Patents by Inventor Tie Wei

Tie Wei 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: 11958863
    Abstract: The present disclosure includes compounds, kits, and assay procedures for use in determining the levels of certain types of drugs in samples that contain specific binding proteins for the drugs. The present disclosure includes analog compounds useful for displacing the drugs from their endogenous binding proteins, and kits including same, as well as methods that utilize these displacers as binding competitors in pharmaceutical assays.
    Type: Grant
    Filed: October 25, 2019
    Date of Patent: April 16, 2024
    Assignee: Siemens Healthcare Diagnostics Inc.
    Inventors: Tie Wei, Zhu Teng, Martin Drinan, Jie Li
  • Patent number: 11913965
    Abstract: Methods are disclosed for a sandwich assay for a small molecule having a molecular weight of about 500 to about 2,500. The method comprises the use of a first antibody that binds to the small molecule and a second antibody that binds to the small molecule at a portion of the small molecule other than a portion to which the first antibody binds. The second antibody is prepared from an immunogen that comprises a hapten that is not the small molecule or a derivative of the small molecule wherein the hapten comprises a moiety that is structurally similar to that of the second portion of the small molecule. The antibodies may be employed in sandwich assays for the small molecule.
    Type: Grant
    Filed: March 12, 2021
    Date of Patent: February 27, 2024
    Assignee: Siemens Healthcare Diagnostics Inc.
    Inventor: Tie Wei
  • Publication number: 20230152318
    Abstract: Reagents, kits, and microfluidics devices are disclosed for detecting the presence and/or concentration of antibodies directed to microorganisms in human biological samples. Also disclosed are methods of production and use of the reagents, kits, and microfluidics devices. Anti-human immunoglobulin antibodies are utilized to enhance the signal produced by the assay.
    Type: Application
    Filed: April 21, 2021
    Publication date: May 18, 2023
    Applicant: Siemens Healthcare Diagnostics Inc.
    Inventors: Tie Wei, Jie Li
  • Publication number: 20220387994
    Abstract: Methods of mitigating lipoprotein interference in in vitro diagnostic assays for target hydrophobic analytes are disclosed, as well as compositions, kits, and devices useful in said methods. A pretreatment reagent is utilized that includes at least one enzyme that digests lipoprotein.
    Type: Application
    Filed: May 12, 2022
    Publication date: December 8, 2022
    Applicant: Siemens Healthcare Diagnostics Inc.
    Inventors: Tie Wei, Jie Li, Yun Yue
  • Publication number: 20220229049
    Abstract: Reagents for use in sandwich immunoassays for haptens are disclosed, along with kits containing same. Also disclosed are diagnostic immunoassay methods that utilize these immunoassay reagents in a particle enhanced agglutination detection assay for detecting haptens/drugs in samples.
    Type: Application
    Filed: October 25, 2019
    Publication date: July 21, 2022
    Applicant: Siemens Healthcare Diagnostics Inc.
    Inventor: Tie Wei
  • Publication number: 20220221448
    Abstract: The present invention relates to methods and compositions to remove or reduce biotin interference from certain assays.
    Type: Application
    Filed: March 18, 2022
    Publication date: July 14, 2022
    Applicant: Siemens Healthcare Diagnostics Inc.
    Inventor: Tie Wei
  • Publication number: 20220196640
    Abstract: Methods of detecting aberrant results caused by delivery issues for a polyhapten reagent in the context of immunoassays are disclosed.
    Type: Application
    Filed: February 3, 2020
    Publication date: June 23, 2022
    Applicant: Siemens Healthcare Diagnostics Inc.
    Inventors: Amy Tyler, Tie Wei
  • Patent number: 11358143
    Abstract: Methods of mitigating lipoprotein interference in in vitro diagnostic assays for target hydrophobic analytes are disclosed, as well as compositions, kits, and devices useful in said methods. A pretreatment reagent is utilized that includes at least one enzyme that digests lipoprotein.
    Type: Grant
    Filed: January 15, 2020
    Date of Patent: June 14, 2022
    Assignee: Siemens Healthcare Diagnostics Inc.
    Inventors: Tie Wei, Jie Li, Yun Yue
  • Publication number: 20220163533
    Abstract: Kits containing a multiplexed chemiluminescent detection system and microfluidics devices and methods for detecting the presence and/or concentration of biotin and at least one target analyte in a sample are disclosed. The kits, microfluidics devices, and methods utilize singlet oxygen-activatable chemiluminescent compounds in combination with two or more fluorescent molecules that emit light at different wavelengths.
    Type: Application
    Filed: February 10, 2022
    Publication date: May 26, 2022
    Applicant: Siemens Healthcare Diagnostics Inc.
    Inventor: Tie Wei
  • Patent number: 11313855
    Abstract: The present invention relates to methods and compositions to remove or reduce biotin interference from certain assays.
    Type: Grant
    Filed: September 19, 2019
    Date of Patent: April 26, 2022
    Assignee: Siemens Healthcare Diagnostics Inc.
