Patents by Inventor Qingping Jiang

Qingping 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).

  • Patent number: 12275708
    Abstract: Hydrophilic, high quantum yield, chemiluminescent acridinium compounds with increased light output, improved stability, fast light emission and decreased non specific binding are disclosed. The chemiluminescent acridinium esters possess hydrophilic, branched, electron-donating functional groups at the C2 and/or C7 positions of the acridinium nucleus.
    Type: Grant
    Filed: February 15, 2024
    Date of Patent: April 15, 2025
    Assignee: Siemens Healthcare Diagnostics Inc.
    Inventors: Anand Natrajan, David Sharpe, Qingping Jiang, David Wen
  • Publication number: 20240254088
    Abstract: Hydrophilic, high quantum yield, chemiluminescent acridinium compounds with increased light output, improved stability, fast light emission and decreased non specific binding are disclosed. The chemiluminescent acridinium esters possess hydrophilic, branched, electron-donating functional groups at the C2 and/or C7 positions of the acridinium nucleus.
    Type: Application
    Filed: February 15, 2024
    Publication date: August 1, 2024
    Applicant: Siemens Healthcare Diagnostics Inc.
    Inventors: Anand Natrajan, David Sharpe, Qingping Jiang, David Wen
  • Publication number: 20240150394
    Abstract: Methods of removing high molecular weight species, in particular aggregates, from antibody drug conjugate preparations, by contacting preparations of the antibody drug conjugate reaction mixture with a hydroxyapatite resin and selectively eluting the ADC from the resin using a gradient comprising sodium phosphate.
    Type: Application
    Filed: May 23, 2023
    Publication date: May 9, 2024
    Applicant: PFIZER INC.
    Inventors: Durgesh V. Nadkarni, Jeffry R. Borgmeyer, He Meng, Qingping Jiang
  • Patent number: 11932603
    Abstract: Hydrophilic, high quantum yield, chemiluminescent acridinium compounds with increased light output, improved stability, fast light emission and decreased non specific binding are disclosed. The chemiluminescent acridinium esters possess hydrophilic, branched, electron-donating functional groups at the C2 and/or C7 positions of the acridinium nucleus.
    Type: Grant
    Filed: April 7, 2022
    Date of Patent: March 19, 2024
    Assignee: Siemens Healthcare Diagnostics Inc.
    Inventors: Anand Natrajan, David Sharpe, Qingping Jiang, David Wen
  • Publication number: 20240010841
    Abstract: Labels that include dibromopyridazinedione attached to signal molecules are disclosed, along with methods of producing and using same. Also disclosed are conjugates of the label attached to an analyte-specific binder, as well as methods of producing and using same. Kits containing the labels and/or conjugates are also disclosed, along with microfluidics devices containing same.
    Type: Application
    Filed: November 10, 2021
    Publication date: January 11, 2024
    Applicant: Siemens Healthcare Diagnostics Inc.
    Inventors: Yali Yang, David Wen, Bogdan Draghici, Yi Feng Zheng, Raphael Bartz, Qingping Jiang, Roland Janzen, Joshua Whalen, Ling Ngo, William Bedzyk
  • Patent number: 11661438
    Abstract: Methods of removing high molecular weight species, in particular aggregates, from antibody drug conjugate preparations, by contacting preparations of the antibody drug conjugate reaction mixture with a hydroxyapatite resin and selectively eluting the ADC from the resin using a gradient comprising sodium phosphate.
    Type: Grant
    Filed: December 7, 2016
    Date of Patent: May 30, 2023
    Assignee: Pfizer, Inc.
    Inventors: Durgesh V. Nadkarni, Jeffry R. Borgmeyer, He Meng, Qingping Jiang
  • Publication number: 20220227711
    Abstract: Hydrophilic, high quantum yield, chemiluminescent acridinium compounds with increased light output, improved stability, fast light emission and decreased non specific binding are disclosed. The chemiluminescent acridinium esters possess hydrophilic, branched, electron-donating functional groups at the C2 and/or C7 positions of the acridinium nucleus.
