Patents by Inventor Donald R. Frank

Donald R. Frank 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).

  • Patent number: 7458638
    Abstract: A chair has an essentially horizontal seat. An adjustable positioning assembly between a horizontal upper brace supporting the chair and a lower brace allows for varying the height between the chair and a recipient surface.
    Type: Grant
    Filed: November 6, 2007
    Date of Patent: December 2, 2008
    Inventor: Donald R. Frank
  • Patent number: 7070243
    Abstract: A frame has a pair of laterally spaced tubular supports in a generally inverted U-shaped configuration. A seat panel, in a generally horizontal plane, is secured between the supports. A back panel is supported by the seat panel. A pair of side panels includes one panel coupled to each tubular support. Each panel has an interior wall and an exterior wall. A periphery is provided between the walls. Each exterior wall has a continuous recess congruent with its periphery. The interior wall of each side panel has a discontinuous recess. An inverted U-shaped component extends above the seat panel and a horizontal component is below the seat panel.
    Type: Grant
    Filed: February 20, 2004
    Date of Patent: July 4, 2006
    Inventor: Donald R. Frank