Patents by Inventor Zhengcheng LI

Zhengcheng LI 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: 11525009
    Abstract: Provided in the present invention is a bispecific antibody which comprises an anti-MUC1 VHH antibody fragment and an anti-CD16 VHH antibody fragment. The antibody fragment used in the present invention is a variable region sequence derived from a heavy chain camelid antibody and has a high binding affinity to the antigen. Antibody fragments recognizing MUC1 and CD16 are constructed in the same antibody molecule by the invention, so that the antibody molecule can specifically bind to MUC1 and CD16 molecules to promote the killing effect of NK cells on MUC1-positive expression cells and has an inhibiting effect on the growth of MUC1-positive tumors. Also provided is a conjugate of the bispecific antibodies, a related pharmaceutical composition and use.
    Type: Grant
    Filed: June 21, 2017
    Date of Patent: December 13, 2022
    Assignee: BENHEALTH BIOPHARMACEUTIC (SHENZHEN) CO. LTD.
    Inventors: Haoyang Yu, Zhong Wang, Zhengcheng Li
  • Publication number: 20220017935
    Abstract: The invention belongs to the field of bioengineering and food technology, and discloses a method for enzymatic resolution of chiral substances, including the following steps: (1) preparing an enzyme solution with a lipase concentration of 1-3000 U/mL, and adding a soluble salt, a hydrophilic solvent and a hydrophobic solvent to the enzyme solution to form a three-liquid phase system; the hydrophobic solvent contains esters or amide compounds composed of racemic chiral compounds; (2) subjecting the three-liquid phase system to enzyme-catalyzed reaction under stirring condition; after the reaction is completed, standing or centrifuging the three-liquid phase system to divide it into three layers, which are a upper liquid layer, a middle liquid layer and a lower liquid layer from top to bottom.
    Type: Application
    Filed: October 25, 2019
    Publication date: January 20, 2022
    Inventors: Zhigang Li, Jinfen Su, Bo Yang, Yonghua Wang, Zhengcheng Li, Huayong Chen
  • Publication number: 20210395387
    Abstract: The present invention relates to a multi-specific antibody conjugate (such as, a bispecific antibody conjugate), and a related composition, therapeutic method and use thereof. The antibody conjugate comprises a multispecific antibody, such as a bispecific antibody, conjugated to a nanomaterial. The antibody conjugate can be used to modulate an immune response, treat or prevent a disease or condition (e.g., a cancer, autoimmune disease, pathogen infection or inflammatory disease), etc.
    Type: Application
    Filed: January 23, 2018
    Publication date: December 23, 2021
    Inventors: Haoyang YU, Zhong WANG, Zhengcheng LI
  • Publication number: 20210338836
    Abstract: The present invention relates to a multi-specific binding conjugate, a related composition and use. The binding conjugate comprises binding moieties for two or more different receptors, co-receptors, antigens or cellular markers which moieties are coupled by a nanomaterial. The multi-specific binding conjugate can be used to modulate an immune response, treat or prevent a disease or condition (e.g., a cancer, autoimmune disease, pathogen infection or inflammatory disease).
    Type: Application
    Filed: June 2, 2021
    Publication date: November 4, 2021
    Applicant: Benhealth Biopharmaceutic (Shenzhen) Co., Ltd.
    Inventors: Haoyang YU, Zhengcheng LI, Jing SU
  • Patent number: 11000603
    Abstract: The present invention relates to a multi-specific binding conjugate, a related composition and use. The binding conjugate comprises binding moieties for two or more different receptors, co-receptors, antigens or cellular markers which moieties are coupled by a nanomaterial. The multi-specific binding conjugate can be used to modulate an immune response, treat or prevent a disease or condition (e.g., a cancer, autoimmune disease, pathogen infection or inflammatory disease).
    Type: Grant
    Filed: September 13, 2018
    Date of Patent: May 11, 2021
    Assignee: Benhealth Biopharmaceutic (Shenzhen) Co., Ltd.
    Inventors: Haoyang Yu, Zhengcheng Li, Jing Su
  • Publication number: 20200345854
    Abstract: The present invention provides a bispecific antibody capable of being combined with immune cells to enhance a targeting tumor killing capability, and a preparation method therefor and an application thereof. Antibodies and degradable nanoparticles are connected by using a chemical method, so as to make the one nanoparticle be connected to two or more antibody molecules at the same time, wherein one antibody can be specifically bound with immune cells, and the other antibody or the other antibodies can be specifically bound to tumor cells so as to achieve the effect of enhancing the capability of the immune cells for specifically killing tumor cells in a targeting way.
