Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5645791 | Charge preheater | Gerhard Fuchs, Joachim Ehle | 1997-07-08 |
| 4615036 | Cooling the electrode connection in an arc furnace | Luciano Ambrosi, Ludger Zangs, Friedrich Nordmeyer | 1986-09-30 |