Patents by Inventor Weixing Luo

Weixing Luo 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).

  • Reagents and methods for mycophenolic acid immunoassay
    Patent number: 7138504
    Abstract: The invention teaches derivatives of mycophenolic alcohol and methods of preparing immunogens and other conjugates useful in immunoassays for quantitatively measuring concentrations of mycophenolic acid (MPA) and/or active metabolites of MPA in patient specimens. Antibodies produced from the disclosed immunogens capable of binding to MPA with cross-reactivity of no more than 5% with inactive metabolites and commonly co-prescribed drugs. Further, immunoassays for measuring the concentration of MPA using such antibodies are taught.
    Type: Grant
    Filed: August 11, 2005
    Date of Patent: November 21, 2006
    Assignee: Microgenics Corporation
    Inventors: Vani B. Bodepudi, Amy P. Tsai, Weixing Luo, Rueyming Loor
  • Reagents and methods for mycophenolic acid immunoassay
    Publication number: 20060035297
    Abstract: The invention teaches derivatives of mycophenolic alcohol and methods of preparing immunogens and other conjugates useful in immunoassays for quantitatively measuring concentrations of mycophenolic acid (MPA) and/or active metabolites of MPA in patient specimens. Antibodies produced from the disclosed immunogens capable of binding to MPA with cross-reactivity of no more than 5% with inactive metabolites and commonly co-prescribed drugs. Further, immunoassays for measuring the concentration of MPA using such antibodies are taught.
    Type: Application
    Filed: August 11, 2005
    Publication date: February 16, 2006
    Inventors: Vani Bodepudi, Amy Tsai, Weixing Luo, Rueyming Loor
  • Chromogenic substrate to detect urine adulteration
    Patent number: 6503726
    Abstract: A device and method to detect oxidant adulterants added to a sample to prevent detection of tetrahydrocannabinol and/or tetrahydrocannabinol metabolites. The device and method detect popularly available adulterants such as chromate and nitrite through their reaction with a chromogenic substrate for a peroxidase enzyme. The substrate may be applied to a pad. A change in color in the presence of the oxidant may be detected directly or indirectly. The device and method may be used to detect the presence of any oxidant adulterant and is not specific for only one or a few adulterants added to a urine sample submitted for drug testing.
    Type: Grant
    Filed: February 27, 2001
    Date of Patent: January 7, 2003
    Assignee: Applied Biotech, Inc.
    Inventors: Lakshmi Anne, Weixing Luo, Ker-kong Tung
  • Chromogenic substrate to detect urine adulteration
    Publication number: 20020160439
    Abstract: A device and method to detect oxidant adulterants added to a sample to prevent detection of tetrahydrocannabinol and/or tetrahydrocannabinol metabolites. The device and method detect popularly available adulterants such as chromate and nitrite through their reaction with a chromogenic substrate for a peroxidase enzyme. The substrate may be applied to a pad. A change in color in the presence of the oxidant may be detected directly or indirectly. The device and method may be used to detect the presence of any oxidant adulterant and is not specific for only one or a few adulterants added to a urine sample submitted for drug testing.
    Type: Application
    Filed: February 27, 2001
    Publication date: October 31, 2002
    Applicant: Applied Biotech, Inc.
    Inventors: Lakshmi Anne, Weixing Luo, Ker-kong Tung