Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4633540 | Tension tie member | Dieter Jungwirth, Otmar Langwadt | 1987-01-06 |
| 4498527 | Heat-exchanging roller | Wilhelm Gerarts, Eberhard Derichs | 1985-02-12 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4633540 | Tension tie member | Dieter Jungwirth, Otmar Langwadt | 1987-01-06 |
| 4498527 | Heat-exchanging roller | Wilhelm Gerarts, Eberhard Derichs | 1985-02-12 |