Patents by Inventor Qibo Jiang

Qibo Jiang 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).

  • DETECTION OF VITAMINS A AND E BY TANDEM MASS SPECTROMETRY
    Publication number: 20250067758
    Abstract: A method for determining a combined amount of ?-tocopherol and ?-tocopherol in a sample by tandem mass spectrometry includes subjecting the sample to ionization under conditions suitable to produce one or more ions from the ?-tocopherol and ?-tocopherol detectable by mass spectrometry; and determining the amount of one or more of said ions by tandem mass spectrometry, wherein tandem mass spectrometry comprises fragmenting ?-tocopherol and ?-tocopherol ions having a mass to charge ratio of about 416.35±0.80 into one or more fragment ions comprising a fragment ion having a mass to charge ratio of about 151.00±0.80, wherein the amount of the one or more ions determined is related to the combined amount of ?-tocopherol and ?-tocopherol in the sample.
    Type: Application
    Filed: November 7, 2024
    Publication date: February 27, 2025
    Inventors: Sum Chan, Qibo Jiang
  • MASS SPECTROMETRY METHOD FOR MEASURING VITAMIN B6 IN BODY FLUID
    Publication number: 20250054742
    Abstract: Provided are methods of detecting the presence or amount of the active form of vitamin B6, pyridoxal 5?-phosphate, in a body fluid sample using tandem mass spectrometry coupled with liquid chromatography.
    Type: Application
    Filed: October 25, 2024
    Publication date: February 13, 2025
    Inventors: Qibo Jiang, Sum Chan, Richard E. Reitz
  • MASS SPECTROMETRY METHOD FOR MEASURING THIAMINE IN BODY FLUID
    Publication number: 20250002971
    Abstract: Provided are methods for determining the amount of total thiamine in a body fluid sample using liquid chromatography and mass spectrometry. Total thiamine is converted to free thiamine by treatment with an acid phosphatase prior to thiamine separation and quantification.
    Type: Application
    Filed: September 13, 2024
    Publication date: January 2, 2025
    Inventors: Sum Chan, Qibo Jiang, Richard E Reitz
  • Detection of vitamins a and e by tandem mass spectrometry
    Patent number: 12174203
    Abstract: Methods are described for measuring the amount of one or more of vitamin A, ?-tocopherol, and the combination of ?-tocopherol and ?-tocopherol in a sample. More specifically, mass spectrometric methods are described for detecting and quantifying one or more of vitamin A, ?-tocopherol, and the combination of ?-tocopherol and ?-tocopherol in a sample.
    Type: Grant
    Filed: November 28, 2022
    Date of Patent: December 24, 2024
    Assignee: Quest Diagnostics Investments Incorporated
    Inventors: Sum Chan, Qibo Jiang
  • Mass spectrometry method for measuring vitamin B6 in body fluid
    Patent number: 12165861
    Abstract: Provided are methods of detecting the presence or amount of the active form of vitamin B6, pyridoxal 5?-phosphate, in a body fluid sample using tandem mass spectrometry coupled with liquid chromatography.
    Type: Grant
    Filed: September 13, 2023
    Date of Patent: December 10, 2024
    Assignee: Quest Diagnostics Investments Incorporated
    Inventors: Qibo Jiang, Sum Chan, Richard E Reitz
  • Mass spectrometry method for measuring thiamine in body fluid
    Patent number: 12116617
    Abstract: Provided are methods for determining the amount of total thiamine in a body fluid sample using liquid chromatography and mass spectrometry. Total thiamine is converted to free thiamine by treatment with an acid phosphatase prior to thiamine separation and quantification.
    Type: Grant
    Filed: August 10, 2020
    Date of Patent: October 15, 2024
    Assignee: Quest Diagnostics Investments Incorporated
    Inventors: Sum Chan, Qibo Jiang, Richard E. Reitz
  • MASS SPECTROMETRY METHOD FOR MEASURING VITAMIN B6 IN BODY FLUIDS
    Publication number: 20230420235
    Abstract: Provided are methods of detecting the presence or amount of the active form of vitamin B6, pyridoxal 5?-phosphate, in a body fluid sample using tandem mass spectrometry coupled with liquid chromatography.
