Patents by Inventor Stewart Settles

Stewart Settles 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).

  • Mobile security system
    Patent number: 5225713
    Abstract: An apparatus is provided for preventing unauthorized operation of an engine of a motorized vehicle having a cellular telephone whereby certain DTMF tones must be generated on the cellular telephone prior to the engine of a motor vehicle being operational.
    Type: Grant
    Filed: June 25, 1991
    Date of Patent: July 6, 1993
    Inventors: Warren J. Henneberry, Stewart Settles