| Automatic patent import | Automatic patent import | Declaration submission | Manual patent holder change | modification on not yet submitted declaration (reference:) | modification on not yet submitted declaration (reference:) |
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| 20/02/2001 | 20/02/2001 | 20/02/2001 | 20/02/2001 | 20/02/2001 | 20/02/2001 |
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| System and method for controlling a wireless packet switched voice call | System and method for controlling a wireless packet switched voice call | System and method for controlling a wireless packet switched voice call | System and method for controlling a wireless packet switched voice call | System and method for controlling a wireless packet switched voice call | System and method for controlling a wireless packet switched voice call |
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| CHINA | CHINA | CHINA | CHINA | CHINA | CHINA |
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| US20000183940P | US20000183940P | US20000183940P | US20000183940P | US20000183940P | US20000183940P |
| NORTEL NETWORKS LTD [CA] | NORTEL NETWORKS LIMITED | NORTEL NETWORKS LIMITED | Research in Motion Limited | Research in Motion Limited | Research in Motion Limited |
| US20000183940P;US20010789435 | US20000183940P;US20010789435 | X | US20000183940P;US20010789435 | X | |
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