Patents by Inventor Robert Jan Jonker

Robert Jan Jonker 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).

  • Method and apparatus for measuring the accessibility of porous materials with regard to large compounds
    Patent number: 6828153
    Abstract: The present invention provides a method for testing the accessibility of porous materials with regard to large, often high-molecular weight compounds and correlating said accessibility to the porous material's accessibility under conditions of use, i.e. the application conditions.
    Type: Grant
    Filed: May 31, 2002
    Date of Patent: December 7, 2004
    Assignee: Akzo Nobel N.V.
    Inventors: Robert Jan Jonker, Paul O'Connor, Hendrikus Nicolaas Johannes Wijngaards
  • Method and apparatus for measuring the accessibility of porous materials with regard to large compounds
    Publication number: 20020187555
    Abstract: The present invention provides a method for testing the accessibility of porous materials with regard to large, often high-molecular weight compounds and correlating said accessibility to the porous material's accessibility under conditions of use, i.e. the application conditions.
    Type: Application
    Filed: May 31, 2002
    Publication date: December 12, 2002
    Inventors: Robert Jan Jonker, Paul O'Connor, Hendrikus Nicolaas Johannes Wijngaards
  • Method of analyzing microporous material
    Publication number: 20020110921
    Abstract: A method of analyzing the pores of a microporous material, the method comprising the following steps:
    Type: Application
    Filed: November 13, 2001
    Publication date: August 15, 2002
    Inventors: Jacobus Nicolaas Louwen, Robert Jan Jonker
  • Apparatus and method for testing samples of a solid material
    Publication number: 20010051376
    Abstract: The invention pertains to an apparatus for testing samples of a solid material, such as a catalyst or an adsorbent, contained in a reactor tube, said apparatus comprising a holder for a tube and a flow module for generating a carrier fluid flow containing a probe through a tube positioned in the holder. The apparatus further comprises a magazine for tubes or means for accommodating a magazine for tubes, and means for replacing a tube positioned in the holder with a tube from the magazine.
    Type: Application
    Filed: April 16, 2001
    Publication date: December 13, 2001
    Inventor: Robert Jan Jonker