Patents by Inventor Qin Mei

Qin Mei 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).

  • Publication number: 20230203159
    Abstract: The present disclosure provides isolated monoclonal anti-CD3epsilon antibodies or antigen-binding fragments thereof comprising one or more heavy chain CDR sequences selected from the group consisting of: SEQ ID NOs: 1, 3, 5, 7, 9, 11, 13, 15, 17, 19, 21, 23, 25, 27, 29, 31, 33, 35, 37, 39, 41, 43, 45, and 47, and/or one or more kappa light chain CDR sequences selected from the group consisting of: SEQ ID NOs: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32, 34, 36, 38, 40, 42, 44, 46 and 48, isolated polynucleotides encoding the same, pharmaceutical compositions comprising the same, and the use thereof.
    Type: Application
    Filed: August 2, 2022
    Publication date: June 29, 2023
    Inventors: Jing LI, Qin MEI
  • Publication number: 20230192850
    Abstract: The present disclosure provides isolated monoclonal anti-CD3epsilon antibodies or antigen-binding fragments thereof comprising one or more heavy chain CDR sequences selected from the group consisting of: SEQ ID NOs: 1, 3, 5, 7, 9, 11, 13, 15, 17, 19, 21, 23, 25, 27, 29, 31, 33, 35, 37, 39, 41, 43, 45, and 47, and/or one or more kappa light chain CDR sequences selected from the group consisting of: SEQ ID NOs: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32, 34, 36, 38, 40, 42, 44, 46 and 48, isolated polynucleotides encoding the same, pharmaceutical compositions comprising the same, and the use thereof.
    Type: Application
    Filed: August 2, 2022
    Publication date: June 22, 2023
    Inventors: Jing LI, Qin MEI
  • Publication number: 20230008090
    Abstract: Provided are bispecific antibodies against CD3 and EGFR, the nucleic acid molecules encoding the antibodies, expression vectors and host cells used for the expression of the antibodies. The antibodies provide a potent agent for the treatment of CD3-related and/or EGFR-related diseases via modulating immune functions.
    Type: Application
    Filed: November 27, 2020
    Publication date: January 12, 2023
    Inventors: Qin MEI, Zhuozhi WANG, Jing LI, Jianqing XU
  • Publication number: 20220403023
    Abstract: Provided are anti-CD47 antibodies, the nucleic acid molecules encoding the anti-CD47 antibodies, expression vectors and host cells used for the expression of anti-CD47 antibodies. Provided are methods for validating the function of antibodies. The antibodies provide a potent agent for the treatment of cancers via modulating immune functions.
    Type: Application
    Filed: October 23, 2020
    Publication date: December 22, 2022
    Inventors: Qin MEI, Fagen HU, Jing LI, Jiaxiang SHAO, Yuhong SHEN
  • Patent number: 11440962
    Abstract: The present disclosure provides isolated monoclonal anti-CD3epsilon antibodies or antigen-binding fragments thereof comprising one or more heavy chain CDR sequences selected from the group consisting of: SEQ ID NOs: 1, 3, 5, 7, 9, 11, 13, 15, 17, 19, 21, 23, 25, 27, 29, 31, 33, 35, 37, 39, 41, 43, 45, and 47, and/or one or more kappa light chain CDR sequences selected from the group consisting of: SEQ ID NOs: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32, 34, 36, 38, 40, 42, 44, 46 and 48, isolated polynucleotides encoding the same, pharmaceutical compositions comprising the same, and the use thereof.
    Type: Grant
    Filed: September 20, 2018
    Date of Patent: September 13, 2022
    Assignee: WUXI BIOLOGICS IRELAND LIMITED
    Inventors: Jing Li, Qin Mei
  • Patent number: 11365254
    Abstract: A bispecific anti-CD3×CD19 polypeptide complex that contains a first antigen-binding moiety of the polypeptide complex and a second antigen-binding moiety, methods of producing the bispecific anti-CD3×CD19 polypeptide complex, methods of treating disease or disorder using the bispecific anti-CD3×CD19 polypeptide complex, polynucleotides encoding the bispecific anti-CD3×CD19 polypeptide complex, vectors and host cells containing said polynucleotides, and compositions and pharmaceutical compositions comprising the bispecific anti-CD3×CD19 polypeptide complex are provided.
    Type: Grant
    Filed: September 20, 2018
    Date of Patent: June 21, 2022
    Assignee: WUXI BIOLOGICS IRELAND LIMITED
    Inventors: Jieying Liu, Jianqing Xu, Zhuozhi Wang, Qin Mei, Jing Li
  • Publication number: 20220162312
    Abstract: The present disclosure provides a bispecific anti-CD3×CD20 polypeptide complex that contains a first antigen-binding moiety of the polypeptide complex and a second antigen-binding moiety, methods of producing the bispecific anti-CD3×CD20 polypeptide complex, methods of treating disease or disorder using the bispecific anti-CD3×CD20 polypeptide complex, polynucleotides encoding the bispecific anti-CD3×CD20 polypeptide complex, vectors and host cells containing said polynucleotides, and compositions and pharmaceutical compositions comprising the bispecific anti-CD3×CD20 polypeptide complex.
    Type: Application
    Filed: January 22, 2020
    Publication date: May 26, 2022
    Inventors: Yunying CHEN, Qin MEI, Jianqing XU, Zhuozhi WANG, Jing LI
  • Publication number: 20210380710
    Abstract: Provided are a bispecific antibody comprising a first antigen-binding site that specifically binds to CD3 and a second antigen-binding site that specifically binds to an antigen different from CD3. It also provides the method for producing the bispecific antibody, and the use thereof.
