Patents by Inventor Cronje Grove

Cronje Grove 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).

  • Trimerisation and oligomerisation of olefins using a chromium based catalyst
    Patent number: 7361623
    Abstract: The invention provides a mixed heteroatomic ligand for an oligomerisation of olefins catalyst, which ligand includes at least three heteroatoms, of which at least one heteroatom is nitrogen and at least two heteroatoms are not the same. The invention also provides a multidentate mixed heroatomic ligand for an oligomerization of olefins catalyst, which ligand includes at least three heteroatoms. At least one heteroatom may be nitrogen and at least 2 heteroatoms may not be the same.
    Type: Grant
    Filed: December 19, 2002
    Date of Patent: April 22, 2008
    Assignee: Sasol Technology (Pty) Ltd.
    Inventors: John Thomas Dixon, Jacobus Johannes Cronje Grove, Peter Wasserscheid, David Shane McGuinness, Fiona Millicent Hess, Hulisani Maumela, David Hedley Morgan, Annette Bollman
  • Composition Comprising Alcohol Alkoxylates And Their Use
    Publication number: 20080039666
    Abstract: The present invention relates to low foaming non-ionic surfactants being alcohol alkoxylates comprising at least two different oxyalkylene-groups derivable from a mixture of linear an branched alcohols and their use
    Type: Application
    Filed: March 8, 2004
    Publication date: February 14, 2008
    Inventors: Rolf Grothe, Udo Schoenkaes, Cronje Grove, Ulrich Mayer, Francesco Monterisi
  • Hydrocarbon conversion process
    Publication number: 20020183574
    Abstract: The invention provides a hydrocarbon conversion process for converting olefins to longer chain hydrocarbons, the process using a catalyst system including a non-nickel transition metal derived catalyst and one or more ionic liquids at a reaction temperature of between 10° C. and 130° C. and a reaction pressure of up to 100 Bar. The hydrocarbon conversion process may be oligomerisation and trimerisation.
    Type: Application
    Filed: May 23, 2002
    Publication date: December 5, 2002
    Inventors: John Thomas Dixon, Jacobus Johannes Cronje Grove, Alta Ranwell