Patents by Inventor Silvio Micall

Silvio Micall 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).

  • Witness-based certificate revocation system
    Patent number: 5717758
    Abstract: An intermediary provides certificate information by receiving from a first other entity authenticated certificate information, processing at least a portion of the authenticated certificate information to obtain deduced information, if the deduced information is consistent with the authenticated certificate information, having a witness construct authenticated deduced information by authenticating at least one of: the deduced information, the deduced information together with date information, and the deduced information together with additional information, and by providing the authenticated deduced information. The date information may be at least one of: the current date and date information of the authenticated certificate information. The witness may do the processing. The witness may be the intermediary.
    Type: Grant
    Filed: December 9, 1996
    Date of Patent: February 10, 1998
    Inventor: Silvio Micall