Patents by Inventor Lars Bergholts

Lars Bergholts 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: 6866907
    Abstract: The present invention provides a packaging material of single multi-layer type including at least one layer of plastic having improved light barrier properties, and which layer of plastic includes particles of carbon black and wherein the plastic layer containing the carbon black further includes mineral particles substantially uniformly distributed within the plastic material of that layer in a quantity between about 3% and 80% of the total weight of the layer. The packaging materials have superior light barrier properties over similar materials in the art, and can be used to enhance the packaging and storage of light-sensitive food products.
    Type: Grant
    Filed: May 18, 1999
    Date of Patent: March 15, 2005
    Assignee: Tetra Laval Holdings & Finance S.A.
    Inventors: Lars Bergholts, Lotta Klint