Patents by Inventor Thomas J. Marks

Thomas J. Marks 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).

  • Chair having adjustable back support
    Patent number: 5328245
    Abstract: A chair is provided with an adjustable back support which quickly and easily conforms to the contours of the user's back. The chair has a seat and an upwardly extending support bar. A number of segments are received on the support bar to define a support surface for supporting the back of the user. The segments are movable to allow the support surface to conform to the back of the seated person. A locking mechanism allows the person to lock the segments in the desired position.
    Type: Grant
    Filed: October 30, 1992
    Date of Patent: July 12, 1994
    Assignee: Thomas J. Marks
    Inventors: Thomas J. Marks, Daniel F. Rohrer