Patents by Inventor Ralph C. White

Ralph C. White 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).

  • Uncancelled turn signal indicator
    Patent number: 4907844
    Abstract: An uncancelled turn signal indicator senses both that the monitored vehicle has a speed in excess of a predetermined threshold, and that a turn signal indicator for the vehicle has been selected for more than a predetermined period of activation. Upon sensing coincidence of both conditions, audible and visual indicators are provided to the driver of the vehicle to alert the driver of this condition.
    Type: Grant
    Filed: March 27, 1989
    Date of Patent: March 13, 1990
    Inventor: Ralph C. White