Patents by Inventor Helena Louie

Helena Louie 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).

  • Flagellin gene, flaC of
    Patent number: 7192725
    Abstract: Purified and isolated nucleic acid molecules are provided which encode a FlaC flagellin protein of a strain of Campylobacter, particularly C. jejuni, or a fragment or an analog of the FlaC flagellin protein. The nucleic acid molecules may be used to produce proteins free of contaminants derived from bacteria normally containing the FlaA or FlaB proteins for purposes of diagnostics and medical treatment. Furthermore, the nucleic acid molecules, proteins encoded thereby and antibodies raised against the proteins, may be used in the diagnosis of infection.
    Type: Grant
    Filed: April 29, 2003
    Date of Patent: March 20, 2007
    Assignee: University of Toronto
    Inventors: Voon Loong Chan, Helena Louie
  • Flagellin gene, flaC of Campylobacter
    Publication number: 20040006037
    Abstract: Purified and isolated nucleic acid molecules are provided which encode a FlaC flagellin protein of a strain of Campylobacter, particularly C. jejuni, or a fragment or an analog of the FlaC flagellin protein. The nucleic acid molecules may be used to produce proteins free of contaminants derived from bacteria normally containing the FlaA or FlaB proteins for purposes of diagnostics and medical treatment. Furthermore, the nucleic acid molecules, proteins encoded thereby and antibodies raised against the proteins, may be used in the diagnosis of infection.
    Type: Application
    Filed: April 29, 2003
    Publication date: January 8, 2004
    Inventors: Voon Loong Chan, Helena Louie
  • Flagellin gene, FlaC of Campylobacter
    Patent number: 6585980
    Abstract: Purified and isolated nucleic acid molecules are provided which encode a FlaC flagellin protein of a strain of Campylobacter, particularly C. jejuni, or a fragment or an analog of the FlaC flagellin protein. The nucleic acid molecules may be used to produce proteins free of contaminants derived from bacteria normally containing the FlaA or FlaB proteins for purposes of diagnostics and medical treatment. Furthermore, the nucleic acid molecules, proteins encoded thereby and antibodies raised against the proteins, may be used in the diagnosis of infection.
    Type: Grant
    Filed: May 19, 2000
    Date of Patent: July 1, 2003
    Assignee: The University of Toronto
    Inventors: Voon Loong Chan, Helena Louie
  • Flagellin gene, FlaC of campylobacter
    Patent number: 6211159
    Abstract: Purified and isolated nucleic acid molecules are provided which encode a FlaC flagellin protein of a strain of Campylobacter, particularly C. jejuni, or a fragment or an analog of the FlaC flagellin protein. The nucleic acid molecules may be used to produce proteins free of contaminants derived from bacteria normally containing the FlaA or FlaB proteins for purposes of diagnostics and medical treatment. Furthermore, the nucleic acid molecules, proteins encoded thereby and antibodies raised against the proteins, may be used in the diagnosis of infection.
    Type: Grant
    Filed: April 11, 1997
    Date of Patent: April 3, 2001
    Assignee: University of Toronto
    Inventors: Voon Loong Chan, Helena Louie
  • Basal body rod protein FlgF of campylobacter
    Patent number: 6020125
    Abstract: Purified and isolated nucleic acid molecules are provided which encode a basal body rod protein of a strain of Campylobacter, particularly C. jejuni, or a fragment or an analog of the basal body rod protein. The nucleic acid molecules may be used to produce proteins free of contaminants derived from bacteria normally containing the FlgF or FlgG proteins for purposes of diagnostics and medical treatment. Furthermore, the nucleic acid molecules, proteins encoded thereby and antibodies raised against the proteins, may be used in the diagnosis of infection.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: February 1, 2000
    Assignee: Connaught Laboratories Limited
    Inventors: Voon Loong Chan, Helena Louie
  • Basal body rod protein genes of campylobacter
    Patent number: 5827654
    Abstract: Purified and isolated nucleic acid molecules are provided which encode a basal body rod protein of a strain of Campylobacter, particularly C. jejuni, or a fragment or an analog of the basal body rod protein. The nucleic acid molecules may be used to produce proteins free of contaminants derived from bacteria normally containing the FlgF or FlgG proteins for purposes of diagnostics and medical treatment. Furthermore, the nucleic acid molecules, proteins encoded thereby and antibodies raised against the proteins, may be used in the diagnosis of infection.
    Type: Grant
    Filed: May 8, 1995
    Date of Patent: October 27, 1998
    Assignee: University of Toronto
    Inventors: Voon Loong Chan, Helena Louie