Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4443264 | Halogen-free zinc ferrite yellow pigments containing alumina and phosphorus oxide and production | Franz Hund, Horst Brunn, Peter Kresse, Wolfgang Rambold | 1984-04-17 |