| Declaration submission | Manual patent holder change | Declaration submission |
| EP20100191388 | EP20100191388 | EP20100191388 |
| 16/11/2010 | 16/11/2010 | 16/11/2010 |
EP2323455 B1 12/03/2014 EP2323455 A1 18/05/2011 | EP2323455 B1 12/03/2014 EP2323455 A1 18/05/2011 | EP2323455 B1 12/03/2014 EP2323455 A1 18/05/2011 |
| Mobile voice over internet protocol operation | Mobile voice over internet protocol operation | Mobile voice over internet protocol operation |
| Opération de protocole Internet vocal mobile | Opération de protocole Internet vocal mobile | Opération de protocole Internet vocal mobile |
| Mobiler Voice-Over-Internet-Protocol-Betrieb | Mobiler Voice-Over-Internet-Protocol-Betrieb | Mobiler Voice-Over-Internet-Protocol-Betrieb |
| | | |
| European Patent Office | European Patent Office | European Patent Office |
| GB20090019996 | GB20090019996 | GB20090019996 |
| VODAFONE PLC [GB] | Vodafone IP Licensing Limited | Vodafone IP Licensing Limited |
| | GB20090019996 | X |
| | | |