Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4865625 | Method of producing pyrolysis gases from carbon-containing materials | Lyle K. Mudge, Michael Brown, Wayne A. Wilcox | 1989-09-12 |
| 4795841 | Process for upgrading biomass pyrolyzates | Douglas C. Elliott | 1989-01-03 |