Patents by Inventor Matti H ark onen

Matti H ark onen 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 method for manufacturing the same
    Patent number: 5612277
    Abstract: A catalyst is made of at least two metal foil strips, the transverse corrugations having been formed in at least one of them. The metal foil strips are formed into a honeycomb containing channels. The strips are coated with a support or with supports, and at least one catalytically active agent such as a noble metal is added to the coated strips in order to produce a catalytic surface. In this case the catalytic surface has the physical structure derived from the coating. The honeycomb has at least two catalytic surfaces differing from each other with respect to at least the support or the physical structure.
    Type: Grant
    Filed: February 28, 1995
    Date of Patent: March 18, 1997
    Assignee: Kemira OY
    Inventors: Matti H ark onen, Thomas Slotte, Matti Kivioja
  • 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