Patents by Inventor Mehdi Ghahariiran

Mehdi Ghahariiran 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).

  • Child monitoring device
    Patent number: 4899135
    Abstract: An ultra-sonic or radio-frequency monitoring system comprising a transmitting unit carried by the child and a receiving unit carried by the child's guardian that will alert the guardian when the child strays beyond a predescribed distance, is abducted or falls into water.
    Type: Grant
    Filed: December 5, 1988
    Date of Patent: February 6, 1990
    Inventor: Mehdi Ghahariiran