Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4545568 | Unfired refractory structural member in the form of a plate for use as an expendable lining of metallurgical vessels | Hans Rothfuss, Peter Schreiter | 1985-10-08 |
| 4468780 | Method of lining a steel-making furnace | Franz Schellberg, Bernard Kauffeisen, Manfred Oberbach, Gerhard Zingel | 1984-08-28 |