Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4379110 | Sintering of silicon nitride to high density | Charles D. Greskovich, Svante Prochazka | 1983-04-05 |
| 4279656 | Light-transmitting silicon nitride | Charles D. Greskovich, Svante Prochazka | 1981-07-21 |