Patents by Inventor Daniel S. Papenfuss

Daniel S. Papenfuss 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).

  • Tear initiation and directional tear films and packages made therefrom
    Patent number: 7862869
    Abstract: The present invention provides a flexible multilayer packaging film and packages formed therefrom wherein the films include a first film layer comprising a first biaxially-oriented polymer selected from the group consisting of a polyester, a polyolefin, a polyamide, and a blend thereof and a surface-roughened portion, a second film layer comprising an adhesive, a third film layer comprising a barrier material, a fourth film layer comprising a second biaxially-oriented polymer selected from the group consisting of a polyester, a polyolefin, a polyamide, and a blend thereof and at least one score-line; wherein the packages comprise a tear-initiation area and a directional tear zone.
    Type: Grant
    Filed: October 20, 2003
    Date of Patent: January 4, 2011
    Assignee: Milprint, Inc.
    Inventors: Daniel S. Papenfuss, Michael Scott Hartman, Amy Lynn Kraimer, Sam Edward Wuest