Patents by Inventor Emmi Helanne

Emmi Helanne 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).

  • Belt guard for a flotation cell
    Patent number: D644674
    Type: Grant
    Filed: April 20, 2009
    Date of Patent: September 6, 2011
    Assignee: Outotec Oyj
    Inventors: Matti Luukkonen, Emmi Helanne, Jussi Peltokangas
  • Belt guard for a flotation cell
    Patent number: D645067
    Type: Grant
    Filed: April 20, 2009
    Date of Patent: September 13, 2011
    Assignee: Outotec Oyj
    Inventors: Matti Luukkonen, Emmi Helanne, Jussi Peltokangas