Patents by Inventor Denis J. McGreivy

Denis J. McGreivy 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).

  • Light-insensitive matrix addressed liquid crystal display system
    Patent number: 4103297
    Abstract: A liquid crystal display addressable by a backplate semiconductor MOSFET switching matrix is made light insensitive by ion implanting the backplate around the MOSFETs to prevent the formation of photon generated inversion layers and by extending the reflective back electrodes over the MOSFETs to prevent incident light from striking those areas of the backplate which are not protected by ion implantation.
    Type: Grant
    Filed: December 20, 1976
    Date of Patent: July 25, 1978
    Assignee: Hughes Aircraft Company
    Inventors: Denis J. McGreivy, Henry T. Peterson, Alex M. Leupp
  • Integrated injection logic structure fabricated by outdiffusion and epitaxial deposition
    Patent number: 4101349
    Abstract: Merged transistor logic integrated circuit wherein the vertical transistor is formed by auto-doping an epitaxial silicon layer for an improved transistor doping profile. Further device improvements are achieved by the incorporation of Schottky diodes into the circuit.
    Type: Grant
    Filed: October 29, 1976
    Date of Patent: July 18, 1978
    Assignee: Hughes Aircraft Company
    Inventors: Bruce B. Roesner, Denis J. McGreivy