Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4952539 | Method for the manufacture of transparent aluminum oxide ceramic | Heidemarie Melas | 1990-08-28 |
| 4421876 | Resinous compositions containing modified alumina hydrate crystals | Gunter Winkhaus | 1983-12-20 |
| 4340579 | Process for producing modified alumina hydrate crystals | Gunter Winkhaus | 1982-07-20 |