Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9738531 | Process for producing polycrystalline silicon | Barbara Mueller, Walter Haeckl | 2017-08-22 |
| 7922876 | Method for processing an etching mixture which is formed during the production of highly pure silicon | Hanns Wochner, Christian Gossmann | 2011-04-12 |