Patents by Inventor Don Graham Giles

Don Graham Giles 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).

  • Sift proof valve bag
    Patent number: 5967664
    Abstract: A valved bag is provided, having first and second end portions, and at least one in-folded flap member and at least one outer flap member affixed to at least one of the first and second end portions. A cover member is positioned and affixed to the in-folded flap member and outer flap member, prior to final closure of same, for preventing the undesired escape of material from within the bag, subsequent to closure of the ends and filling of the bag.
    Type: Grant
    Filed: August 24, 1998
    Date of Patent: October 19, 1999
    Assignee: Stone Container Corporation
    Inventors: Don Graham Giles, Robert G. Kelley