Patents by Inventor LeGrant Jackson

LeGrant Jackson 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 detection device
    Patent number: 5235329
    Abstract: A combination to detect the proximity of an emergency vehicle including a transmitter in the emergency vehicle and a receiver in another vehicle, the receiver actuating an alarm such as a blinking light upon the reception of a transmission from an emergency vehicle.
    Type: Grant
    Filed: October 1, 1991
    Date of Patent: August 10, 1993
    Assignee: E A S Emergency Alert Systems, Inc.
    Inventor: LeGrant Jackson