Patents by Inventor James DeWitt Isaak

James DeWitt Isaak 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).

  • Method for certifying the authenticity of digital objects by an authentication authority and for certifying their compliance by a testing authority
    Patent number: 6622247
    Abstract: A computerized method is provided for certifying a digital object. The digital object is uniquely identified with an identification. The identification is registered with a certification authority using a first public/private key exchange to receive a certificate of the digital object. Authenticity of the object is addressed by means of certification of the supplier's identity, in conjunction with integrity validation of the object. The digital object is tested to receive a compliance label using a second public/private key information exchange. The digital object is then distributed along with the certificate, and the label using a third public/private key information exchange. Ongoing confidence in object compliance is sustained by re-affirmation and/or notification mechanisms.
    Type: Grant
    Filed: December 19, 1997
    Date of Patent: September 16, 2003
    Assignee: Hewlett-Packard Development Company, LP
    Inventor: James DeWitt Isaak