Patents Assigned to Quest Diagnostics Investment Incoporated
  • 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
  • Apolipoprotein E isotype detection by mass spectrometry
    Patent number: 11361953
    Abstract: Provided are methods for determining the apolipoprotein E (ApoE) phenotype in a sample by mass spectrometry; wherein the ApoE allele(s) present in the sample is determined from the identity of the ions detected by mass spectrometry. In another aspect, provided herein are methods for diagnosis or prognosis of Alzheimer's disease or dementia.
    Type: Grant
    Filed: July 31, 2018
    Date of Patent: June 14, 2022
    Assignee: Quest Diagnostics Investments Incoporated
    Inventors: Darren Weber, Nigel Clarke
  • Mass spectrometric determination of eicosapentaenoic acid and docosahexaenoic acid
    Patent number: 11181537
    Abstract: The invention relates to the detection of docosahexaenoic acid (DHA) and eicosapentaenoic acid (EPA). In a particular aspect, the invention relates to methods for detecting DHA and EPA by mass spectrometry and kits for carrying out such methods.
    Type: Grant
    Filed: January 13, 2020
    Date of Patent: November 23, 2021
    Assignee: Quest Diagnostics Investments Incoporated
    Inventors: Scott M. Goldman, Julie A. Neidich
  • Mass spectrometric determination of fatty acids
    Patent number: 11017991
    Abstract: The invention relates to the detection of fatty acids. In a particular aspect, the invention relates to methods for detecting very long chain fatty acids and branched chain fatty acids by mass spectrometry.
    Type: Grant
    Filed: March 20, 2019
    Date of Patent: May 25, 2021
    Assignee: Quest Diagnostics Investments Incoporated
    Inventor: Scott Goldman
  • METHODS FOR DETECTING VITAMIN D METABOLITES BY MASS SPECTROMETRY
    Publication number: 20140162371
    Abstract: Provided are methods of detecting the presence or amount of a vitamin D metabolite in a sample using mass spectrometry. The methods generally comprise ionizing a vitamin D metabolite in a sample and detecting the amount of the ion to determine the presence or amount of the vitamin D metabolite in the sample. Also provided are methods to detect the presence or amount of two or more vitamin D metabolites in a single assay.
    Type: Application
    Filed: February 14, 2014
    Publication date: June 12, 2014
    Applicant: Quest Diagnostics Investments Incoporated
    Inventors: Nigel J. Clarke, Brett Holmquist, Gloria Kwang-Ja Lee, Richard E. Reitz