Patents by Inventor Warren E. Wagner

Warren E. Wagner 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 controlled fader
    Patent number: 4523090
    Abstract: A light controlled fader for providing an analog voltage output of approximately linear proportion to the position of a slider-type control mechanism. The fader includes coacting first light emitting and receiving members and coacting second light emitting and receiving members. A control member is provided to allow the amount of light received by the first and second light receiving members to be varied in an inverse proportion to one another.
    Type: Grant
    Filed: June 20, 1983
    Date of Patent: June 11, 1985
    Inventor: Warren E. Wagner