Patents by Inventor Fiona Hess

Fiona Hess 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).

  • Tetramerization of olefins
    Publication number: 20060229480
    Abstract: The invention describes a process for tetramerisation of olefins wherein the product stream of the process contains more than 30% of the tetramer olefin. The process includes the step of contacting an olefinic feedstream with a catalyst system containing a transition metal compound and a heteroatomic ligand.
    Type: Application
    Filed: December 19, 2003
    Publication date: October 12, 2006
    Inventors: Kevin Blann, Annette Bollmann, John Dixon, Arno Neveling, David Morgan, Hulisani Maumela, Esna Killian, Fiona Hess, Stefanus Otto, Lana Pepler, Hamdani Mahomed, Matthew Overett
  • Trimerisation of olefins
    Publication number: 20060211903
    Abstract: The invention describes a process for trimerisation olefins, which process includes the step of contacting an olefinic feedstream with a catalyst system which includes a transition metal compound and a heteroatomic ligand and wherein the trimer is an olefin and wherein the heteroatomic ligand is described by the following general formula (R)nA-B-C(R)m.
    Type: Application
    Filed: December 19, 2003
    Publication date: September 21, 2006
    Inventors: Kevin Blann, Annette Bollmann, John Dixon, Arno Neveling, David Morgan, Hulisani Maumela, Esna Killian, Fiona Hess, Stefanus Otto, Matthew overett
  • Tetramerization of olefins
    Publication number: 20060173226
    Abstract: The invention describes a process for tetramerisation of olefins wherein the product stream of the process contains more than 30% of the tetramer olefin. The process includes the step of contacting an olefinic feedstream with a catalyst system containing a transition metal compound and a heteroatomic ligand.
    Type: Application
    Filed: December 19, 2003
    Publication date: August 3, 2006
    Inventors: Kevin Blann, Annette Bollmann, John Dixon, Arno Neveling, David Morgan, Hulisani Maumela, Esna Killian, Fiona Hess, Stefanus Otto, Matthew Overett, Michael Green
  • Trimerisation and oligomerisation of olefins using a chromium based catalyst
    Publication number: 20050131262
    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 sulfur and at least 2 heteroatoms are not the same. The invention also provides a multidentate mixed heteroatomic ligand for an oligomerisation of olefins catalyst, which ligand includes at least three heteroatoms of which at least one is a sulfur atom. The ligand may also contain, in addition to sulfur, at least one nitrogen or phosphorous heteroatom.
    Type: Application
    Filed: December 19, 2002
    Publication date: June 16, 2005
    Inventors: John Dixon, Peter Wasserscheid, David McGuinness, Fiona Hess, Hulisani Maumela, David Morgan, Annnette Bollman
  • Trimerisation and oligomerisation of olefins using a chromium based catalyst
    Publication number: 20050119516
    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 oligomerisation 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: Application
    Filed: December 19, 2002
    Publication date: June 2, 2005
    Inventors: John Dixon, Jacobus Grove, Peter Wasserscheid, David McGuinness, Fiona Hess, Hulisani Maumela, David Morgan, Annette Bollman