Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6139807 | Apparatus for removing SO.sub.2 from flue gases and for producing ammonium sulfate solution | Theo Risse | 2000-10-31 |
| 6063352 | Method of removing sulfur dioxide from flue gases, especially power plant flue gases and flue gases from garbage incinerator plants | Theo Risse | 2000-05-16 |