Patents by Inventor Johannis Alousius Zacharias Pieterse

Johannis Alousius Zacharias Pieterse 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 the removal of NOand catalyst therefor
    Patent number: 7459135
    Abstract: The invention relates to a method for the catalytic reduction of NOx in an NOx containing gas using methane in the presence of a catalyst which comprises a palladium-containing zeolite. In this process one uses a zeolite based on rings of 12 oxygen atoms, wherein the zeolite also comprises scandium, yttrium, a lanthanide or a combination thereof. The invention also relates to the catalyst itself and the preparation thereof.
    Type: Grant
    Filed: July 18, 2003
    Date of Patent: December 2, 2008
    Assignee: Stichting Energieonderzoek Centrum Nederland
    Inventors: Johannis Alousius Zacharias Pieterse, Rudolf Willem Van Den Brink