Patents by Inventor Willie J. Griffin

Willie J. Griffin 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).

  • Emergency vehicle alert system
    Patent number: 6252521
    Abstract: An emergency vehicle alert system that includes transmitter units mountable within emergency vehicles and receiver units mountable within civilian vehicles. The transmitter units and the receiver units via a mechanism within each receiver unit that provides each civilian driver with an indicator of the distance between his/her civilian vehicle and the emergency vehicle.
    Type: Grant
    Filed: November 8, 2000
    Date of Patent: June 26, 2001
    Inventors: Willie J. Griffin, Anita F. Griffin