Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6077797 | Green decoration coloring substance for high-temperature firing, process for its production and use thereof | Jorg Sperlich, Stephan Ludwig, Dietrich Speer, Kai Dorer | 2000-06-20 |