Patents by Inventor Lesibana Peter Ledwaba

Lesibana Peter Ledwaba 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).

  • Catalysts
    Patent number: 9327273
    Abstract: A method of preparing a catalyst precursor comprises contacting a catalyst support material with a tungsten compound, to obtain a tungsten-containing catalyst support material. The tungsten-containing catalyst support material is calcined at a temperature above 900° C. to obtain a modified catalyst support. A precursor compound of an active catalyst component is introduced onto and/or into the modified catalyst support thereby to obtain a catalyst precursor.
    Type: Grant
    Filed: January 5, 2012
    Date of Patent: May 3, 2016
    Assignee: SASOL TECHNOLOGY (PROPRIETARY) LIMITED
    Inventors: Sean Barradas, Jacobus Lucas Visagie, Lesibana Peter Ledwaba, Dirk Niemeyer
  • CATALYSTS
    Publication number: 20130317264
    Abstract: A method of preparing a catalyst precursor comprises contacting a catalyst support material with a tungsten compound, to obtain a tungsten-containing catalyst support material. The tungsten-containing catalyst support material is calcined at a temperature above 900° C. to obtain a modified catalyst support. A precursor compound of an active catalyst component is introduced onto and/or into the modified catalyst support thereby to obtain a catalyst precursor.
    Type: Application
    Filed: January 5, 2012
    Publication date: November 28, 2013
    Applicant: SASOL TECHNOLOGY (PROPRIETARY) LIMITED
    Inventors: Sean Barradas, Jacobus Lucas Visagie, Lesibana Peter Ledwaba, Dirk Niemeyer