    Type: Application
    Filed: September 13, 2023
    Publication date: December 28, 2023
    Inventors: Qibo Jiang, Sum Chan, Richard E Reitz
  • Mass spectrometry method for measuring vitamin B6 in body fluid
    Patent number: 11798794
    Abstract: Provided are methods of detecting the presence or amount of the active form of vitamin B6, pyridoxal 5?-phosphate, in a body fluid sample using tandem mass spectrometry coupled with liquid chromatography.
    Type: Grant
    Filed: August 18, 2020
    Date of Patent: October 24, 2023
    Assignee: Quest Diagnostics Investments Incorporated
    Inventors: Qibo Jiang, Sum Chan, Richard E. Reitz
  • DETECTION OF VITAMINS A AND E BY TANDEM MASS SPECTROMETRY
    Publication number: 20230096666
    Abstract: Methods are described for measuring the amount of one or more of vitamin A, ?-tocopherol, and the combination of ?-tocopherol and ?-tocopherol in a sample. More specifically, mass spectrometric methods are described for detecting and quantifying one or more of vitamin A, ?-tocopherol, and the combination of ?-tocopherol and ?-tocopherol in a sample.
    Type: Application
    Filed: November 28, 2022
    Publication date: March 30, 2023
    Inventors: Sum CHAN, Qibo JIANG
  • Detection of vitamins A and E by tandem mass spectrometry
    Patent number: 11513130
    Abstract: Methods are described for measuring the amount of one or more of vitamin A, ?-tocopherol, and the combination of ?-tocopherol and ?-tocopherol in a sample. More specifically, mass spectrometric methods are described for detecting and quantifying one or more of vitamin A, ?-tocopherol, and the combination of ?-tocopherol and ?-tocopherol in a sample.
    Type: Grant
    Filed: December 7, 2020
    Date of Patent: November 29, 2022
    Assignee: Quest Diagnostics Investment Incoporated
    Inventors: Sum Chan, Qibo Jiang
  • METHODS FOR DETECTING VITAMIN C BY MASS SPECTROMETRY
    Publication number: 20210239718
    Abstract: Provided are methods for determining the amount of vitamin C in a sample using mass spectrometry. The methods generally involve ionizing vitamin C in a sample and detecting and quantifying the amount of the ion to determine the amount of vitamin C in the sample.
    Type: Application
    Filed: April 19, 2021
    Publication date: August 5, 2021
    Inventors: Qibo Jiang, Richard E. Reitz, Sum Chan
  • DETECTION OF VITAMINS A AND E BY TANDEM MASS SPECTROMETRY
    Publication number: 20210096141
    Abstract: Methods are described for measuring the amount of one or more of vitamin A, ?-tocopherol, and the combination of ?-tocopherol and ?-tocopherol in a sample. More specifically, mass spectrometric methods are described for detecting and quantifying one or more of vitamin A, ?-tocopherol, and the combination of ?-tocopherol and ?-tocopherol in a sample.
    Type: Application
    Filed: December 7, 2020
    Publication date: April 1, 2021
    Inventors: Sum CHAN, Qibo JIANG
  • Detection of vitamins A and E by tandem mass spectrometry
    Patent number: 10859584
    Abstract: Methods are described for measuring the amount of one or more of vitamin A, ?-tocopherol, and the combination of ?-tocopherol and ?-tocopherol in a sample. More specifically, mass spectrometric methods are described for detecting and quantifying one or more of vitamin A, ?-tocopherol, and the combination of ?-tocopherol and ?-tocopherol in a sample.
