Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5403365 | Process for low mercury coal | R. William Grimes, Robert E. Tweed | 1995-04-04 |
| 5322530 | Process for clean-burning fuel from low-rank coal | Vijay Sethi, Lee E. Brecher | 1994-06-21 |
| 5171406 | Fluidized bed selective pyrolysis of coal | Jer-Yu Shang, Chang Y. Cha | 1992-12-15 |
| 5087269 | Inclined fluidized bed system for drying fine coal | Chang Y. Cha, John E. Boysen | 1992-02-11 |