Patents by Inventor Bjorn Rose

Bjorn Rose 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: 7182836
    Abstract: The invention relates to a method for delignifying lignocellulosic raw materials by using sulfites in the presence of an alkaline component, especially sodium hydroxide or sodium carbonate or a mixture thereof in an aqueous solution at a high temperature and high pressure. The invention is characterized in that a first partial fragment of the alkaline component is added when the aqueous solution starts to decompose and in that at least a second partial fragment of the alkaline component is added only when delignification begins.
    Type: Grant
    Filed: July 1, 2002
    Date of Patent: February 27, 2007
    Assignee: Voith Paper Fiber Systems GmbH KG
    Inventors: Rudolf Patt, Othar Kordsachia, Bjorn Rose
  • Publication number: 20040177937
    Abstract: The invention relates to a method for delignifying lignocellulosic raw materials by using sulfites in the presence of an alkaline component, especially sodium hydroxide or sodium carbonate or a mixture thereof in an aqueous solution at a high temperature and high pressure. The invention is characterized in that a first partial fragment of the alkaline component is added when the aqueous solution starts to decompose and in that at least a second partial fragment of the alkaline component is added only when delignification begins.
    Type: Application
    Filed: December 29, 2003
    Publication date: September 16, 2004
    Inventors: Rudolf Patt, Othar Kordsachia, Bjorn Rose