Assignee
MARSHALL ROGER S
US·2 granted patents·5 citations·filing 2007–2011
Top patents by PatentIndex Score
2 records- 0170US9160572B2Automated location determination to support VoIP E911 using self-surveying techniques for ad hoc wireless networkMARSHALL ROGER S·Filed 2007·Granted Oct 13, 2015·3 cites·7 claims
- 0267US9130963B2Ancillary data support in session initiation protocol (SIP) messagingMARSHALL ROGER S·Filed 2011·Granted Sep 8, 2015·2 cites·18 claims
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