Patents by Inventor Ron Duane Norwood

Ron Duane Norwood 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).

  • Rupturable opening for sealed container
    Patent number: 7556191
    Abstract: A container formed from a paperboard laminate and including a rupturable opening for gaining access to the contents of the container, the opening being defined by an embossment pattern in a wall of the container. The embossment defines a weakened area which includes the layers of the laminate, but without destruction or deterioration of selected ones of the barrier/sealing layers of the laminate. A method is disclosed.
    Type: Grant
    Filed: July 16, 2004
    Date of Patent: July 7, 2009
    Assignee: Evergreen Packaging, Inc.
    Inventors: Stephen J. Hewitt, Kara Marie Gustafson, Manfred F. Maurer, Ron Duane Norwood, Alexander Craig Bushman