Patents by Inventor Reinier Franciscus Petrus Grimbergen

Reinier Franciscus Petrus Grimbergen 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).

  • Patent number: 7589198
    Abstract: Process for the preparation of melamine, comprising a first mixing step in which at least two melamine-containing flows, originating from at least two different processes for the preparation of melamine, are brought into contact with each other, with a mixture being formed. In one embodiment, at least one melamine-containing flow contains melamine from a low-pressure gas-phase process for the preparation of melamine and at least one melamine-containing flow contains melamine from a high-pressure liquid-phase process for the preparation of melamine.
    Type: Grant
    Filed: July 29, 2003
    Date of Patent: September 15, 2009
    Assignee: DSM IP Assets B.V.
    Inventors: Tjay Tjien Tjioe, Eric Grolman, Reinier Franciscus Petrus Grimbergen, Michal Kuczynski