Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4940568 | Arrangement for the continuous melting of granulated silicon for a band-drawing method | Gerhard Hoyler, Josef Grabmaier, Bernhard Freienstein | 1990-07-10 |
| 4913199 | Arrangement for the complete emptying of quartz tanks or crucibles filled with a silicon melt following silicon band drawing | Gerhard Hoyler, Bernhard Freienstein, Josef Grabmaier | 1990-04-03 |
| 4871517 | Apparatus for parting wafer-shaped silicon bodies, useful for solar cells, from a silicon tape manufactured in a horizontal tape-drawing method | Gerhard Hoyler, Josef Grabmaier | 1989-10-03 |
| 4664745 | Method and apparatus for manufacturing tape-shaped silicon crystals with a threaded carrier | Josef Grabmaier | 1987-05-12 |
| 4657627 | Carbon fiber substrate pretreatment for manufacturing crack-free, large-surface silicon crystal bodies for solar cells | Lore Bernewitz, Gerhard Hoyler, Josef Grabmaier | 1987-04-14 |
| 4599244 | Method large-area silicon bodies | Christa Grabmaier, Josef Grabmaier | 1986-07-08 |
| 4599245 | Method for making large-surface silicon crystal bodies | Christa Grabmaier, Josef Grabmaier | 1986-07-08 |
| 4563979 | Apparatus for manufacturing large-surface, band-shaped silicon for solar cells | Josef Grabmaier | 1986-01-14 |
| 4563976 | Device for manufacturing large-surface, tape-shaped silicon bodies for solar cells | Helmut Foell, Josef Grabmaier | 1986-01-14 |
| 4554203 | Method for manufacturing large surface silicon crystal bodies for solar cells, and bodies so produced | Josef Grabmaier | 1985-11-19 |
| 4533428 | Method and device for asymmetrically coating a tape-shaped carrier body with silicon for further processing into solar cells | Josef Grabmaier, Helmut Foll | 1985-08-06 |
| 4505221 | Device for asymmetrically coating a tape-shaped carrier body with silicon for further processing into solar cells | Helmut Foell, Josef Grabmaier | 1985-03-19 |