Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4940568 | Arrangement for the continuous melting of granulated silicon for a band-drawing method | Gerhard Hoyler, Josef Grabmaier, Richard Falckenberg | 1990-07-10 |
| 4913199 | Arrangement for the complete emptying of quartz tanks or crucibles filled with a silicon melt following silicon band drawing | Richard Falckenberg, Gerhard Hoyler, Josef Grabmaier | 1990-04-03 |
| 4481235 | Apparatus and method for manufacturing tape-shaped silicon bodies for solar cells | Helmut Foell, Karl Geim, Josef Grabmaier, Otmar Hintringer | 1984-11-06 |