Patents by Inventor Carl Duda

Carl Duda 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).

  • System and methods for digital file management and authentication
    Publication number: 20080109651
    Abstract: A system and method for authenticating a file in a data processing system is provided. The data processing system includes a digital file management (DFM) server, an electronic postmark (EPM) server, a sender, and at least one intended recipient. A file is received from a sender through a computing device, and an EPM is acquired from the EPM server. The EPM is embedded in the file, and then the file with the EPM is provided to the intended recipient.
    Type: Application
    Filed: November 2, 2006
    Publication date: May 8, 2008
    Inventors: Carl Duda, Wayne Kuan