Issued Patents All Time
Showing 26–27 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4520622 | Stranding device | Gerhard Ziemek, Friedrich Schatz | 1985-06-04 |
| 4219400 | Electrolysis cell | Wolfram Treptow, Gerd Wunsch, Volker Kiener, Gotthard Csizi | 1980-08-26 |