Patents by Inventor Graham Langdon

Graham Langdon 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).

  • METHODS FOR AUTHENTICATING A PURCHASE USING LOCATION BASED MOBILE SERVICE
    Publication number: 20120010930
    Abstract: In various embodiments, a rewards program may provide users with rewards for transacting with a merchant. In various embodiments, the transactions are validated before a user is allowed to receive a reward. In various embodiments, a mobile device is used to validate a transaction. In various embodiments, a mobile device may store an indication of a user's progress towards earning a reward.
    Type: Application
    Filed: July 8, 2011
    Publication date: January 12, 2012
    Inventors: Graham Langdon, Jitendra Gupta