    Type: Application
    Filed: April 7, 2022
    Publication date: July 21, 2022
    Applicant: Siemens Healthcare Diagnostics Inc.
    Inventors: Anand Natrajan, David Sharpe, Qingping Jiang, David Wen
  • Patent number: 11332445
    Abstract: Hydrophilic, high quantum yield, chemiluminescent acridinium compounds with increased light output, improved stability, fast light emission and decreased non specific binding are disclosed. The chemiluminescent acridinium esters possess hydrophilic, branched, electron-donating functional groups at the C2 and/or C7 positions of the acridinium nucleus.
    Type: Grant
    Filed: February 26, 2020
    Date of Patent: May 17, 2022
    Assignee: Siemens Healthcare Diagnostics Inc.
    Inventors: Anand Natrajan, David Sharpe, Qingping Jiang, David Wen
  • Patent number: 11093782
    Abstract: A method for matching a license plate number, comprises: obtaining a first license plate number to be matched; obtaining a license plate number library, wherein the license plate number library includes at least one second license plate number; calculating, based on a visual similarity of characters, a difficult degree in editing a character string required to converting between each second license plate number and the first license plate number; and determining, according to the difficult degree in editing a character string, at least one second license plate number matched with the first license plate number.
    Type: Grant
    Filed: September 27, 2019
    Date of Patent: August 17, 2021
    Assignee: Hangzhou Hikvision Digital Technology Co., Ltd.
    Inventors: Longsheng Hu, Zhiming Shen, Qingping Jiang
  • Patent number: 10710962
    Abstract: Zwitterion-containing compounds for the modification of hydrophobic molecules to improve their solubility and/or to lower their non-specific binding as provided. The zwitterion-containing compounds may be suitable for modification of detectable labels such as biotin and fluorescein to improve their solubility. The zwitterion-containing compounds may also be useful for the preparation of conjugates of proteins, peptides and other macromolecules or for crosslinking molecules and/or macromolecules.
    Type: Grant
    Filed: May 28, 2016
    Date of Patent: July 14, 2020
    Assignee: Siemens Healthcare Diagnostics Inc.
    Inventors: Anand Natrajan, David Sharpe, David Wen, Qingping Jiang
  • Publication number: 20200190037
    Abstract: Hydrophilic, high quantum yield, chemiluminescent acridinium compounds with increased light output, improved stability, fast light emission and decreased non specific binding are disclosed. The chemiluminescent acridinium esters possess hydrophilic, branched, electron-donating functional groups at the C2 and/or C7 positions of the acridinium nucleus.
    Type: Application
    Filed: February 26, 2020
    Publication date: June 18, 2020
    Applicant: Siemens Healthcare Diagnostics Inc.
    Inventors: Anand Natrajan, David Sharpe, Qingping Jiang, David Wen
  • Publication number: 20200026946
    Abstract: A method for matching a license plate number, comprises: obtaining a first license plate number to be matched; obtaining a license plate number library, wherein the license plate number library includes at least one second license plate number; calculating, based on a visual similarity of characters, a difficult degree in editing a character string required to converting between each second license plate number and the first license plate number; and determining, according to the difficult degree in editing a character string, at least one second license plate number matched with the first license plate number.
    Type: Application
    Filed: September 27, 2019
    Publication date: January 23, 2020
    Inventors: Longsheng HU, Zhiming SHEN, Qingping JIANG
  • Publication number: 20190367556
    Abstract: Methods of removing high molecular weight species, in particular aggregates, from antibody drug conjugate preparations, by contacting preparations of the antibody drug conjugate reaction mixture with a hydroxyapatite resin and selectively eluting the ADC from the resin using a gradient comprising sodium phosphate.
    Type: Application
    Filed: December 7, 2016
    Publication date: December 5, 2019
    Applicant: PFIZER INC.
    Inventors: Durgesh V. Nadkarni, Jeffry R. Borgmeyer, He Meng, Qingping Jiang
  • Publication number: 20170320830
    Abstract: Hydrophilic, high quantum yield, chemiluminescent acridinium compounds with increased light output, improved stability, fast light emission and decreased non specific binding are disclosed. The chemiluminescent acridinium esters possess hydrophilic, branched, electron-donating functional groups at the C2 and/or C7 positions of the acridinium nucleus.
