Patents by Inventor Jack M. Bien

Jack M. Bien 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).

  • Power operated back rest
    Patent number: 3931653
    Abstract: A body rest apparatus having a base to be placed on a support surface and having a back rest actuable to different inclined positions relative to the base by a motor driven screw and nut mechanism located within the dihedral angle formed between the base and back rest elements.
    Type: Grant
    Filed: September 30, 1974
    Date of Patent: January 13, 1976
    Inventor: Jack M. Bien