Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 4783199 | Method for producing a deactivated dried coal | John C. Bixel | 1988-11-08 | $17,723,000 |
| 4783200 | Method for passivating low rank dried coal | John C. Bixel | 1988-11-08 | $17,723,000 |
| 4778482 | Drying low rank coal and retarding spontaneous ignition | John C. Bixel | 1988-10-18 | $13,175,000 |
| 4661241 | Delayed coking process | Madhava Malladi | 1987-04-28 | $11,558,000 |
| 4200521 | Catalytic hydroprocessing of solvent refined coal to provide a liquid and a solid fuel | Thomas R. Stein, Roland H. Heck | 1980-04-29 |