Issued Patents All Time
Showing 26–28 of 28 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4198230 | Steelmaking process | Hans-Georg Fassbinder | 1980-04-15 |
| 4195985 | Method of improvement of the heat-balance in the refining of steel | — | 1980-04-01 |
| 4196159 | Process for increasing the life of the refractory masonry of metallurgical vessels | Paul-Gerhard Mantey | 1980-04-01 |