Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5630991 | Limestone-based wet flue gas desulfurization process | Michael L. Mengel | 1997-05-20 |
| 5624649 | Process for reduction of sulfur dioxide emission from combustion gases combined with production of potassium sulfate | — | 1997-04-29 |