Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6773814 | Metal oxide particles coated with silicon dioxide | Helmut Mangold, Steffen Hasenzahl, Harald Alff | 2004-08-10 |
| 6767377 | Aqueous dispersion containing cerium oxide-coated silicon powder, process for the production thereof and use thereof | Helmut Mangold, Juergen Meyer, Wolfgang Lortz, Christoph Batz-Sohn | 2004-07-27 |