Patents by Inventor Allen E. Tupker

Allen E. Tupker 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).

  • Multibay coplanar direction finding antenna
    Patent number: 5521608
    Abstract: A multiband direction finding antenna comprised of numerous antenna elements, of coplanar location. The antenna elements associated with lower band frequencies are provided with chokes, so that unchoked sections do not exceed one-quarter wavelength of the high-band, highest frequency.
    Type: Grant
    Filed: February 24, 1994
    Date of Patent: May 28, 1996
    Assignee: Rockwell International
    Inventors: Robert L. Brandt, Allen E. Tupker