Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6159284 | Process and device for producing a cylindrical single crystal and process for cutting semiconductor wafers | Holger Lundt, Christian Andrae, Josef Frumm | 2000-12-12 |
| 6153008 | Device and method for pulling a single crystal | Wilfried von Ammon, Erich Dornberger, Franz Segieth | 2000-11-28 |
| 5951753 | Method and device for producing monocrystals | Erich Dornberger, Wilfried von Ammon, Dieter Graf | 1999-09-14 |
| 5868831 | Process for controlling the growth of a crystal | Erich Dornberger, Wilfried von Ammon, Franz Wasmeier, Francois Dupret, Vincent Wertz +1 more | 1999-02-09 |