Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6755049 | Method of producing a quartz glass crucible | Gabriele Korus, Hilmar Laudahn, Martin Arndt | 2004-06-29 |
| 6684664 | Process for manufacture of a component made of opaque synthetic quartz glass | Waltraud Werdecker, Johann Leist, Helmut Leber | 2004-02-03 |