Patents by Inventor Michiel J. F. M. Verhaak

Michiel J. F. M. Verhaak 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 preparing primary amines and catalyst system suitable therefor
    Patent number: 5571943
    Abstract: This invention relates to a process for preparing primary amines by hydrogenation of mono and/or dinitrile with hydrogen in the presence of a nickel and/or cobalt catalyst on support and optionally in the presence of ammonia, this process being characterized in that a nickel and/or cobalt catalyst on support is used, optionally in combination with at least one solid, reaction medium-insoluble cocatalyst, the catalyst and/or the cocatalyst being substantially nonacid.
    Type: Grant
    Filed: March 28, 1995
    Date of Patent: November 5, 1996
    Assignee: Engelhard De Meern B.V.
    Inventors: Frederik Borninkhof, John W. Geus, Michiel J. F. M. Verhaak