Patents by Inventor Norman Carte

Norman Carte 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 digitally timestamping documents
    Publication number: 20040236950
    Abstract: A method for timestamping a document includes making an entry into the document using a desired application, initiating a timestamping function from within the application, forming a hash of the entry, transmitting the hash to a timestamp authority, receiving a timestamp certificate from the timestamp authority, displaying information representative of the timestamp certificate in the document, and making another entry into the document.
    Type: Application
    Filed: May 18, 2004
    Publication date: November 25, 2004
    Inventor: Norman Carte