Assignee
BRIDGEPORT NETWORKS INC
US3 patents
Top patents by PatentIndex Score
US7502615B2Mar 10, 2009
Handoff for cellular and internet protocol telephony
BRIDGEPORT NETWORKS INC244 citations95
US7809381B2Oct 5, 2010
Presence detection for cellular and internet protocol telephony
BRIDGEPORT NETWORKS INC50 citations90
US7804821B2Sep 28, 2010
Circuit switched cellular network to internet calling with internet antennas
BRIDGEPORT NETWORKS INC8 citations78