Patents by Inventor Thomas R. Markham

Thomas R. Markham 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).

  • Patent number: 5502766
    Abstract: A data communication system providing for the secure transfer and sharing of data via a local area network and/or a wide area network. The system includes a secure processing unit which communicates with a personal keying device and a crypto media controller attached to a user's Workstation. The communication between these processing elements generates a variety of data elements including keys, identifiers, and attributes. The data elements are used to identify and authenticate the user, assign user security access rights and privileges, and assign media and device attributes to a data access device according to a predefined security policy. The data elements are manipulated, combined, protected, and distributed through the network to the appropriate data access devices, which prevents the user from obtaining unauthorized data.
    Type: Grant
    Filed: October 26, 1993
    Date of Patent: March 26, 1996
    Assignee: Secure Computing Corporation
    Inventors: William E. Boebert, Thomas R. Markham, Robert A. Olmsted
  • Patent number: 5276735
    Abstract: A data communication system providing for the secure transfer and sharing of data via a local area network and/or a wide area network. The system includes a secure processing unit which communicates with a personal keying device and a crypto media controller attached to a user's Workstation. The communication between these processing elements generates a variety of data elements including keys, identifiers, and attributes. The data elements are used to identify and authenticate the user, assign user security access rights and privileges, and assign media and device attributes to a data access device according to a predefined security policy. The data elements are manipulated, combined, protected, and distributed through the network to the appropriate data access devices, which prevents the user from obtaining unauthorized data.
    Type: Grant
    Filed: April 17, 1992
    Date of Patent: January 4, 1994
    Assignee: Secure Computing Corporation
    Inventors: William E. Boebert, Thomas R. Markham, Robert A. Olmsted