Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5900680 | Circuit arrangement for supplying an operating voltage from an operating voltage source to a plurality of connectable and detachable circuit units | — | 1999-05-04 |
| 4837810 | Telephone switch center with control of individual devices | — | 1989-06-06 |
| 4786899 | Circuit arrangement for PCM telecommunication facilities | Wolfgang Berner, Rolf Grabenhorst, Peter Kueffer, Josef Birlmeier | 1988-11-22 |
| 4212060 | Method and apparatus for controlling the sequence of instructions in stored-program computers | — | 1980-07-08 |