Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6800354 | Substrates with a self-cleaning surface, a process for their production and their use | Martin Baumann, Klaus-Dieter Fritsche, Dagmar Korbelarz, Stephan Ludwig | 2004-10-05 |
| 6773498 | Bright precious metals preparation for baking in at high temperatures and uses thereof for producing decorative bright precious metal elements | Hans-Michael Groh, Peter Lang | 2004-08-10 |