    Inventor: Tie Wei
  • Patent number: 11287429
    Abstract: Kits containing a multiplexed chemiluminescent detection system and microfluidics devices and methods for detecting the presence and/or concentration of biotin and at least one target analyte in a sample are disclosed. The kits, microfluidics devices, and methods utilize singlet oxygen-activatable chemiluminescent compounds in combination with two or more fluorescent molecules that emit light at different wavelengths.
    Type: Grant
    Filed: September 19, 2019
    Date of Patent: March 29, 2022
    Assignee: Siemens Healthcare Diagnostics Inc.
    Inventor: Tie Wei
  • Publication number: 20220040693
    Abstract: Methods of mitigating lipoprotein interference in in vitro diagnostic assays for target hydrophobic analytes are disclosed, as well as compositions, kits, and devices useful in said methods. A pretreatment reagent is utilized that includes at least one enzyme that digests lipoprotein.
    Type: Application
    Filed: January 15, 2020
    Publication date: February 10, 2022
    Applicant: Siemens Healthcare Diagnostics Inc.
    Inventors: Tie Wei, Jie Li, Yun Yue
  • Publication number: 20220024946
    Abstract: Compositions comprising binding competitors that can be used in assays for macrophilin-binding pharmaceuticals in samples are disclosed, as well as kits containing same and methods of use thereof.
    Type: Application
    Filed: October 25, 2019
    Publication date: January 27, 2022
    Applicant: Siemens Healthcare Diagnostics Inc.
    Inventors: Tie Wei, Zhu Teng, Martin Drinan, Jie Li
  • Publication number: 20210325378
    Abstract: The present invention relates to methods and compositions to remove or reduce biotin interference from certain assays.
    Type: Application
    Filed: September 19, 2019
    Publication date: October 21, 2021
    Applicant: Siemens Healthcare Diagnostics Inc.
    Inventor: Tie WEI
  • Publication number: 20210311031
    Abstract: The present invention relates to methods and compositions to remove or reduce biotin interference from certain assays.
    Type: Application
    Filed: September 19, 2019
    Publication date: October 7, 2021
    Applicant: Siemens Healthcare Diagnostics Inc.
    Inventors: Tie Wei, Zhu Teng, Izak Bahar
  • Publication number: 20210270849
    Abstract: Methods of detecting and flagging and/or suppressing aberrant results caused by incomplete dispersion of an immunoassay reagent used in a turbidimetric immunoassay are disclosed.
    Type: Application
    Filed: June 28, 2019
    Publication date: September 2, 2021
    Applicant: Siemens Healthcare Diagnostics Inc.
    Inventor: Tie Wei
  • Publication number: 20210247399
    Abstract: Kits containing a multiplexed chemiluminescent detection system and microfluidics devices and methods for detecting the presence and/or concentration of biotin and at least one target analyte in a sample are disclosed. The kits, microfluidics devices, and methods utilize singlet oxygen-activatable chemiluminescent compounds in combination with two or more fluorescent molecules that emit light at different wavelengths.
    Type: Application
    Filed: September 19, 2019
    Publication date: August 12, 2021
    Applicant: Siemens Healthcare Diagnostics Inc.
    Inventor: Tie Wei
  • Publication number: 20210247388
    Abstract: The present invention relates to methods and compositions to remove or reduce biotin interference from certain assays.
    Type: Application
    Filed: September 19, 2019
    Publication date: August 12, 2021
    Applicant: Siemens Healthcare Diagnostics Inc.
    Inventor: Tie Wei
  • Publication number: 20210199677
    Abstract: Methods are disclosed for a sandwich assay for a small molecule having a molecular weight of about 500 to about 2,500. The method comprises the use of a first antibody that binds to the small molecule and a second antibody that binds to the small molecule at a portion of the small molecule other than a portion to which the first antibody binds. The second antibody is prepared from an immunogen that comprises a hapten that is not the small molecule or a derivative of the small molecule wherein the hapten comprises a moiety that is structurally similar to that of the second portion of the small molecule. The antibodies may be employed in sandwich assays for the small molecule.
    Type: Application
    Filed: March 12, 2021
    Publication date: July 1, 2021
    Applicant: Siemens Healthcare Diagnostics Inc.
    Inventor: Tie Wei
  • Publication number: 20180306828
    Abstract: Methods are disclosed for a sandwich assay for a small molecule having a molecular weight of about 500 to about 2,500. The method comprises the use of a first antibody that binds to the small molecule and a second antibody that binds to the small molecule at a portion of the small molecule other than a portion to which the first antibody binds. The second antibody is prepared from an immunogen that comprises a hapten that is not the small molecule or a derivative of the small molecule wherein the hapten comprises a moiety that is structurally similar to that of the second portion of the small molecule. The antibodies may be employed in sandwich assays for the small molecule.
    Type: Application
    Filed: October 12, 2016
    Publication date: October 25, 2018
    Applicant: Siemens Healthcare Diagnostics Inc.
    Inventor: Tie Wei