Assignee
NAT TELEMANAGEMENT CORP
US·3 granted patents·973 citations·filing 1997–1998
Top patents by PatentIndex Score
3 records- 0198US6058300APrepay telecommunications systemNAT TELEMANAGEMENT CORP·Filed 1997·Granted May 2, 2000·422 cites·8 claims
- 0296US6035025ASystem and method for a prepaid bundled telecommunications accountNAT TELEMANAGEMENT CORP·Filed 1998·Granted Mar 7, 2000·363 cites·25 claims
- 0390US6029062APrepay telecommunications system with unregistered roaming call processingNAT TELEMANAGEMENT CORP·Filed 1997·Granted Feb 22, 2000·188 cites·19 claims
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