Assignee
DUFFY DENNIS
US·3 granted patents·1 citations·filing 2009–2009
Top patents by PatentIndex Score
3 records- 0158US8340085B2Method and apparatus for enabling customer premise public branch exchange service feature processingDUFFY DENNIS·Filed 2009·Granted Dec 25, 2012·1 cites·20 claims
- 0253US8625579B2Method and apparatus for enabling customer premise public branch exchange service feature processingDUFFY DENNIS·Filed 2009·Granted Jan 7, 2014·0 cites·18 claims
- 0349US8570884B2Method and apparatus for enabling customer premise public branch exchange service feature processingDUFFY DENNIS·Filed 2009·Granted Oct 29, 2013·0 cites·20 claims
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