Patents by Inventor Freda Jefferson

Freda Jefferson 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).

  • Vehicle glass clearing system
    Patent number: 6100500
    Abstract: A vehicle glass clearing system includes an installed portion and an auxiliary heating element system including an auxiliary heating element having a control and drive circuit having mechanisms for detecting the moisture level and the temperature and that provides a higher drive current to the heating element when threshold temperature and moisture levels are detected.
    Type: Grant
    Filed: May 19, 1998
    Date of Patent: August 8, 2000
    Inventors: Bobby J. Jefferson, Jr., Freda Jefferson