Patents by Inventor Samuel Wyrick

Samuel Wyrick 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).

  • Stair climbing cart
    Publication number: 20070075509
    Abstract: The present invention is directed to a cart for transporting cargo that is capable of climbing stairs. In the preferred embodiment, the cart has two three-wheel assemblies and a frame. The three-wheel assemblies are designed to rotate when contact is made with stairs, thereby allowing the cart to climb the stairs.
    Type: Application
    Filed: October 5, 2005
    Publication date: April 5, 2007
    Inventor: Samuel Wyrick