Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4927570 | Method for manufacturing optical cables | Otto Breitenbach, Friedemann Rous, Josef Ottenreuther | 1990-05-22 |
| 4810835 | Flame-resistant electric line | Siegfried Richter | 1989-03-07 |