Inventor
ORFEI STEPHEN W
US3 patents
Patents
3 patentsUS7058611B2Jun 6, 2006
Method and system for conducting secure electronic commerce transactions with authorization request data loop-back
MASTERCARD INTERNATIONAL INC121 citations95
US7983987B2Jul 19, 2011
System and method for conducting secure payment transaction
MASTERCARD INTERNATIONAL INC53 citations91
US7801825B2Sep 21, 2010
Systems and methods for conducting secure payment transactions using a formatted data structure
MASTERCARD INTERNATIONAL INC23 citations88