Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4775134 | Arrangement for preheating scrap | Rupert Berger | 1988-10-04 |
| 4234171 | Mixing arrangement | Ernst Riegler, Manfred Schmidt | 1980-11-18 |
| 4188021 | Metallurgical vessel cooling and safety system | Manfred Eysn | 1980-02-12 |