Patents by Inventor Nils .ANG.ke Larsson

Nils .ANG.ke Larsson 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: 6022448
    Abstract: The present invention relates to coated paperboard for formed articles, which paperboard consists of a fibermatrix in one, two or more layers and a coating and has adequate surface for printing and adequate surface gloss for each specific type of formed articles. The paperboard has been calendered after coating with a heatable calender having a soft extended nip, and has reduced density and reduced grammage at a given value for bending force compared to corresponding coated paperboard which has been calendered before or during and after coating with a heatable or non-heatable calender having a hard or soft nip. Additionally, a production line for the production of such coated paperboard, a process for the production of such coated paperboard, and a method of reducing the susceptibility to crack formation at folding of such a coated paperboard, are described.
    Type: Grant
    Filed: October 10, 1997
    Date of Patent: February 8, 2000
    Assignee: Korsnab AB
    Inventors: Goran Eriksson, Klas-Erik Karlsson, Nils .ANG.ke Larsson, Sven H.ang.kansson