Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4687646 | Cold crucible for melting and crystallizing non-metallic inorganic compounds | Rolf Laurien, Manfred Liehr | 1987-08-18 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4687646 | Cold crucible for melting and crystallizing non-metallic inorganic compounds | Rolf Laurien, Manfred Liehr | 1987-08-18 |