Patents by Inventor Joanne Levin

Joanne Levin 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).

  • Hearing aid device
    Patent number: 6144750
    Abstract: Disclosed are hearing aid devices in which a face plate of said devices has variable shades of coloring to mimic the natural shading of the ear, and to make the hearing aid less visible to an observer when worn in the ear. Also disclosed are hearing aid devices in which visible battery compartment covers are shaped to mimic natural curves of the ear and to be less visible to an observer.
    Type: Grant
    Filed: January 16, 1998
    Date of Patent: November 7, 2000
    Inventor: Joanne Levin