Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5111200 | Broadband space-division switching network with linkage in a printed circuit board having multi-layer micro-strip lines | Johann E. W. Kruger, Ulrich Killat | 1992-05-05 |
| 4891802 | Method of and circuit arrangement for controlling a switching network in a switching system | Johann E. W. Kruger, Ulrich Killat | 1990-01-02 |
| 4868812 | Shared lines equipment, especially for B- | Johann E. W. Kruger, Ulrich Killat | 1989-09-19 |
| 4755971 | Buffer memory for an input line of a digital interface | Ulrich Killat, Johann E. W. Kruger | 1988-07-05 |
| 4748615 | Digital TDM switching exchange wherein switching is effected by the read/write sequences of data stores | Johann E. W. Kruger | 1988-05-31 |