Patents by Inventor Ronald J. Massey

Ronald J. Massey 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).

  • Tunable capacitor with RF-DC isolation
    Patent number: 5220194
    Abstract: A variable field effect capacitive device suitable for providing different amounts of capacitance in response to control signals of different magnitudes. The device includes a pair of plate electrodes and a pair of control electrodes. A semiconductor region is located between the control electrodes. The plates each make Schottky contact to the semiconductor region to form a depletion region therein which changes shape in response to changes in the magnitude of the control signals.
    Type: Grant
    Filed: May 4, 1991
    Date of Patent: June 15, 1993
    Assignee: Motorola, Inc.
    Inventors: John M. Golio, Ronald J. Massey, Monte G. Miller