Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6496295 | Glazing element | Andreas Georg, Wolfgang Graf | 2002-12-17 |
| 5916972 | Material having temperature-defendant light transmission | Wolfgang Eck, Hans-Joachim Cantow | 1999-06-29 |
| 5864994 | Glazing element, in particular for facing building facades | Wolfgang Graf, Andreas Georg, Michael Koehl, Franz Brucker, Andreas Gombert +1 more | 1999-02-02 |
| 4264147 | Indicator device having electro-optical light valve unit | Guenther Baur, Hans Krueger, Fritz Windscheid | 1981-04-28 |