Patents by Inventor Thabiso N'timkulu

Thabiso N'timkulu 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).

  • Stable haloperoxidase method
    Patent number: 4937191
    Abstract: A method producing a non-heme haloperoxidase which is substantially resistant to inactivation, at room temperature, in up to 0.3M H.sub.2 O.sub.2 for up to 25 hours, and up to 0.5mM HOCl for up to two minutes. One such haloperoxidase, isolated from Curvularia inaequalis, contains about 2 gram atoms of zinc per molecule. A halogenation reaction employing the enzyme can be performed at H.sub.2 O.sub.2 and hypohalous acid concentrations which produce rapid inactivation of heme-containing haloperoxidases.
    Type: Grant
    Filed: November 12, 1987
    Date of Patent: June 26, 1990
    Assignee: Cetus Corporation
    Inventors: John Geigert, Te-Ning E. Liu, Thabiso N'timkulu
  • Stable haloperoxidase method
    Patent number: 4707446
    Abstract: A method of producing a non-heme haloperoxidase which is substantially resistant to inactivation, at room temperature, in up to 0.3M H.sub.2 O.sub.2 for up to 25 hours, and up to 0.5 mM HOCl for up to two minutes. One such haloperoxidase, isolated from Curvularia inaequalis, contains about 2 gram atoms of zinc per molecule. A halogenation reaction employing the enzyme can be performed at H.sub.2 O.sub.2 and hypohalous acid concentrations which produce rapid inactivation of heme-containing haloperoxidases.
    Type: Grant
    Filed: May 24, 1983
    Date of Patent: November 17, 1987
    Assignee: Cetus Corporation
    Inventors: John Geigert, Te-Ning E. Liu, Thabiso N'timkulu