Patents by Inventor Rauni Ruuska

Rauni Ruuska 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).

  • Hydrogenation catalyst for use in a hydrogen peroxide process, and method for the preparation thereof
    Patent number: 5435985
    Abstract: The invention relates to a hydrogenation catalyst for use in the preparation of hydrogen peroxide and to a method for the preparation of the catalyst. The hydrogenation catalyst contains in the main platinum group metal, of which more than 50 wt % is palladium. According to the invention, at least one additional metal is added to the platinum group metal.
    Type: Grant
    Filed: February 8, 1994
    Date of Patent: July 25, 1995
    Assignee: Kemira Oy
    Inventors: Arto Pukkinen, Lauri Heikkinen, Rauni Ruuska