Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6401323 | Method of producing welded Cu and Cu alloy pipes | Erling Roller, Peter Kalkenings | 2002-06-11 |
| 5800088 | Quick-changing device for roll disks | Lothar Luckhof | 1998-09-01 |
| 5366001 | Method of manufacturing rolled material from oxygen-free copper | Lev P. Freedman, Yermek B. Khafizov, Elmar Buch, Kurt Siebel | 1994-11-22 |
| 4770228 | Metal casting device equipped with a continuously rotating supporting element | Gerd Artz, Dieter Figge | 1988-09-13 |