Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5324488 | Continuous liquid silicon recharging process in czochralski crucible pulling | Reinhard Lang | 1994-06-28 |
| 5242531 | Continuous liquid silicon recharging process in Czochralski crucible pulling | Reinhard Lang | 1993-09-07 |