Patents by Inventor Sirkku Johanna Ronka

Sirkku Johanna Ronka 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).

  • COATED RECYCLABLE PAPER OR PAPERBOARD AND METHODS FOR THEIR PRODUCTION
    Publication number: 20110262745
    Abstract: A method is provided for producing a wide range of high quality coated recyclable paper or paperboard for use in a variety of applications. In accordance with the process, paper or paperboard is coated with a polymer emulsion in one or more coating stations which are off-line from a paper or paperboard machine. The process provides coated paper or paperboard products with enhanced barrier properties.
    Type: Application
    Filed: November 5, 2009
    Publication date: October 27, 2011
    Inventor: Sirkku Johanna Ronka