Assignee
BEEPCARD INC
US·3 granted patents·873 citations·filing 2000–2008
Top patents by PatentIndex Score
3 records- 0196US6607136B1Physical presence digital authentication systemBEEPCARD INC·Filed 2000·Granted Aug 19, 2003·832 cites·3 claims
- 0294US7941480B2Computer communications using acoustic signalsBEEPCARD INC·Filed 2008·Granted May 10, 2011·31 cites·23 claims
- 0387US7480692B2Computer communications using acoustic signalsBEEPCARD INC·Filed 2006·Granted Jan 20, 2009·10 cites·41 claims
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