Patents by Inventor Leo Boyd

Leo Boyd 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).

  • Tone generator for use with hearing aids
    Patent number: 5266919
    Abstract: A programmable tone generator provides a signal that can be used by a hearing aid wearer to set the gain of the hearing aid such that the hearing threshold is at a prescribed corrected level.
    Type: Grant
    Filed: April 1, 1991
    Date of Patent: November 30, 1993
    Inventors: Perry R. Cook, Leo Boyd