Patents by Inventor Philip D. Greene

Philip D. Greene 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: 5112021
    Abstract: A bookholder device includes a main arm portion for hinged attachment to a wall (or alternatively, for free standing support on the floor). A clutch assembly portion is attached to the main arm, and releasably engages a rod member. A tray bracket is pivotally connected to the rod member, and further pivotally supports a book tray portion. This book tray supports the book in question by a combination of contact by a tray base, tray perimeter flanges, and a height-adjustable tray crossmember.
    Type: Grant
    Filed: November 6, 1990
    Date of Patent: May 12, 1992
    Inventor: Philip D. Greene
  • Patent number: D384699
    Type: Grant
    Filed: February 27, 1996
    Date of Patent: October 7, 1997
    Inventor: Philip D. Greene