Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5308561 | Process for production of a Si.sub.3 N.sub.4, based material | Gerhard Leimer, Gerhard Wotting | 1994-05-03 |
| 5288672 | Ceramics based on aluminum titanate, process for their production and their use | Bernhard Freudenberg, Johannes Seyer | 1994-02-22 |