Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5657705 | Heat treatment furnace for waste and associated process | Gerard Martin, Ari Minkkinen | 1997-08-19 |
| 5644997 | Waste pyrolysis rotary furnace with internal heating | Gerard Martin | 1997-07-08 |