Patents by Inventor Patrick W. Dowd

Patrick W. Dowd 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: 9467299
    Abstract: A device and method of controlled, multilevel chain of trust/revision by certifying of each user, device, action, and circumstance in the creation, modification, and transmission of computer information, including a revision history of any modification, and identification of any uncertified computer object used.
    Type: Grant
    Filed: March 19, 2014
    Date of Patent: October 11, 2016
    Inventors: Keith B. Alexander, Patrick W. Dowd
  • Patent number: 9467298
    Abstract: A device and method of multilevel chain of trust/revision by certifying each user, device, action, and circumstance in the creation, modification, and transmission of computer information, including a revision history of any modification.
    Type: Grant
    Filed: March 19, 2014
    Date of Patent: October 11, 2016
    Inventors: Keith B. Alexander, Patrick W. Dowd
  • Patent number: 8898784
    Abstract: Electronic network security by establishing a network topology, including multiple devices, where the network includes a command and control layer and a transport layer, where the command and control layer is changeable by the transport layer and vice versa. All phases of an intrusion attempt are monitored to anticipate an intrusion, prevent an intrusion, and remedy a successful intrusion. An assessment of the threat is made in multiple dimensions. The topology of the network may be changed in accordance with the threat assessment. In addition, computer traffic in the network and from the intrusion source may be modified or stopped to guard against an intrusion, prevent an intrusion, and remedy a successful intrusion. The command and control layer is changeable by the transport layer and vice versa.
    Type: Grant
    Filed: May 29, 2013
    Date of Patent: November 25, 2014
    Assignee: The United States of America, as represented by the Director, National Security Agency
    Inventors: Keith B. Alexander, Patrick W. Dowd, Robert L. Grossman
  • Patent number: 7073196
    Abstract: The present invention is a device for and method of accessing a network by initializing a database, an approved list, and a disapproved list; receiving an connectionless network packet; computing a flow tag based on the connectionless network packet; discarding the connectionless network packet and returning to the second step if the flow tag is on the disapproved list; allowing access to the network and returning to the second step if the flow tag is on the approved list; comparing the flow tag to the database if the flow tag is not on the approved list or the disapproved list; discarding the connectionless network packet, adding the flow tag to the disapproved list, and returning to the second step if the database rejects the flow tag; and allowing access to the network, adding the flow tag to the approved list, and returning to the second step if the database accepts the flow tag.
    Type: Grant
    Filed: April 7, 1999
    Date of Patent: July 4, 2006
    Assignee: The United States of America as represented by the National Security Agency
    Inventors: Patrick W. Dowd, John T. McHenry
  • Patent number: 6615358
    Abstract: The present invention is a device for and method of accessing an information network by initializing a database, an ATM approved list, an IP approved list, and an IP disapproved list; receiving a datagram; discarding the datagram if it is not on the ATM approved list; determining the datagram's type; allowing access to the network and comparing the connection request, if any, to the database if the datagram is ATM signaling; discarding the datagram if the datagram is ATM signaling and the database denies the request; adding the request to the ATM approved list if the datagram is ATM signaling and the database allows the request; allowing access to the network if the datagram is ATM data that excludes IP data and the request is on the ATM approved list; computing a flow tag if the datagram is ATM data that includes IP data; discarding the datagram if the flow tag is on the IP disapproved list; allowing access to the network if the flow tag is on the IP approved list; comparing the flow tag to the database
    Type: Grant
    Filed: April 7, 1999
    Date of Patent: September 2, 2003
    Inventors: Patrick W. Dowd, John T. McHenry