Patents by Inventor Felix Van Der Kooij

Felix Van Der Kooij 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 fluid
    Patent number: 8394743
    Abstract: A water-based, shear-thinning process fluid comprises bentonite, aluminum hydroxide particles, and salt. The median diameter (by weight) of the aluminum hydroxide particles does not exceed 2 ?m.
    Type: Grant
    Filed: January 31, 2008
    Date of Patent: March 12, 2013
    Assignee: M-I L.L.C.
    Inventors: Felix Van Der Kooij, Henk Lekkerkerker, Edo Sicco Boek
  • Process Fluid
    Publication number: 20080200350
    Abstract: A water-based, shear-thinning process fluid comprises bentonite, alumnium hydroxide particles, and salt. The median diameter (by weight) of the aluminium hydroxide particles does not exceed 2 ?m.
    Type: Application
    Filed: January 31, 2008
    Publication date: August 21, 2008
    Inventors: Felix Van Der Kooij, Henk Lekkerkerker, Edo Sicco Boek
  • Process fluid
    Patent number: 7338922
    Abstract: A water-based, shear-thinning process fluid comprises bentonite, aluminium hydroxide particles, and salt. The median diameter (by weight) of the aluminium hydroxide particles does not exceed 2 ?m.
    Type: Grant
    Filed: August 6, 2002
    Date of Patent: March 4, 2008
    Assignee: M-I L.L.C.
    Inventors: Felix Van Der Kooij, Henk Lekkerkerker, Edo Sicco Boek
  • Process fluid
    Publication number: 20040242431
    Abstract: A water-based, shear-thinning process fluid comprises bentonite, aluminium hydroxide particles, and salt. The median diameter (by weight) of the aluminium hydroxide particles does not exceed 2 &mgr;m.
    Type: Application
    Filed: July 2, 2004
    Publication date: December 2, 2004
    Inventors: Felix Van Der Kooij, Henk Lekkerkerker, Edo Sicco Boek