Assignee
DONOVAN STEVEN R
US·5 granted patents·16 citations·filing 2006–2009
Top patents by PatentIndex Score
5 records- 0183US8509393B2Internet protocol telephony voice/video message deposit and retrievalDONOVAN STEVEN R·Filed 2009·Granted Aug 13, 2013·7 cites·24 claims
- 0279US8731158B2Methods for providing prepaid telephony service via an internet protocol network systemDONOVAN STEVEN R·Filed 2008·Granted May 20, 2014·5 cites·7 claims
- 0369US8923276B2Internet protocol telephony voice/video message deposit and retrievalDONOVAN STEVEN R·Filed 2009·Granted Dec 30, 2014·2 cites·19 claims
- 0461US8116769B2Anchoring a communication session in a multiple mode systemDONOVAN STEVEN R·Filed 2006·Granted Feb 14, 2012·2 cites·12 claims
- 0555US9577933B2Method and system of providing differentiated servicesDONOVAN STEVEN R·Filed 2009·Granted Feb 21, 2017·0 cites·17 claims
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