Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5822433 | Method, system and subscriber facility for manipulation-proof separation of message streams | Thomas-Rolf Banniza | 1998-10-13 |
| 5535032 | Optical parallel-serial converter and optical serial-parallel converter | — | 1996-07-09 |
| 5369514 | Multistage switching facility for optical signals | Gert Eilenberger | 1994-11-29 |
| 5303077 | Optical switch and switching module therefor | Gert Eilenberger | 1994-04-12 |
| 5175777 | Optical Switching matrix including plural wavelength converting devices | — | 1992-12-29 |
| 4654866 | Combined narrow band and broad band telephone communication system | Xuan Ho Tan | 1987-03-31 |