Individual holder
BUTTERFIELD DANIEL J
US·2 granted patents·29 citations·filing 2009–2012
Individually held — no corporate assignee on record.
Technology mixH04M2
Top patents by PatentIndex Score
2 records- 0191US8484344B2Communicating messages to proximate devices on a contact list responsive to an unsuccessful callBUTTERFIELD DANIEL J·Filed 2012·Granted Jul 9, 2013·23 cites·19 claims
- 0277US8285839B2Urgent communications that overcome receiving device impedimentsBUTTERFIELD DANIEL J·Filed 2009·Granted Oct 9, 2012·6 cites·13 claims
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