Patents by Inventor Richard Alexander Mullins

Richard Alexander Mullins 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).

  • Stacked patch antenna with frequency band isolation
    Patent number: 5940037
    Abstract: A stacked patch antenna (1) is constructed with separately fed patch elements (2, 3) coupled at their respective null points with a coaxial feed (9), the coaxial feed (9) feeding a first patch element (2), a portion of the first patch element (2) connecting its null point with a natural feed point to be fed by the coaxial feed (9), and a second patch element (3) being referenced to ground by the coaxial feed (9).
    Type: Grant
    Filed: April 29, 1997
    Date of Patent: August 17, 1999
    Assignee: The Whitaker Corporation
    Inventors: Francis William Kellerman, William Henry Harned, Richard Alexander Mullins