    Type: Grant
    Filed: February 8, 2019
    Date of Patent: December 8, 2020
    Assignee: Quest Diagnostics Investments Incorporated
    Inventors: Sum Chan, Qibo Jiang
  • MASS SPECTROMETRY METHOD FOR MEASURING VITAMIN B6 IN BODY FLUID
    Publication number: 20200381230
    Abstract: Provided are methods of detecting the presence or amount of the active form of vitamin B6, pyridoxal 5?-phosphate, in a body fluid sample using tandem mass spectrometry coupled with liquid chromatography.
    Type: Application
    Filed: August 18, 2020
    Publication date: December 3, 2020
    Inventors: Qibo Jiang, Sum Chan, Richard E. Reitz
  • MASS SPECTROMETRY METHOD FOR MEASURING THIAMINE IN BODY FLUID
    Publication number: 20200370091
    Abstract: Provided are methods for determining the amount of total thiamine in a body fluid sample using liquid chromatography and mass spectrometry. Total thiamine is converted to free thiamine by treatment with an acid phosphatase prior to thiamine separation and quantification.
    Type: Application
    Filed: August 10, 2020
    Publication date: November 26, 2020
    Inventors: Sum Chan, Qibo Jiang, Richard E. Reitz
  • Mass spectrometry method for measuring thiamine in body fluid
    Patent number: 10738344
    Abstract: Provided are methods for determining the amount of total thiamine in a body fluid sample using liquid chromatography and mass spectrometry. Total thiamine is converted to free thiamine by treatment with an acid phosphatase prior to thiamine separation and quantification.
    Type: Grant
    Filed: July 16, 2018
    Date of Patent: August 11, 2020
    Assignee: Quest Diagnostics Investments Incorporated
    Inventors: Sum Chan, Qibo Jiang, Richard E. Reitz
  • DETECTION OF VITAMINS A AND E BY TANDEM MASS SPECTROMETRY
    Publication number: 20190170774
    Abstract: Methods are described for measuring the amount of one or more of vitamin A, ?-tocopherol, and the combination of ?-tocopherol and ?-tocopherol in a sample. More specifically, mass spectrometric methods are described for detecting and quantifying one or more of vitamin A, ?-tocopherol, and the combination of ?-tocopherol and ?-tocopherol in a sample.
    Type: Application
    Filed: February 8, 2019
    Publication date: June 6, 2019
    Applicant: Quest Diagnostics Investments Incorporated
    Inventors: Sum CHAN, Qibo JIANG
  • Detection of vitamins A and E by tandem mass spectrometry
    Patent number: 10215765
    Abstract: Methods are described for measuring the amount of one or more of vitamin A, ?-tocopherol, and the combination of ?-tocopherol and ?-tocopherol in a sample. More specifically, mass spectrometric methods are described for detecting and quantifying one or more of vitamin A, ?-tocopherol, and the combination of ?-tocopherol and ?-tocopherol in a sample.
    Type: Grant
    Filed: September 13, 2011
    Date of Patent: February 26, 2019
    Assignee: Quest Diagnostics Investments Incorporated
    Inventors: Sum Chan, Qibo Jiang
  • MASS SPECTROMETRY METHOD FOR MEASURING THIAMINE IN BODY FLUID
    Publication number: 20180340209
    Abstract: Provided are methods for determining the amount of total thiamine in a body fluid sample using liquid chromatography and mass spectrometry. Total thiamine is converted to free thiamine by treatment with an acid phosphatase prior to thiamine separation and quantification.
    Type: Application
    Filed: July 16, 2018
    Publication date: November 29, 2018
    Inventors: Sum Chan, Qibo Jiang, Richard E. Reitz
  • ANTIMICROBIAL FLUOROPOLYMER
    Publication number: 20180334548
    Abstract: Provided is a composition having excellent antimicrobial performance. The present invention relates to a composite material, comprising: a fluoropolymer; and an antimicrobial agent; wherein the fluoropolymer and the antimicrobial agent are compounded.
    Type: Application
    Filed: May 18, 2018
    Publication date: November 22, 2018
    Applicants: DAIKIN AMERICA, INC., DAIKIN INDUSTRIES, LTD.
    Inventors: Qibo JIANG, Arthur MARTIN, Keith SHIH