Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6362487 | Method and device for nondestructive detection of crystal defects | Andreas Ehlert, Michael Kerstan, Holger Lundt | 2002-03-26 |
| 4769107 | Process and apparatus for the cyclical manufacture of silicon shaped articles | Cord Gessert, Hans-Dieter Miller, Helmut Zauhar, Georg Priewasser, Leonhard Schmidhammer | 1988-09-06 |
| 4447289 | Process for the manufacture of coarsely crystalline to monocrystalline sheets of semiconductor material | Joachim Geissler | 1984-05-08 |
| 4366024 | Process for making solar cell base material | Gerhard Ast, Josef Dietl, Hans-Dieter Miller, Erhard Sirtl | 1982-12-28 |
| 4312700 | Method for making silicon rods | Erhard Sirtl, Theo Zollner | 1982-01-26 |