| Declaration submission | Manual patent holder change | modification on not yet submitted declaration (reference:) | modification on not yet submitted declaration (reference:) |
| CN20031053061 | CN20031053061 | CN20031053061 | CN20031053061 |
| 13/12/1995 | 13/12/1995 | 13/12/1995 | 13/12/1995 |
| CN1487679 A 07/04/2004 | CN1487679 A 07/04/2004 | CN1487679 A 07/04/2004 | X |
| Transmission system and operating method thereof | Transmission system and operating method thereof | Transmission system and operating method thereof | Transmission system and operating method thereof |
| | | | |
| | | | |
| CHINA | CHINA | CHINA | CHINA |
| | | | |
| US19940358949 | US19940358949 | US19940358949 | US19940358949 |
| NORTHERN TELECOM LTD [CA] | Research in Motion Limited | Research in Motion Limited | Research in Motion Limited |
| | US19940358949;US19980096192 | X | |
| | | | |