Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4936548 | Rotary gate valve arrangement | Otto Heinemann, Dietrich Kornetzky, Hans-Joachim Golz | 1990-06-26 |
| 4461740 | Process for spin-stretching of high strength technical yarns | Gunter Koschinek, Dietmar Wandel | 1984-07-24 |