Patents by Inventor Paula Hong

Paula Hong 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).

  • Methods for determining relative response factors for impurity analysis using liquid chromatography with absorbance and evaporative light scattering detection
    Patent number: 10422775
    Abstract: Methods and systems for determining relative response factors for liquid chromatography using both molar concentration-based detection and mass concentration-based detection are described herein. A method includes determining a relative response factor for a compound based on the ratio of a molar-based peak area for the compound to the logarithm of the mass-based peak area for the compound and based on the ratio of a molar-based peak area for a reference compound divided by the logarithm of the mass-based peak area for the reference compound.
    Type: Grant
    Filed: January 12, 2017
    Date of Patent: September 24, 2019
    Assignee: Waters Technologies Corporation
    Inventors: Paula Hong, Michael D. Jones
  • Selective methods for the separation of ondansetron and related impurities
    Patent number: 10239866
    Abstract: The present disclosure generally relates to methods for separating ondansetron and related impurities using CO2-based chromatography.
    Type: Grant
    Filed: January 12, 2017
    Date of Patent: March 26, 2019
    Assignee: Waters Technologies Corporation
    Inventors: Paula Hong, Jennifer Simeone
  • METHODS FOR DETERMINING RELATIVE RESPONSE FACTORS FOR IMPURITY ANALYSIS USING LIQUID CHROMATOGRAPHY WITH ABSORBANCE AND EVAPORATIVE LIGHT SCATTERING DETECTION
    Publication number: 20170199166
    Abstract: Methods and systems for determining relative response factors for liquid chromatography using both molar concentration-based detection and mass concentration-based detection are described herein. A method includes determining a relative response factor for a compound based on the ratio of a molar-based peak area for the compound to the logarithm of the mass-based peak area for the compound and based on the ratio of a molar-based peak area for a reference compound divided by the logarithm of the mass-based peak area for the reference compound.
    Type: Application
    Filed: January 12, 2017
    Publication date: July 13, 2017
    Applicants: Waters Technologies Corporation, Waters Technologies Corporation
    Inventors: Paula Hong, Michael D. Jones
  • SELECTIVE METHODS FOR THE SEPARATION OF ONDANSETRON AND RELATED IMPURITIES
    Publication number: 20170197942
    Abstract: The present disclosure generally relates to methods for separating ondansetron and related impurities using CO2-based chromatography.
    Type: Application
    Filed: January 12, 2017
    Publication date: July 13, 2017
    Inventors: Paula Hong, Jennifer Simeone