Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8195207 | Method for the transmission of data to at least one listening user of an on-going group call immediately after switching speakers | Hans-Jurgen Marx, Peter Schmitt | 2012-06-05 |
| 7415099 | Method and devices for monitoring subscribers of a telecommunications network during participation in group call connections | Bernhard Spalt | 2008-08-19 |