Patents by Inventor Vincent H. Hsieh

Vincent H. Hsieh 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).

  • Patent number: 11408803
    Abstract: One or more homogenizing elements are employed in a flow through, multi-detector optical measurement system. The homogenizing elements correct for problems common to multi-detector flow-through systems such as peak tailing and non-uniform sample profile within the measurement cell. The homogenizing elements include coiled inlet tubing, a flow distributor near the inlet of the cell, and a flow distributor at the outlet of the cell. This homogenization of the sample mimics plug flow within the measurement cell and enables each detector to view the same sample composition in each individual corresponding viewed sample volume. This system is particularly beneficial when performing multiangle light scattering (MALS) measurements of narrow chromatographic peaks such as those produced by ultra-high pressure liquid chromatography (UHPLC).
    Type: Grant
    Filed: February 2, 2021
    Date of Patent: August 9, 2022
    Assignee: WYATT TECHNOLOGY CORPORATION
    Inventors: Philip J. Wyatt, Vincent H. Hsieh, Mario Yasa, Barbara R. Maurer, David Cannell, Steven P. Trainoff
  • Publication number: 20210172841
    Abstract: One or more homogenizing elements are employed in a flow through, multi-detector optical measurement system. The homogenizing elements correct for problems common to multi-detector flow-through systems such as peak tailing and non-uniform sample profile within the measurement cell. The homogenizing elements include coiled inlet tubing, a flow distributor near the inlet of the cell, and a flow distributor at the outlet of the cell. This homogenization of the sample mimics plug flow within the measurement cell and enables each detector to view the same sample composition in each individual corresponding viewed sample volume. This system is particularly beneficial when performing multiangle light scattering (MALS) measurements of narrow chromatographic peaks such as those produced by ultra-high pressure liquid chromatography (UHPLC).
    Type: Application
    Filed: February 2, 2021
    Publication date: June 10, 2021
    Applicant: Wyatt Technology Corporation
    Inventors: Philip J. Wyatt, Vincent H. Hsieh, Mario Yasa, Barbara R. Maurer, David Cannell, Steven P. Trainoff
  • Patent number: 10908054
    Abstract: One or more homogenizing elements are employed in a flow through, multi-detector optical measurement system. The homogenizing elements correct for problems common to multi-detector flow-through systems such as peak tailing and non-uniform sample profile within the measurement cell. The homogenizing elements include coiled inlet tubing, a flow distributor near the inlet of the cell, and a flow distributor at the outlet of the cell. This homogenization of the sample mimics plug flow within the measurement cell and enables each detector to view the same sample composition in each individual corresponding viewed sample volume. This system is particularly beneficial when performing multiangle light scattering (MALS) measurements of narrow chromatographic peaks such as those produced by ultra-high pressure liquid chromatography (UHPLC).
    Type: Grant
    Filed: September 10, 2019
    Date of Patent: February 2, 2021
    Assignee: WYATT TECHNOLOGY CORPORATION
    Inventors: Philip J. Wyatt, Vincent H. Hsieh, Mario Yasa, Barbara R. Maurer, David Cannell, Steven P. Trainoff
  • Publication number: 20200003663
    Abstract: One or more homogenizing elements are employed in a flow through, multi-detector optical measurement system. The homogenizing elements correct for problems common to multi-detector flow-through systems such as peak tailing and non-uniform sample profile within the measurement cell. The homogenizing elements include coiled inlet tubing, a flow distributor near the inlet of the cell, and a flow distributor at the outlet of the cell. This homogenization of the sample mimics plug flow within the measurement cell and enables each detector to view the same sample composition in each individual corresponding viewed sample volume. This system is particularly beneficial when performing multiangle light scattering (MALS) measurements of narrow chromatographic peaks such as those produced by ultra-high pressure liquid chromatography (UHPLC).
    Type: Application
    Filed: September 10, 2019
    Publication date: January 2, 2020
    Applicant: Wyatt Technology Corporation
    Inventors: Philip J. Wyatt, Vincent H. Hsieh, Mario Yasa, Barbara R. Maurer, David Cannell, Steven P. Trainoff
  • Patent number: 10408716
    Abstract: One or more homogenizing elements are employed in a flow through, multi-detector optical measurement system. The homogenizing elements correct for problems common to multi-detector flow-through systems such as peak tailing and non-uniform sample profile within the measurement cell. The homogenizing elements include coiled inlet tubing, a flow distributor near the inlet of the cell, and a flow distributor at the outlet of the cell. This homogenization of the sample mimics plug flow within the measurement cell and enables each detector to view the same sample composition in each individual corresponding viewed sample volume. This system is particularly beneficial when performing multiangle light scattering (MALS) measurements of narrow chromatographic peaks such as those produced by ultra-high pressure liquid chromatography (UHPLC).
    Type: Grant
    Filed: September 21, 2016
    Date of Patent: September 10, 2019
    Assignee: WYATT TECHNOLOGY CORPORATION
    Inventors: Philip J. Wyatt, Vincent H. Hsieh, Mario Yasa, Barbara R. Maurer, David Cannell, Steven P. Trainoff
  • Publication number: 20180259430
    Abstract: One or more homogenizing elements are employed in a flow through, multi-detector optical measurement system. The homogenizing elements correct for problems common to multi-detector flow-through systems such as peak tailing and non-uniform sample profile within the measurement cell. The homogenizing elements include coiled inlet tubing, a flow distributor near the inlet of the cell, and a flow distributor at the outlet of the cell. This homogenization of the sample mimics plug flow within the measurement cell and enables each detector to view the same sample composition in each individual corresponding viewed sample volume. This system is particularly beneficial when performing multiangle light scattering (MALS) measurements of narrow chromatographic peaks such as those produced by ultra-high pressure liquid chromatography (UHPLC).
    Type: Application
    Filed: September 21, 2016
    Publication date: September 13, 2018
    Applicant: Wyatt Technology Corporation
    Inventors: Philip J. Wyatt, Vincent H. Hsieh, Mario Yasa, Barbara R. Maurer, David Cannell, Steven P. Trainoff