Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4459136 | Apparatus for drying, pyrolyzing, and gasifying lump wood | Josef Weisz | 1984-07-10 |
| 4231302 | Apparatus and process for burning of fuels of relatively young geological age and of any resulting gases | — | 1980-11-04 |