Assignee
U S SPRINT COMMUNICATIONS COMP
US·2 granted patents·309 citations·filing 1989–1991
Top patents by PatentIndex Score
2 records- 0193US5274695ASystem for verifying the identity of a caller in a telecommunications networkU S SPRINT COMMUNICATIONS COMP·Filed 1991·Granted Dec 28, 1993·249 cites·14 claims
- 0277US4972464ASystem for placement of a long distance telephone carrier point-of-presence and call routingU S SPRINT COMMUNICATIONS COMP·Filed 1989·Granted Nov 20, 1990·60 cites·17 claims
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