Patents by Inventor David K. Liefer

David K. Liefer 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).

  • Data sharing system for aircraft training
    Patent number: 9799229
    Abstract: A method and apparatus for managing data in a platform. A first permission level is identified for first data in the data generated by a source in the platform. A second permission level is identified for an intended recipient of the first data. The first data is modified to form second data in the data in which the second data has the second permission level. The second data is distributed to the intended recipient.
    Type: Grant
    Filed: December 13, 2012
    Date of Patent: October 24, 2017
    Assignee: THE BOEING COMPANY
    Inventors: John Wokurka, Kenn R. Luecke, David K. Liefer
  • Apparatus, method, and system for hardware-based filtering in a cross-domain infrastructure
    Patent number: 9596212
    Abstract: An apparatus for hardware-based filtering in a multi-level secure cross-domain infrastructure includes a programmable logic device that includes a filter engine in communication with a first security module. An interface module of the filter engine is configured to receive a message from the first security module. The received message being sent to a second security module, which has a different security classification than the first security module. A filter module of the filter engine is configured to filter the message data according to a message rule, which defines a data compliance requirement associated with the security classification of the second security module. A routing module is configured to provide the message to the second security module in response to the message data complying with the message rule.
    Type: Grant
    Filed: November 11, 2013
    Date of Patent: March 14, 2017
    Assignee: The Boeing Company
    Inventors: John M. Thilenius, David K. Liefer
  • APPARATUS, METHOD, AND SYSTEM FOR HARDWARE-BASED FILTERING IN A CROSS-DOMAIN INFRASTRUCTURE
    Publication number: 20150135254
    Abstract: An apparatus for hardware-based filtering in a multi-level secure cross-domain infrastructure includes a programmable logic device that includes a filter engine in communication with a first security module. An interface module of the filter engine is configured to receive a message from the first security module. The received message being sent to a second security module, which has a different security classification than the first security module. A filter module of the filter engine is configured to filter the message data according to a message rule, which defines a data compliance requirement associated with the security classification of the second security module. A routing module is configured to provide the message to the second security module in response to the message data complying with the message rule.
    Type: Application
    Filed: November 11, 2013
    Publication date: May 14, 2015
    Applicant: The Boeing Company
    Inventors: John M. Thilenius, David K. Liefer