Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6355588 | Process for treating filter dusts | Wilfried Kalchauer, Hubert Bruckmeier | 2002-03-12 |
| 5490162 | Process and device for the continuous treatment of silicon | Anton More, Rudolf Koch | 1996-02-06 |