    Type: Application
    Filed: July 4, 2014
    Publication date: November 9, 2017
    Inventors: Anand Natrajan, David Sharpe, Qingping Jiang, David Wen
  • Patent number: 9575062
    Abstract: Hydrophilic, chemiluminescent acridinium compounds containing zwitterions are disclosed. These acridinium compounds, when used as chemiluminescent labels in immunochemistry assays and the like, exhibit decreased non-specific binding to solid phases and provide increased assay sensitivity.
    Type: Grant
    Filed: June 11, 2014
    Date of Patent: February 21, 2017
    Assignee: SIEMENS HEALTHCARE DIAGNOSTICS INC.
    Inventors: Anand Natrajan, David Sharpe, Qingping Jiang
  • Patent number: 9487480
    Abstract: Zwitterion-containing compounds for the modification of hydrophobic molecules to improve their solubility and/or to lower their non-specific binding as provided. The zwitterion-containing compounds may be suitable for modification of detectable labels such as biotin and fluorescein to improve their solubility. The zwitterion-containing compounds may also be useful for the preparation of conjugates of proteins, peptides and other macromolecules or for crosslinking molecules and/or macromolecules.
    Type: Grant
    Filed: May 18, 2011
    Date of Patent: November 8, 2016
    Assignee: Siemens Healthcare Diagnostics Inc.
    Inventors: Anand Natrajan, David Sharpe, David Wen, Qingping Jiang
  • Publication number: 20160274094
    Abstract: Zwitterion-containing compounds for the modification of hydrophobic molecules to improve their solubility and/or to lower their non-specific binding as provided. The zwitterion-containing compounds may be suitable for modification of detectable labels such as biotin and fluorescein to improve their solubility. The zwitterion-containing compounds may also be useful for the preparation of conjugates of proteins, peptides and other macromolecules or for crosslinking molecules and/or macromolecules.
    Type: Application
    Filed: May 28, 2016
    Publication date: September 22, 2016
    Applicant: Siemens Healthcare Diagnostics Inc.
    Inventors: Anand Natrajan, David Sharpe, David Wen, Qingping Jiang
  • Patent number: 9353056
    Abstract: Zwitterion-containing compounds for the modification of hydrophobic molecules to improve their solubility and/or to lower their non-specific binding as provided. The zwitterion-containing compounds may be suitable for modification of detectable labels such as biotin and fluorescein to improve their solubility. The zwitterion-containing compounds may also be useful for the preparation of conjugates of proteins, peptides and other macromolecules or for crosslinking molecules and/or macromolecules.
    Type: Grant
    Filed: May 18, 2011
    Date of Patent: May 31, 2016
    Assignee: Siemens Healthcare Diagnostics Inc.
    Inventors: Anand Natrajan, David Sharpe, David Wen, Qingping Jiang
  • Publication number: 20140295575
    Abstract: Hydrophilic, chemiluminescent acridinium compounds containing zwitterions are disclosed. These acridinium compounds, when used as chemiluminescent labels in immunochemistry assays and the like, exhibit decreased non-specific binding to solid phases and provide increased assay sensitivity.
    Type: Application
    Filed: June 11, 2014
    Publication date: October 2, 2014
    Applicant: SIEMENS HEALTHCARE DIAGNOSTICS INC.
    Inventors: Anand Natrajan, David Sharpe, Qingping Jiang
  • Patent number: 8778624
    Abstract: Hydrophilic, chemiluminescent acridinium compounds containing zwitterions are disclosed. These acridinium compounds, when used as chemiluminescent labels in immunochemistry assays and the like, exhibit decreased non-specific binding to solid phases and provide increased assay sensitivity.
    Type: Grant
    Filed: November 12, 2010
    Date of Patent: July 15, 2014
    Assignee: Siemens Healthcare Diagnostics Inc.
    Inventors: Anand Natrajan, David Sharpe, Qingping Jiang