Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5720919 | Al.sub.2 O.sub.3 and Y.sub.2 O.sub.3 containing silicon nitride having high mechanical strength at high temperatures | Cornelia Boberski, Hartmut Kruner, Gunter Riedel | 1998-02-24 |
| 5556815 | High temperature resistant silicon nitride ceramic | Cornelia Boberski, Hartmut Kruner, Gunter Riedel | 1996-09-17 |