Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5233607 | Communication system for forming virtual, annular networks in a time-division multiplex packet switching network | Karlhorst Barwig | 1993-08-03 |
| 4715026 | Circuit arrangement for a communications system for the transmission of message information from narrowband and broadband terminal equipment within a local network constructed as a loop | — | 1987-12-22 |