Patents by Inventor Mark A. Clement

Mark A. Clement 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).

  • Truck bed staircase device
    Patent number: 7658266
    Abstract: An embodiment of the present invention relates to a staircase device adapted to fit a bed of a truck, or other similar vehicle. The staircase provides a mechanism for facilitating the loading and unloading of items onto and off a bed of a truck. An embodiment of the present invention is directed to a vehicle staircase device comprising a first lower platform having a first length and a first width, the first lower platform having a hitch connector adapted to connect to a vehicle; a second platform having a second length and a second width, wherein the first lower platform and the second platform are substantially parallel; and a staircase structure connecting the first lower platform and the second platform.
    Type: Grant
    Filed: July 25, 2005
    Date of Patent: February 9, 2010
    Assignee: Norfolk Southern Corporation
    Inventor: Mark A. Clement