Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6485841 | Bio-oil preservatives | Barry A. Freel | 2002-11-26 |
| 6381963 | High temperature intermittently sealable refractory tile and controlled air continuous gasifiers manufactured therewith | — | 2002-05-07 |