Brien | 1989-11-07 |