Assignee
HARTOG JOS DEN
NL·2 granted patents·2 citations·filing 2005–2011
Technology mixH04M2
Top patents by PatentIndex Score
2 records- 0163US8077703B2Induced answering method and system for circuit switching-based telephonyHARTOG JOS DEN·Filed 2005·Granted Dec 13, 2011·2 cites·16 claims
- 0245US9094502B2Induced answering method and system for circuit switching-based telephonyHARTOG JOS DEN·Filed 2011·Granted Jul 28, 2015·0 cites·12 claims
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