Patents by Inventor Alta Jansen Van Rensburg

Alta Jansen Van Rensburg 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).

  • Catalyst system suitable for use in the metathesis of unsaturated hydrocarbons
    Patent number: 5962363
    Abstract: A catalyst system, which is suitable for use in the metathesis of unsaturated hydrocarbons, comprises silica, alumina and an alkyl tin compound in intimate contact with one another. The catalyst system is characterized thereby that it contains no transition metal such as tungsten, molybdenum or rhenium.
    Type: Grant
    Filed: November 26, 1997
    Date of Patent: October 5, 1999
    Assignee: Sasol Technology (Proprietary) Limited
    Inventors: Jan Adriaan Kruger du Plessis, Hermanus Cornelius Moolman Vosloo, Alta Jansen van Rensburg
  • Metathesis process for treating unsaturated hydrocarbons
    Patent number: 5942653
    Abstract: A process for treating unsaturated hydrocarbons comprises subjecting an unsaturated hydrocarbon component to metathesis in the presence of a catalyst system comprising silica, alumina and an alkyl tin compound, thereby to form one or more different hydrocarbons.
    Type: Grant
    Filed: September 6, 1996
    Date of Patent: August 24, 1999
    Assignee: Sasol Technology (Proprietary) Limited
    Inventors: Jan Adriaan Kruger Du Plessis, Hermanus Cornelius Moolman Vosloo, Alta Jansen Van Rensburg