Patents by Inventor Robb Roell

Robb Roell 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).

  • Illuminated pushbutton switch assembly
    Publication number: 20060209484
    Abstract: A pushbutton switch assembly to which an AC supply current or a DC supply current can be provided. The pushbutton switch assembly can include a pushbutton and a light-emitting diode that illuminates the pushbutton. The pushbutton switch assembly can also include a rectifier circuit that converts the AC supply current to a DC drive current and provides the DC drive current to the light-emitting diode. In some embodiments, the rectifier circuit can provide a DC drive current to the light-emitting diode regardless of a polarity of the DC supply current.
    Type: Application
    Filed: March 16, 2005
    Publication date: September 21, 2006
    Inventors: Robb Roell, John Sedgwick