Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5723394 | Refractory ceramic mass and its use | Harald Harmuth, Josef Deutsch | 1998-03-03 |
| 5573987 | Refractory ceramic mass and its use | Harald Harmuth, Josef Deutsch | 1996-11-12 |
| 5569631 | Refractory ceramic mass and its use | Harald Harmuth, Josef Deutsch | 1996-10-29 |
| 5552354 | Refractory brick | Harald Harmuth, Josef Deutsch | 1996-09-03 |
| 5426078 | Use of a finely divided, refractory, oxidic micropowder for preparing ceramic masses and moldings | — | 1995-06-20 |
| 5106608 | Magnesium oxide in fine powder form and its use | Alexander Retschnig | 1992-04-21 |