Patents by Inventor Ritva Turunen

Ritva Turunen 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 protecting the untrimmed edge of a paperboard or paper
    Patent number: 8414723
    Abstract: The invention relates to a method for protecting the untrimmed edge of paperboard or paper (1), in which method the untrimmed edge (4) of two adjacent paperboards or papers are protected and attached abuttingly together by sealing a separate profile (3) on both sides of the abutment of the edges (4) by means of ultrasound.
    Type: Grant
    Filed: May 14, 2007
    Date of Patent: April 9, 2013
    Assignee: Stora Enso Oyj
    Inventors: Päivi Määttä, Risto Vesanto, Tapani Penttinen, Heli Vesanto, Pentti Järvelä, Marjo Elorae, Tapio Hietaranta, Martti Turunen, Ritva Turunen
  • Method for protecting the untrimmed edge of a paperboard or paper
    Publication number: 20090298662
    Abstract: The invention relates to a method for protecting the untrimmed edge of paperboard or paper (1), in which method the untrimmed edge (4) of two adjacent paperboards or papers are protected and attached abuttingly together by sealing a separate profile (3) on both sides of the abutment of the edges (4) by means of ultrasound.
    Type: Application
    Filed: May 14, 2007
    Publication date: December 3, 2009
    Inventors: Päivi Määttä, Risto Vesanto, Tapani Penttinen, Heli Vesanto, Pentti Järvelä, Marjo Elorae, Tapio Hietaranta, Martti Turunen, Ritva Turunen