Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6444028 | Charging material and holding system for the charging material | Axel Frauenknecht, Viktor Beer | 2002-09-03 |
| 6375011 | Vibrating conveyor and method for conveying silicon fragments | Dirk Flottmann, Franz Koppl, Friedrich Steudten | 2002-04-23 |
| 6360755 | Method for processing semiconductor material | Dirk Flottmann | 2002-03-26 |
| 6350313 | Method of producing a polycrystalline silicon rod | Heinz Kraus, Peter Niedermeier | 2002-02-26 |
| 6265683 | Semiconductor material classification device | Dirk Flottmann, Karl Hesse | 2001-07-24 |
| 6260712 | Air separation of polysilicon | Dirk Flottmann, Johann Heiss | 2001-07-17 |
| 6063697 | Crushing of silicon on ultrapure ice | Reinhard Wolf, Dirk Flottmann | 2000-05-16 |
| 6040544 | Optoelectronic separation apparatus | Franz Koppl, Dirk Flottmann | 2000-03-21 |
| 5820688 | Method for the treatment of semiconductor material | Franz Koppl, Friedrich Steudten | 1998-10-13 |
| 5660335 | Method and device for the comminution of semiconductor material | Franz Koppl | 1997-08-26 |