Patents by Inventor Wai C. J. Lo

Wai C. J. Lo 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).

  • Diagnosis of fungal infections with a chitinase
    Patent number: 6093552
    Abstract: Chitinase fungal diagnostic reagents comprising a chitinase conjugate comprising a chitinase enzyme and a label, the label selected from among a flourescent or a radioactive compound, an enzyme and a dye, the said chitinase fungal diagnostic reagent comprises a substantially pure aqueous solution of said chitinase conjugate; kits for detecting a fungal cell wall glucosamine compound in a biological specimen comprising the chitinase fungal diagnostic reagent and a filter capable of collecting the fungal cell wall glucosamine compound; and methods for detecting a fungal cell wall glucosamine compound in a biological specimen.
    Type: Grant
    Filed: December 20, 1996
    Date of Patent: July 25, 2000
    Inventors: Roger A. Laine, Wai C. J. Lo
  • Method for detecting eubacteria in biological samples with catalytically inactive murein binding enzymes
    Patent number: 5935804
    Abstract: A method for detecting eubacteria in biological samples with catalytically inactive murein binding enzyme is presented. The biological sample may be chemically treated with alkali to cleave peptide bonds in the sample before incubating the sample with the catalytically inactive murein binding enzyme.
    Type: Grant
    Filed: March 21, 1997
    Date of Patent: August 10, 1999
    Inventors: Roger A. Laine, Wai C. J. Lo
  • Diagnosis of fungal infections with a chitinase
    Patent number: 5587292
    Abstract: A novel method for detecting chitin, and for diagnosing fungal infections (including yeast infections), with a chitinase or other chitin-specific binding protein. This method should allow the convenient, broad spectrum diagnosis of fungal infections in tissue samples or in body fluids. Fungal infections are a particular problem in immunocompromised hosts such as AIDS patients, where they can cause opportunistic infections. This invention overcomes difficulties experienced by prior methods of diagnosing fungal infections.
    Type: Grant
    Filed: March 9, 1995
    Date of Patent: December 24, 1996
    Assignee: Board of Supervisors of Louisiana State University and Agricultural and Mechanical College
    Inventors: Roger A. Laine, Wai C. J. Lo