Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5738702 | Apparatus for holding a hollow cylinder of silicon dioxide soot | Klaus Ruppert, Uwe Christiansen, Michael Hünermann, Anton Steinkohl | 1998-04-14 |
| 5665132 | Process for the sintering of hollow cylinders of silicon dioxide soot | Klaus Ruppert, Uwe Christiansen, Michael Hünermann, Anton Steinkohl | 1997-09-09 |
| 5665139 | Mold for production of a quartz glass component | Klaus Ruppert, Uwe Christiansen | 1997-09-09 |