Patents by Inventor Carolus H. M. Kamphuis

Carolus H. M. Kamphuis 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).

  • Process for the preparation and purification of a hydroxylammonium salt solution
    Patent number: 5362398
    Abstract: The invention relates to a process for the preparation and purification of a hydroxylammonium salt solution, wherein the hydroxylammonium salt solution is separated by filtration from an aqueous reaction mixture, containing solid catalyst particles among other things, the filtration technique applied being a crossflow filtration technique, the pore diameter of the filter medium being 0.01-10 .mu.m and the catalyst particles having an average size of 0.1-25 .mu.m.
    Type: Grant
    Filed: July 1, 1993
    Date of Patent: November 8, 1994
    Assignee: D.S.M. N.V.
    Inventors: Carolus H. M. Kamphuis, Hendrikus J. H. Rouhof