Patents Assigned to Lin-Zhi International
  • Patent number: 7560239
    Abstract: Methods and kits are provided for the simultaneous detection of multiple analytes, i.e. to the determination of whether one or more of a plurality of analytes is present in a sample, particularly the plurality of analytes are structurally unrelated or significantly different, particularly to whether one or more of such analytes is present in a sample in a concentration that is above a predetermined minimum or cutoff value, and particularly for such analytes with different cutoffs. The methods and kits are particularly useful for-screening for the presence of a plurality of drugs (licit and/or illicit), performance-enhancing substances, and other chemicals, and involve a competitive enzyme immunoassay employing one or more conjugates of G6PDH with a plurality of the analytes.
    Type: Grant
    Filed: June 4, 2002
    Date of Patent: July 14, 2009
    Assignee: Lin-Zhi International Inc.
    Inventors: Marie Lin, Tom Chia, Chiu Chin Chang
  • Publication number: 20060078955
    Abstract: The present invention discloses methods and kits for retrieving a cannabinoid from an oral fluid collection device having adsorbed the cannabinoid and to prepare an oral fluid specimen for the determination of ?9-tetrahydrocaninabinol (?9-THC) concentration qualitatively or quantitatively by an enzyme immunoassay. The methods and kits are particularly useful in preserving the ?9-THC quantitatively from oral fluid samples during the process of collection and preparation.
    Type: Application
    Filed: October 13, 2004
    Publication date: April 13, 2006
    Applicant: Lin-Zhi International
    Inventors: Cheng-I Lin, Tom Chia, Marie Lin, Michael Coyer
  • Publication number: 20060046273
    Abstract: The present invention discloses homogeneous enzyme immunoassay systems, methods and kits useful for the qualitatively and quantitatively determination of analytes in oral fluid samples. The system involves a competitive enzyme immunoassay employing a conjugate comprising glucose-6-phosphate dehydrogenase (G6PDH) and an analyte. The methods and kits are particularly useful in the detection of recent drug use and for fast determination of analytes using auto-analyzers.
    Type: Application
    Filed: August 27, 2004
    Publication date: March 2, 2006
    Applicant: Lin-Zhi International Inc.
    Inventors: Cheng-I Lin, Marie Lin, Tom Chia
  • Publication number: 20030224373
    Abstract: Methods and kits are provided for the simultaneous detection of multiple analytes, i.e. to the determination of whether one or more of a plurality of analytes is present in a sample, particularly the plurality of analytes are structurally unrelated or significantly different, particularly to whether one or more of such analytes is present in a sample in a concentration that is above a predetermined minimum or cutoff value, and particularly for such analytes with different cutoffs. The methods and kits are particularly useful for-screening for the presence of a plurality of drugs (licit and/or illicit), performance-enhancing substances, and other chemicals, and involve a competitive enzyme immunoassay employing one or more conjugates of G6PDH with a plurality of the analytes.
    Type: Application
    Filed: June 4, 2002
    Publication date: December 4, 2003
    Applicant: Lin-Zhi International Inc.
    Inventors: Marie Lin, Tom Chia, Chiu Chin Chang