Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8697023 | Method for producing high-purity silicon nitride | — | 2014-04-15 |
| 5114693 | Process for the production of silicon nitride and product made according to the process | Jochen Hintermayer, Ernst Graf, Werner Gmohling, Wolfgang Kobler | 1992-05-19 |