Issued Patents All Time
Showing 51–75 of 95 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9178696 | Key management for secure communication | Rolf Blom, Yi Cheng, John Mattsson, Mats Näslund, Karl Norrman | 2015-11-03 |
| 9173145 | Handling call transfer in a communication network | Ralf Keller | 2015-10-27 |
| 9144050 | Methods and apparatus for use in a communications network | Magnus Olsson, Göran Hall, Magnus Hallenstål, Ralf Keller | 2015-09-22 |
| 9106664 | Method and apparatuses for maintaining service continuity to a centralization and continuity application server | Ralf Keller, Jian Wang | 2015-08-11 |
| 9078172 | Session transfer in a communication network | Ralf Keller | 2015-07-07 |
| 9055546 | Handling a registration timer to provide service continuity in IMS | Ralf Keller | 2015-06-09 |
| 9026082 | Terminal identifiers in a communications network | Magnus Hallenstål | 2015-05-05 |
| 8996858 | Systems and methods for utilizing IMS data security mechanisms in a circuit switched network | Rolf Blom | 2015-03-31 |
| 8996673 | Emergency signalling in an IP multimedia subsystem network | Per O. Oberg | 2015-03-31 |
| 8964961 | Method of routing a session from a calling party in a serving communication network of the calling party to a called party | Ralf Keller, Gert Oster, Mats Stille | 2015-02-24 |
| 8923247 | Handover from circuit switched to packet switched | Ralf Keller, Magnus Hallenstål, Magnus Olsson | 2014-12-30 |
| 8908643 | Handover of priority calls from a circuit switched access network with single radio voice call continuity | Ralf Keller | 2014-12-09 |
| 8908597 | Methods and apparatus for supporting the implementation of IMS service continuity | Ivo Sedlacek, Jan Holm | 2014-12-09 |
| 8886183 | Attaching to an access network | Magnus Hallenstål | 2014-11-11 |
| 8848666 | Handover of emergency calls from a circuit switched to a packet switched access network | Ralf Keller | 2014-09-30 |
| 8837737 | Key management in a communication network | Rolf Blom, Mats Näslund, Karl Norrman | 2014-09-16 |
| 8832821 | Method and apparatuses for end-to-edge media protection in an IMS system | Luis Barriga, Rolf Blom, Yi Cheng, Mats Näslund, Karl Norrman | 2014-09-09 |
| 8825875 | Session establishment in a communication network | Alf Heidermark, Christer Holmberg, Hubert Przybysz | 2014-09-02 |
| 8811229 | Handling ICS enhanced and non enhanced MSC in a pool | Jian Wang, Ralf Keller, Daniel Mateos Perez, Santiago Muñoz Muñoz | 2014-08-19 |
| 8811288 | Method for enabling delivery of a message between an IMS domain and a CS domain | Ralf Keller | 2014-08-19 |
| 8787867 | Emergency call handling | Peter Bleckert, Philip Hodges, Hans Krister Mikael Sällberg | 2014-07-22 |
| 8745715 | Password-based authentication system and method in group network | Mats Naeslund | 2014-06-03 |
| 8745374 | Sending protected data in a communication network | Rolf Blom, John Mattsson | 2014-06-03 |
| 8700692 | Group access to IP multimedia subsystem service | Hans-Erik Van Elburg, Patrick Timmers | 2014-04-15 |
| 8671201 | Correlation of sessions in case of session transfer in IMS domain | Ralf Keller, Alf Heidermark | 2014-03-11 |