Patents by Inventor John D. C. de LaHarpe

John D. C. de LaHarpe 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).

  • Slotted waveguide antenna stiffened structure
    Patent number: 8149177
    Abstract: A slotted waveguide antenna stiffened structure for an aircraft having an aircraft skin. The slotted waveguide antenna stiffening structure including a structural stiffening element reinforcing the aircraft skin; the structural element connected to a radio frequency feed source, the source providing energy with electromagnetic bandwidth to a slotted waveguide antenna having a plurality of slots. The antenna conformal to the aircraft skin and the structural stiffening element, the structural stiffening elements functioning as waveguides for the electromagnetic bandwidth. The slots may include a slot sealant enclosing the plurality of slots.
    Type: Grant
    Filed: May 5, 2009
    Date of Patent: April 3, 2012
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventors: Paul J. Callus, John D. C. de LaHarpe, James M. Tuss, William G. Baron, David G. Kuhl