Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6806216 | Zinc-containing optical glass materials | Ina Mitra, Danuta Grabowski, Uwe Kolberg | 2004-10-19 |
| 6802189 | Device and process for the remelting of glass | Andreas Langsdorf, Hildegard Römer | 2004-10-12 |