Patents by Inventor Dirk Van Wouwe

Dirk Van Wouwe 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).

  • Synthetic crystal aggregates of xonotlite and process for preparing same
    Patent number: 4849195
    Abstract: In synthetic, substantially spherical crystal aggregates of xonotlite having a particle size of more than 20 microns, and preferably up to 150 microns, up to 30% of the silicon atoms can be replaced by titanium or zirconium atoms, and inert particles can be incorporated in the crystal aggregates.
    Type: Grant
    Filed: May 10, 1988
    Date of Patent: July 18, 1989
    Assignee: Redco N.V.
    Inventors: Octavian Anton, Dirk Van Wouwe
  • Silica-particles containing alumina, process for preparing same and the use thereof
    Patent number: 4720475
    Abstract: Amorphous, substantially spherical silica particles obtained by acidic hydrolysis of substantially spherical synthetic crystalline calcium silicates having a size of from 20 to 120 microns are coated with a layer comprising silica and alumina. The silica particles obtained may be directly employed as catalysts for the oligomerization of olefins and, having been loaded with platinum, as hydrocracking catalysts.
    Type: Grant
    Filed: October 20, 1986
    Date of Patent: January 19, 1988
    Assignee: Redco N.V.
    Inventors: Octavian Anton, Dirk Van Wouwe, Georges Poncelet, Pierre Jacobs, Johan Martens