| Declaration submission | Manual patent holder change | Declaration submission |
| US20000538716 | US20000538716 | US20000538716 |
| 29/03/2000 | 29/03/2000 | 29/03/2000 |
| US6363251 B1 26/03/2002 | US6363251 B1 26/03/2002 | US6363251 B1 26/03/2002 |
| Network directed system selection for cellular and PCS enhanced roaming | Network directed system selection for cellular and PCS enhanced roaming | Network directed system selection for cellular and PCS enhanced roaming |
| | | |
| | | |
| UNITED STATES | UNITED STATES | UNITED STATES |
| | | |
| US19960695352;US19990461528;US20000538716 | US19960695352;US19990461528;US20000538716 | US19960695352;US19990461528;US20000538716 |
| NORTEL NETWORKS LTD [CA] | Microsoft Corp. | Microsoft Corp. |
| | US19960695352;US19990461528;US20000538716 | X |
| | | |