Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9534845 | Method for manufacturing a refractory for an inner lining of a blast furnace and blast furnace having the inner lining | Christian Wiebel, Frank Hiltmann | 2017-01-03 |
| 9422199 | Composite refractory for an inner lining of a blast furnace | Chirstian Wiebel, Frank Hiltmann | 2016-08-23 |