Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6413307 | Method of producing a pigment containing gold | Steffen Heidenreich, Friedrich Wacker | 2002-07-02 |
| 6358562 | Method for the production of coated particles | Vinga Szabo, Bernd Seith | 2002-03-19 |