    Type: Application
    Filed: July 22, 2020
    Publication date: November 5, 2020
    Applicant: BENHEALTH BIOPHARMACEUTIC (SHENZHEN) CO., LTD.
    Inventors: Haoyang YU, Zhengcheng LI, Jing SU
  • Patent number: 10758625
    Abstract: The present invention provides a bispecific antibody capable of being combined with immune cells to enhance a targeting tumor killing capability, and a preparation method therefor and an application thereof. Antibodies and degradable nanoparticles are connected by using a chemical method, so as to make the one nanoparticle be connected to two or more antibody molecules at the same time, wherein one antibody can be specifically bound with immune cells, and the other antibody or the other antibodies can be specifically bound to tumor cells so as to achieve the effect of enhancing the capability of the immune cells for specifically killing tumor cells in a targeting way.
    Type: Grant
    Filed: April 14, 2016
    Date of Patent: September 1, 2020
    Assignee: BENHEALTH BIOPHARMACEUTIC (SHENZHEN) CO., LTD.
    Inventors: Haoyang Yu, Zhengcheng Li, Jing Su
  • Publication number: 20200071420
    Abstract: The present invention relates to a multi-specific antibody conjugate (such as, a bispecific antibody conjugate), and a related composition, therapeutic method and use thereof. The antibody conjugate comprises a multispecific antibody, such as a bispecific antibody, conjugated to a nanomaterial. The antibody conjugate can be used to modulate an immune response, treat or prevent a disease or condition (e.g., a cancer, autoimmune disease, pathogen infection or inflammatory disease), etc.
    Type: Application
    Filed: January 23, 2018
    Publication date: March 5, 2020
    Inventors: Haoyang YU, Zhong WANG, Zhengcheng LI
  • Publication number: 20190276554
    Abstract: Provided in the present invention is a bispecific antibody which comprises an antibody fragment of anti-MUC1 VHH and an antibody fragment of anti-CD16 VHH. The antibody fragment used in the present invention is a variable region sequence derived from a heavy chain camelid antibody and has a high binding affinity to the antigen. Antibody fragments recognizing MUC1 and CD16 are constructed in the same antibody molecule by the invention, so that the antibody molecule can specifically bind to MUC1 and CD16 molecules to promote the killing effect of NK cells on MUC1-positive expression cells and has an inhibiting effect on the growth of MUC1-positive tumors. Also provided is a conjugate of the bispecific antibodies, a related pharmaceutical composition and use.
    Type: Application
    Filed: June 21, 2017
    Publication date: September 12, 2019
    Applicant: Benhealth Biopharmaceutic (Shenzhen) Co. Ltd.
    Inventors: Haoyang YU, Zhong WANG, Zhengcheng LI
  • Publication number: 20180369411
    Abstract: The present invention relates to a multi-specific binding conjugate, a related composition and use. The binding conjugate comprises binding moieties for two or more different receptors, co-receptors, antigens or cellular markers which moieties are coupled by a nanomaterial. The multi-specific binding conjugate can be used to modulate an immune response, treat or prevent a disease or condition (e.g., a cancer, autoimmune disease, pathogen infection or inflammatory disease).
    Type: Application
    Filed: September 13, 2018
    Publication date: December 27, 2018
    Applicant: Benhealth Biopharmaceutic (Shenzhen) Co., Ltd.
    Inventors: Haoyang YU, Zhengcheng LI, Jing SU
  • Publication number: 20180021440
    Abstract: The present invention provides a bispecific antibody capable of being combined with immune cells to enhance a targeting tumor killing capability, and a preparation method therefor and an application thereof. Antibodies and degradable nanoparticles are connected by using a chemical method, so as to make the one nanoparticle be connected to two or more antibody molecules at the same time, wherein one antibody can be specifically bound with immune cells, and the other antibody or the other antibodies can be specifically bound to tumor cells so as to achieve the effect of enhancing the capability of the immune cells for specifically killing tumor cells in a targeting way.
    Type: Application
    Filed: April 14, 2016
    Publication date: January 25, 2018
    Applicant: BENHEALTH BIOPHARMACEUTIC (SHENZHEN) CO., LTD.
    Inventors: Haoyang YU, Zhengcheng LI, Jing SU