Patents Assigned to CDCK Corporation
  • Payment instrument authorization technique
    Patent number: 6931382
    Abstract: A method is provided for protecting a payment instrument in non-face-to-face transactions. The payment instrument is issued by an issuing entity and associated with an authorized instrument holder. The authorized instrument holder is subject to authentication by a trusted third party with whom the payment instrument holder has previously registered.
    Type: Grant
    Filed: February 23, 2001
    Date of Patent: August 16, 2005
    Assignee: CDCK Corporation
    Inventors: Dominic P. Laage, Maria T. Laage