Patents by Inventor Sointu Ravola

Sointu Ravola 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).

  • Catalyst and process for purifying diesel exhaust gases
    Patent number: 5580533
    Abstract: The invention relates to a catalyst intended for purifying diesel exhaust gases, the catalyst comprising a honeycomb and a support which has been prepared by using titanium dioxide and an inorganic sol, and at least one catalytically active agent.
    Type: Grant
    Filed: October 24, 1994
    Date of Patent: December 3, 1996
    Assignee: Kemira OY
    Inventors: Matti Kivioja, Sointu Ravola, Thomas Slotte, Teuvo Maunula, Matti H ark onen, Pirkko Virta