Assignee
CERTCO LLC
US14 patents
Top patents by PatentIndex Score
US6029150AFeb 22, 2000
Payment and transactions in electronic commerce system
CERTCO LLC1,382 citations99
US6009177ADec 28, 1999
Enhanced cryptographic system and method with key escrow feature
CERTCO LLC499 citations98
US5995625ANov 30, 1999
Electronic cryptographic packing
CERTCO LLC301 citations98
US5872849AFeb 16, 1999
Enhanced cryptographic system and method with key escrow feature
CERTCO LLC159 citations98
US5857022AJan 5, 1999
Enhanced cryptographic system and method with key escrow feature
CERTCO LLC138 citations98
US5850451ADec 15, 1998
Enhanced cryptographic system and method with key escrow feature
CERTCO LLC141 citations98
US5841865ANov 24, 1998
Enhanced cryptographic system and method with key escrow feature
CERTCO LLC237 citations98
US5799086AAug 25, 1998
Enhanced cryptographic system and method with key escrow feature
CERTCO LLC444 citations98
US5659616AAug 19, 1997
Method for securely using digital signatures in a commercial cryptographic system
CERTCO LLC758 citations98
US5867578AFeb 2, 1999
Adaptive multi-step digital signature system and method of operation thereof
CERTCO LLC295 citations97
US5903882AMay 11, 1999
Reliance server for electronic transaction system
CERTCO LLC828 citations96
USRE36918EOct 17, 2000
Fair cryptosystems and methods of use
CERTCO LLC30 citations93
US7904722B2Mar 8, 2011
Method for securely using digital signatures in a commercial cryptographic system
CERTCO LLC40 citations86
US8032743B2Oct 4, 2011
Reliance server for electronic transaction system
CERTCO LLC14 citations82