Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6660167 | Method for precipitating or flocculating substances out of solutions | Gerhard Walder | 2003-12-09 |
| 6593379 | Method for converting a weakly acid ion exchanger material from the H form into the Ca form | Gerhard Walder | 2003-07-15 |