Patents by Inventor Jozef J. M. Warringa

Jozef J. M. Warringa 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).

  • Band-pass filter constructed from concentrically arranged coaxial resonator cavities
    Patent number: 4132965
    Abstract: A device comprising a band-pass filter comprising two concentrically arranged coaxial resonator cavities and a coupling capacitor disposed between these resonator cavities, wherein the bandwidth of the filter can be changed by means of a replaceable dielectric body disposed between the plates since the device is separable in two individually associated parts.
    Type: Grant
    Filed: May 4, 1977
    Date of Patent: January 2, 1979
    Assignee: U.S. Philips Corporation
    Inventors: Jozef J. M. Warringa, Harry Piepers