Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8691009 | Crystal pulling apparatus and method for the production of heavy crystals | Burkhard Altekruger, Stefan Henkel, Erich Tomzig, Dieter Knerer | 2014-04-08 |
| 7828897 | Crystal pulling apparatus and method for the production of heavy crystals | Burkhard Altekruger, Stefan Henkel, Erich Tomzig, Dieter Knerer | 2010-11-09 |
| 7261773 | Melting crucible | Andreas Muhe, Burkhard Altekruger | 2007-08-28 |
| 7179331 | Crystal growing equipment | Andreas Muhe, Burkhard Altekruger | 2007-02-20 |