Issued Patents All Time
Showing 26–35 of 35 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7756074 | Method for the transmission of at least one group message, corresponding network control unit and radio communication device | Mark Beckmann, Michael Eckert | 2010-07-13 |
| 7747270 | Method for allocating a communication right, communication conference session server and communication conference session server arrangement | Andreas Schmidt, Holger Schmidt, Achim Luft | 2010-06-29 |
| 7729349 | Method of transmitting data in a communication system | Mark Beckmann, Thomas Gottschalk, Andreas Otte, Michael Eckert, Martin Hans | 2010-06-01 |
| 7643628 | Communication system having conference server | Martin Hans | 2010-01-05 |
| 7639182 | Distance measurement in a radio communication device | Andreas Schmidt, Achim Luft, Michael Benkert | 2009-12-29 |
| 7567654 | Method for setting up a communication link | Achim Luft, Markus Trauberg, Martin Wulsten | 2009-07-28 |
| 7561675 | Method for setting up a communication link with multimedia call signaling | Achim Luft, Markus Trauberg, Martin Wulsten | 2009-07-14 |
| 7555304 | Method and communications arrangement for setting up a push-to-talk communications link and push-to-talk client unit | Josef Laumen, Andreas Schmidt | 2009-06-30 |
| 7522584 | Method for changing between a packet-oriented PTT session and a circuit-oriented telephone connection between at least two radio communication appliances, associated radio communication appliance, network component and radio communication system | Olaf Kautz, Josef Laumen | 2009-04-21 |
| 7499414 | Method for administration of a multicast service | Mark Beckmann, Michael Eckert, Christina Gessner, Thomas Gottschalk, Martin Hans +3 more | 2009-03-03 |