Patents by Inventor Elisa Tuhkanen

Elisa Tuhkanen 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).

  • Paper coated with polylactide and a method for making it
    Patent number: 6153306
    Abstract: The invention relates to a polylactide-coated paper or board product which is made by coextrusion wherein the polylactide is extruded together with a conventional polymer, such as polyolefin, onto the surface of the paper, and after extrusion the polyolefin film is removed and recycled.
    Type: Grant
    Filed: January 20, 1999
    Date of Patent: November 28, 2000
    Assignee: Neste Oy
    Inventors: Johan-Fredrik Selin, Maria Skog, Elisa Tuhkanen