Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5189544 | Bidirectional light waveguide telecommunication system | — | 1993-02-23 |
| 4695998 | Method and circuit arrangement for the compensation of echo signals | Gero Schollmeier | 1987-09-22 |