Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE42069 | Telecommunications system with a switching facility and a data concentrator for providing access to the internet | Gunther Konig, Helmut Kulzer | 2011-01-25 |
| 6687258 | Telecommunications system with a switching facility and a data concentrator for providing access to the internet | Gunther Konig, Helmut Kulzer | 2004-02-03 |
| 6047050 | Apparatus and method for accessing subscriber data via telecommunications terminals | Helmut Neufeldt | 2000-04-04 |
| 5345502 | Establishment of connections between terminals for mobile subscribers of an interconnected network | — | 1994-09-06 |