Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5164138 | Material comprising silicon and process for its manufacture | Josef Dietl, Rolf Bauregger, Erich Bildl, Rudolf Rothlehner, Dieter Seifert +2 more | 1992-11-17 |
| 4767585 | Process for producing molded bodies from granular material of silicon, germanium or mixed crystals of these elements | Claus Holm, Josef Dietl, Franz Holzlwimmer | 1988-08-30 |
| 4461671 | Process for the manufacture of semiconductor wafers | Dieter Seifert, Cord Gessert | 1984-07-24 |
| 4431475 | Process for making doped semiconductors | Claus Holm | 1984-02-14 |
| 4366024 | Process for making solar cell base material | Gerhard Ast, Josef Dietl, Dieter Helmreich, Hans-Dieter Miller | 1982-12-28 |
| 4312700 | Method for making silicon rods | Dieter Helmreich, Theo Zollner | 1982-01-26 |
| 4312850 | Semicontinuous process for the manufacture of pure silicon | Josef Dietl, Claus Holm | 1982-01-26 |
| 4194028 | Process for applying a protective layer to shaped carbon bodies | Heinz-Jorg Rath | 1980-03-18 |