Issued Patents All Time
Showing 76–78 of 78 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4334893 | Recovery of alkali metal catalyst constituents with sulfurous acid | — | 1982-06-15 |
| 4318712 | Catalytic coal gasification process | Joanne K. Pabst | 1982-03-09 |
| 4200439 | Gasification process using ion-exchanged coal | — | 1980-04-29 |