Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6375011 | Vibrating conveyor and method for conveying silicon fragments | Dirk Flottmann, Matthaus Schantz, Friedrich Steudten | 2002-04-23 |
| 6040544 | Optoelectronic separation apparatus | Matthaus Schantz, Dirk Flottmann | 2000-03-21 |
| 6024306 | Device and method for fragmenting semiconductor material | Paul Fuchs | 2000-02-15 |
| 5820688 | Method for the treatment of semiconductor material | Friedrich Steudten, Matthaus Schantz | 1998-10-13 |
| 5660335 | Method and device for the comminution of semiconductor material | Matthaus Schantz | 1997-08-26 |
| 4536642 | Device for treating gases at high temperatures | Helmut Hamster | 1985-08-20 |
| 4515762 | Process for processing waste gases resulting during the production of silicon | Rudolf Griesshammer, Winfried Lang, Ernst Muhlhofer, Michael Schwab | 1985-05-07 |
| 4454104 | Process for working up the residual gases obtained in the deposition of silicon and in the conversion of silicon tetrachloride | Rudolf Griesshammer, Helmut Lorenz, Friedrich Steudten | 1984-06-12 |
| 4311545 | Method for the deposition of pure semiconductor material | Erwin Bugl, Rudolf Griesshammer, Helmut Lorenz, Helmut Hamster | 1982-01-19 |
| 4252780 | Process for working up hydrolyzable and/or water-soluble compounds | Thorgard Zainer | 1981-02-24 |
| 4213830 | Method for the transfer of heat | — | 1980-07-22 |
| 4211040 | Process for machining silicon rods and tubes by abrasion | Friedrich Steudten | 1980-07-08 |