Patents by Inventor Matt Calabrese

Matt Calabrese 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).

  • Variable/switchable coupler
    Patent number: 5218327
    Abstract: A waveguide coupler wherein the coupling of power from one waveguide arm to an adjacent waveguide arm through an aperture in a common wall may be switched on and off at very high speed or controlled from zero to a maximum level by appropriately controlling how bias potential is applied to a reflective/absorptive element disposed in the aperture in the common wall.
    Type: Grant
    Filed: March 27, 1991
    Date of Patent: June 8, 1993
    Assignee: Hughes Aircraft Company
    Inventor: Matt Calabrese