Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4428308 | Linear down-draft biomass gasifier | Jerry L. Birchfield | 1984-01-31 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4428308 | Linear down-draft biomass gasifier | Jerry L. Birchfield | 1984-01-31 |