Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9428421 | Method for producing a refractory material based on magnesia or magnesia spinel, and refractory material based on magnesia or magnesia spinel | Harald Harmuth, Zoltan Lences, Pavol Sajgalik | 2016-08-30 |
| 9334190 | Refractory ceramic batch and brick formed therefrom | Harald Harmuth | 2016-05-10 |