Patents by Inventor Martin D. Anderson

Martin D. Anderson 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).

  • Back builder
    Patent number: 5496247
    Abstract: An exercise bench for strengthening the muscles of the lower back, having a seat mounted to an inclined beam and a knee brace mounted to the beam at a position spaced downwardly from the seat, and a first restraining belt affixed proximate the seat, and a second restraining belt affixed proximate the knee brace.
    Type: Grant
    Filed: September 22, 1994
    Date of Patent: March 5, 1996
    Inventor: Martin D. Anderson
  • Exercise device
    Patent number: D398669
    Type: Grant
    Filed: May 7, 1997
    Date of Patent: September 22, 1998
    Assignee: Martin D. Anderson
    Inventors: Martin D. Anderson, Thomas A. Walter