Patents by Inventor Thomas J. Marston

Thomas J. Marston 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).

  • Therapeutic and recreational variable stepping apparatus and method
    Patent number: 6402664
    Abstract: Six steps of varying height are provided adjacent to one another in an integrated unit resting upon and surrounded by a floor surface. The height of each step in relation to its adjacent steps, and in relation to the floor, is determined such that by stepping between any chosen pair of adjacent steps, or by stepping between the floor and any given single step, step height differentials of approximately 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, and optionally 26 inches are all made available to the user.
    Type: Grant
    Filed: October 28, 1999
    Date of Patent: June 11, 2002
    Inventor: Thomas J. Marston