Patent 7370713 was granted and assigned to DEKA (company) on May, 2008 by the United States Patent and Trademark Office.
A class of transportation vehicles for carrying an individual over ground having a surface that may be irregular. This embodiment has a motorized drive, mounted to the ground-contacting module that causes operation of the vehicle in an operating position that is unstable with respect to tipping when the motorized drive arrangement is not powered.