Patents by Inventor Oskar Doehler

Oskar Doehler 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).

  • Crossed-field amplifier
    Patent number: 4021697
    Abstract: A crossed-field amplifier with a beam modulating grid for the electron gun has an auxiliary electrode which modifies the electrostatic field and thus the electron beam adjacent the entrance of the amplifier interaction space. Efficiency is improved and incidence of electrons striking the delay line is reduced.
    Type: Grant
    Filed: December 10, 1975
    Date of Patent: May 3, 1977
    Assignee: Warnecke Electron Tubes, Inc.
    Inventors: Oskar Doehler, Gunter Dohler, Walter Friz