Issued Patents 1982
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4323447 | Coal Liquefaction process employing octahydrophenanthrene-enriched solvent | Howard G. McIlvried | 1982-04-06 |
| 4322284 | Solvent refining of coal using octahydrophenanthrene-enriched solvent and coal minerals recycle | Howard G. McIlvried | 1982-03-30 |
| 4313499 | Subterranean gasification of bituminous coal | Richard H. Graham, Robin R. Oder | 1982-02-02 |
| 4312746 | Catalytic production of octahydrophenanthrene-enriched solvent | Howard G. McIlvried | 1982-01-26 |