Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5173919 | Manipulation of the exit gas flow in a melting furnace | Erwin Schmidl, Michael Hirth, Christian Wieckert | 1992-12-22 |
| 4955587 | Arrangement for recovering molten pig iron or steel pre-products from lumpy iron-oxide containing charging substances | Horst Sulzbacher | 1990-09-11 |
| 4896810 | Apparatus for melting scrap | Walter Maschlanka | 1990-01-30 |
| 4895593 | Process of recovering molten pig iron or steel pre-products from lumpy iron-oxide and scrap using a fluidized bed | Horst Sulzbacher | 1990-01-23 |
| 4552342 | Method and apparatus for preheating and charging scrap in steelmaking | Karl-Dieter Hein, Helmut Seroka | 1985-11-12 |