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Patent applications and USPTO patent grants for Iffland; Frederick C..The latest application filed is for "voice over network (von)/voice over internet protocol (voip) architect having hotline and optional tie line".
Patent | Date |
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Voice over network (VoN)/voice over internet protocol (VoIP) architect having hotline and optional tie line Grant 9,118,510 - Kafka , et al. August 25, 2 | 2015-08-25 |
VOICE OVER NETWORK (VoN)/VOICE OVER INTERNET PROTOCOL (VoIP) ARCHITECT HAVING HOTLINE AND OPTIONAL TIE LINE App 20130272298 - Kafka; Henry J. ;   et al. | 2013-10-17 |
Voice over network (VoN)/voice over internet protocol (VoIP) architect having hotline and optional tie line Grant 8,477,758 - Kafka , et al. July 2, 2 | 2013-07-02 |
Calling party ringtone selection in telephone system Grant 8,139,745 - Alston , et al. March 20, 2 | 2012-03-20 |
Voice over Network (VoN)/Voice Over Internet Protocol (VoIP) architect having hotline and optional tie line App 20050190750 - Kafka, Henry J. ;   et al. | 2005-09-01 |
Calling party ringtone selection in telephone system App 20050180554 - Alston, Douglas B. ;   et al. | 2005-08-18 |
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