Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5980725 | Method for upgrading waste material comprising sheet metal with a zinc plating on at least one side thereof | Bernard Campenon | 1999-11-09 |
| 5609841 | Method and apparatus for treating a flow of gas containing oxidized sulphur compounds | Adrianus Den Hartog | 1997-03-11 |
| 5225176 | Process for the removal of sulfur oxide constituents from a waste gas | — | 1993-07-06 |