Patents by Inventor Jens- Mikael Gottberg

Jens- Mikael Gottberg 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).

  • Method for controlling speck defects in recycling paper product
    Patent number: 5897744
    Abstract: The present invention is related to a method of manufacturing a paper product containing anionic laminating, coating or sizing agents, said paper product being free from carry-over speck defects in recycle use. The method is characterized in that a cationic compound is added to the paper web after the formation of the web.
    Type: Grant
    Filed: April 19, 1996
    Date of Patent: April 27, 1999
    Assignee: Raisio Chemicals Oy
    Inventors: Antti Hamunen, Kari Nurmi, Jens- Mikael Gottberg