Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4908173 | Process for preparation of dense molded bodies of polycrystalline aluminum nitride without use of sintering aids | Karl-Alexander Schwetz, Wolfgang Grellner, Klaus Hunold, Alfred Lipp | 1990-03-13 |
| 4803183 | Dense molded bodies of polycrystalline aluminum nitride and process for preparation without use of sintering aids | Karl-Alexander Schwetz, Wolfgang Grellner, Klaus Hunold, Alfred Lipp | 1989-02-07 |