Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5366001 | Method of manufacturing rolled material from oxygen-free copper | Lev P. Freedman, Yermek B. Khafizov, Kurt Siebel, Herbert Berendes | 1994-11-22 |
| 4807458 | Dividing gear unit for a roll block | Jurgen Greff, Rene Marzinkewitsch, Herbert Vogelgesang | 1989-02-28 |