    Type: Application
    Filed: May 29, 2019
    Publication date: December 9, 2021
    Inventors: Yunying CHEN, Qin MEI, Zhuozhi WANG, Jing LI
  • Publication number: 20200299384
    Abstract: The present disclosure provides isolated monoclonal anti-CD3epsilon antibodies or antigen-binding fragments thereof comprising one or more heavy chain CDR sequences selected from the group consisting of: SEQ ID NOs: 1, 3, 5, 7, 9, 11, 13, 15, 17, 19, 21, 23, 25, 27, 29, 31, 33, 35, 37, 39, 41, 43, 45, and 47, and/or one or more kappa light chain CDR sequences selected from the group consisting of: SEQ ID NOs: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32, 34, 36, 38, 40, 42, 44, 46 and 48, isolated polynucleotides encoding the same, pharmaceutical compositions comprising the same, and the use thereof.
    Type: Application
    Filed: September 20, 2018
    Publication date: September 24, 2020
    Inventors: Jing LI, Qin MEI
  • Publication number: 20200283523
    Abstract: A bispecific anti-CD3×CD19 polypeptide complex that contains a first antigen-binding moiety of the polypeptide complex and a second antigen-binding moiety, methods of producing the bispecific anti-CD3×CD19 polypeptide complex, methods of treating disease or disorder using the bispecific anti-CD3×CD19 polypeptide complex, polynucleotides encoding the bispecific anti-CD3×CD19 polypeptide complex, vectors and host cells containing said polynucleotides, and compositions and pharmaceutical compositions comprising the bispecific anti-CD3×CD19 polypeptide complex are provided.
    Type: Application
    Filed: September 20, 2018
    Publication date: September 10, 2020
    Inventors: Jieying LIU, Jianqing XU, Zhuozhi WANG, Qin MEI, Jing LI
  • Publication number: 20150293679
    Abstract: A method and device for controlling switching of a virtual navigation bar, wherein the method includes: a terminal device receiving a command for displaying or hiding a virtual navigation bar from a user; after receiving the command for displaying hiding a virtual navigation bar from the user, the terminal device determining display objects of a display content in a window, re-rendering and refreshing the display content in the current window, wherein, upon receiving the command for displaying a virtual navigation bar from the user, the display objects of the display content in the window contain a display object of the virtual navigation bar; and upon receiving the command for hiding a virtual navigation bar from the user, the display objects of the display content in the window do not contain the display object of the virtual navigation bar.
    Type: Application
    Filed: June 13, 2013
    Publication date: October 15, 2015
    Inventors: Bingxin Xiang, Qin Mei, Hongwei Zhang, Chong Wang
  • Patent number: 7015008
    Abstract: The present invention features antibodies referred to herein as “MAb50-4” and “MAb184-10”, and polypeptides that compete with MAb50-4 and MAb184-10 for binding to CYP2D6. MAb50-4 can be produced by ATCC No. PTA-3489, while MAb184-10 can be produced by ATCC No. PTA-1999.
    Type: Grant
    Filed: September 25, 2001
    Date of Patent: March 21, 2006
    Assignee: Merck & Co., Inc.
    Inventors: Magang Shou, Qin Mei
  • Publication number: 20040043409
    Abstract: Particularly sensitive techniques for the detection of P. carinii in clinical samples are disclosed. These techniques relate to the PCR amplification and/or detection of human-P. carinii major surface glycoprotein (MSG) gene sequences. Also disclosed are seven novel genes encoding human-P. carinii MSG, and the proteins encoded for by these genes. These genes provide proof that human-P. carinii MSG is encoded for by a highly conserved gene family, and that the corresponding proteins have a very highly conserved region of about 100 amino acids near their C-terminal end. This highly conserved carboxy-terminal region has a significantly different sequence than that found in rat-derived MSG.
    Type: Application
    Filed: September 2, 2003
    Publication date: March 4, 2004
    Applicant: The Government of the USA represented by Secretary of the Department of Health & Human Services
    Inventors: Joseph A. Kovacs, Shengning Huang, Henry Masur, Steven H. Fischer, Vee J. Gill, Qin Mei
  • Publication number: 20040023326
    Abstract: The present invention features antibodies referred to herein as “MAb50-4” and “MAb184-10”, and polypeptides that compete with MAb50-4 and MAb184-10 for binding to CYP2D6. MAb50-4 can be produced by ATCC No. PTA-3489, while MAb184-10 can be produced by ATCC No. PTA-1999.
    Type: Application
    Filed: March 26, 2003
    Publication date: February 5, 2004
    Inventors: Magang Shou, Qin Mei
  • Patent number: 6664053
    Abstract: Particularly sensitive techniques for the detection of P. carinii in clinical samples are disclosed. These techniques relate to the PCR amplification and/or detection of human-P. carinii major surface glycoprotein (MSG) gene sequences. Also disclosed are seven novel genes encoding human-P. carinii MSG, and the proteins encoded for by these genes. These genes provide proof that human-P. carinii MSG is encoded for by a highly conserved gene family, and that the conesponding proteins have a very highly conserved region of about 100 amino acids near their C-terminal end. This highly conserved carboxy-terminal region has a significantly different sequence than that found in rat-derived MSG.
    Type: Grant
    Filed: February 9, 2001
    Date of Patent: December 16, 2003
    Assignee: The United States of America as represented by the Department of Health and Human Services
    Inventors: Joseph A. Kovacs, Shengning Huang, Henry Masur, Steven H. Fischer, Vee J. Gill, Qin Mei