Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5043977 | Method and a circuit arrangement for setting the subscriber line dummy impedances of programmable hybrid circuits | Robert Lechner | 1991-08-27 |
| 4829517 | Circuit arrangement for injecting meter pulses for subscriber tariff counting | — | 1989-05-09 |