Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6440377 | Method for reprocessing waste acid resulting from TiO2 production | Gunter Lailach, Ulrich Meisen, Werner Schuy | 2002-08-27 |
| 6416723 | Method for reprocessing waste acid to form gypsum and iron oxide | Gunter Lailach, Ulrich Meisen, Werner Schuy | 2002-07-09 |