Issued Patents 2005
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6946030 | Method for the production of a silica glass crucible with crystalline regions from a porous silica glass green body | Fritz Schwertfeger, Holger Szillat, Ulrich Lambert, Axel Frauenknecht | 2005-09-20 |
| 6843848 | Semiconductor wafer made from silicon and method for producing the semiconductor wafer | Wilfried von Ammon, Rudiger Schmolke, Erich Daub | 2005-01-18 |