Patents by Inventor Douglas C. Yeager

Douglas C. Yeager has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Systems and methods for secure application-based participation in an interrogation by mobile device
    Patent number: 10032171
    Abstract: Methods are described for performing a timely authorization of digital credential data delivered from a mobile device that is without access to a local persistently stored permanent cryptographic key; through an interrogation with a point-of-sale that behaves according to the direction of a card specification; wherein the card specification expects the mobile device to create a cryptogram that is calculated, at least in part, using the permanent cryptographic key and, at least in part, from unpredictable data delivered from the point-of-sale to the mobile device during the interrogation.
    Type: Grant
    Filed: August 30, 2012
    Date of Patent: July 24, 2018
    Assignee: SimplyTapp, Inc.
    Inventor: Douglas C. Yeager