Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5054033 | Tiltable arc furnace | Heinrich Schnitzer, Rolf Baare, Hannsgeorg Bauer, Josef Otto | 1991-10-01 |
| 4523747 | Discharging molten metal from a smelting furnace | Heinrich Schnitzer | 1985-06-18 |
| 4387464 | Vessel for an electro furnace | — | 1983-06-07 |
| 4345332 | Cover for vessel for a metal melting furnace, in particular an electric arc furnace | — | 1982-08-17 |