Issued Patents 2004
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6817212 | Skull pot for melting or refining glass or glass ceramics | Hildegard Römer, Guido Räke, Werner Kiefer, Michael Kohl, Wolfgang Schmidbauer | 2004-11-16 |
| 6806216 | Zinc-containing optical glass materials | Ina Mitra, Danuta Grabowski, Paul Kissl | 2004-10-19 |
| 6757317 | Device for melting or purifying of inorganic sustances | Christian Kunert, Hildegard Römer | 2004-06-29 |
| 6698244 | Method for refining molten glass | Hildegard Römer, Werner Kiefer, Detlef Köpsel, Peter Nass, Erich Rodek +1 more | 2004-03-02 |