Patents by Inventor Pierre Couennault

Pierre Couennault 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).

  • Crossed field re-entrant beam amplifier
    Patent number: 4350928
    Abstract: A material which absorbs microwaves and constituted by carbon-filled ceramic material is placed in the vacuum enclosure level with the supports of the cylindrical cathode.
    Type: Grant
    Filed: April 9, 1980
    Date of Patent: September 21, 1982
    Assignee: Thomson-CSF
    Inventors: Pierre Couennault, Lucien Teyssier