Patents by Inventor Ulla Heckmann

Ulla Heckmann 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).

  • Publication number: 20090123094
    Abstract: Disclosed is a packaging (1) for bulk material, especially a bag made of plastic film, comprising a packaging wall (2) which envelops the bulk material and is provided with at least one multilayered wall area (6) that is composed of at least one inner layer (7) and at least one outer layer (8). Each layer has at least one air-permeable planar piece (9). At least one conducting element (12) for the air flow that penetrates the air-permeable planar pieces is disposed between the inner layer (7) and the outer layer (8). The conducting element (12) is embodied as at least one section of an airtight intermediate layer which is arranged such that at least the air-permeable planar pieces (9) of the inner layer (7) and/or the outer layer (8) are covered.
    Type: Application
    Filed: March 30, 2007
    Publication date: May 14, 2009
    Inventors: Michael Kreymborg, Ulla Heckmann