Issued Patents 2005
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6846763 | Refractory repair material batch | Helge Jansen | 2005-01-25 |
| 6846766 | Carbonaceous refractory shaped body with improved oxidation behavior and batch composition and method for producing the same | Peter Bartha, Helge Jansen | 2005-01-25 |