Issued Patents 2011
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7981823 | Transparent glass ceramic plate that has an opaque, colored bottom coating over the entire surface or over part of the surface | Friedrich Siebers, Ulrich Schiffner, Wolfgang Schmidbauer, Petra Grewer, Erich Rodek | 2011-07-19 |