Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6090171 | Stabilized thermally beneficiated low rank coal and method of manufacture | Jeff M. Richards | 2000-07-18 |
| 5863304 | Stabilized thermally beneficiated low rank coal and method of manufacture | Jeff M. Richards | 1999-01-26 |