Patents by Inventor Mi Jin

Mi Jin 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: 20240271159
    Abstract: Described herein is methods for rAAV particles purification, particularly for the purification of full rAAV particles from rAAV preparations comprising both the full rAAV particles and non-full particles.
    Type: Application
    Filed: June 10, 2022
    Publication date: August 15, 2024
    Inventors: Ohnmar KHANAL, Vijesh KUMAR, Mi JIN
  • Publication number: 20230060770
    Abstract: A wash buffer comprising a surfactant for use in affinity and cation exchange chromatography to purify proteins of interest from protein aggregates and to remove and/or inactivate viruses. When used during affinity or cation exchange chromatography for the purification of a protein of interest, such as an antibody, the wash buffer significantly improves viral clearance from the preparation, while also reducing the levels of host cell proteins and protein aggregates. Following affinity or cation exchange chromatography with the wash buffer, the protein of interest may be further purified using other chromatography and filtration operations.
    Type: Application
    Filed: August 19, 2022
    Publication date: March 2, 2023
    Inventors: Lu WANG, Albert KAO, Zhaoqing ZHANG, Mi JIN, Tianyi ZHOU
  • Patent number: 11426706
    Abstract: A wash buffer comprising a surfactant for use in affinity and cation exchange chromatography to purify proteins of interest from protein aggregates and to remove and/or inactivate viruses. When used during affinity or cation exchange chromatography for the purification of a protein of interest, such as an antibody, the wash buffer significantly improves viral clearance from the preparation, while also reducing the levels of host cell proteins and protein aggregates. Following affinity or cation exchange chromatography with the wash buffer, the protein of interest may be further purified using other chromatography and filtration operations.
    Type: Grant
    Filed: June 21, 2018
    Date of Patent: August 30, 2022
    Assignee: Cephalon, Inc.
    Inventors: Lu Wang, Albert Kao, Zhaoqing Zhang, Mi Jin, Tianyi Zhou
  • Publication number: 20220162260
    Abstract: In certain embodiments, the invention provides a method of purifying a protein of interest from a mixture which comprises the protein of interest and one or more contaminants, comprising: (a) contacting the mixture with a dextran polymer under conditions suitable for the dextran polymer to bind to one or more contaminants, thereby to form a contaminant precipitate; (b) separating the contaminant precipitate from the mixture to form a solution, thereby purifying the protein of interest.
    Type: Application
    Filed: February 8, 2022
    Publication date: May 26, 2022
    Inventors: Zhijun Tan, Nripen Singh, Mi Jin, Chao Huang, Richard P. Martel, JR., Angela T. Lewandowski, Zhengjian Li
  • Patent number: 10688412
    Abstract: A wash buffer comprising greater than 0 mM and less than about 500 mM arginine, greater than 0 mM and less than about 250 mM guanidine, greater than 0 mM and less than about 250 mM sodium chloride, and greater than 0 mM and less than about 50 mM of an anionic surfactant, or greater than 0% and less than about 0.25% w/v of a non-ionic surfactant. When used during affinity chromatography purification of a protein of interest, such as an antibody, the wash buffer significantly reduces the level of host cell proteins from the preparation. Following affinity chromatography with the wash buffer, the protein of interest may be further purified using membrane chromatography.
    Type: Grant
    Filed: July 25, 2017
    Date of Patent: June 23, 2020
    Assignee: Cehpalon, Inc.
    Inventors: Lu Wang, Tianyi Zhou, Zhaoqing Zhang, Mi Jin
  • Publication number: 20190046956
    Abstract: A wash buffer comprising a surfactant for use in affinity and cation exchange chromatography to purify proteins of interest from protein aggregates and to remove and/or inactivate viruses. When used during affinity or cation exchange chromatography for the purification of a protein of interest, such as an antibody, the wash buffer significantly improves viral clearance from the preparation, while also reducing the levels of host cell proteins and protein aggregates. Following affinity or cation exchange chromatography with the wash buffer, the protein of interest may be further purified using other chromatography and filtration operations.
    Type: Application
    Filed: June 21, 2018
    Publication date: February 14, 2019
    Inventors: Lu WANG, Albert Kao, Zhaoqing Zhang, Mi Jin, Tianyi Zhou
  • Publication number: 20180105555
    Abstract: In certain embodiments, the invention provides a method of purifying a protein of interest from a mixture which comprises the protein of interest and one or more contaminants, comprising: (a) contacting the mixture with a dextran polymer under conditions suitable for the dextran polymer to bind to one or more contaminants, thereby to form a contaminant precipitate; (b) separating the contaminant precipitate from the mixture to form a solution, thereby purifying the protein of interest.
    Type: Application
    Filed: March 18, 2016
    Publication date: April 19, 2018
    Inventors: Zhijun Tan, Nripen Singh, Mi Jin, Chao Huang, Richard P. Martel, JR., Angela T. Lewandowski, Zhengjian Li
  • Publication number: 20180105554
    Abstract: In certain embodiments, the invention provides a method of purifying a protein of interest from a mixture by using a dextran polymer.
    Type: Application
    Filed: March 18, 2016
    Publication date: April 19, 2018
    Inventors: Mi JIN, Chao HUANG, Zhengjian LI, Zhijun TAN
  • Publication number: 20180021696
    Abstract: A wash buffer comprising greater than 0 mM and less than about 500 mM arginine, greater than 0 mM and less than about 250 mM guanidine, greater than 0 mM and less than about 250 mM sodium chloride, and greater than 0 mM and less than about 50 mM of an anionic surfactant, or greater than 0% and less than about 0.25% w/v of a non-ionic surfactant. When used during affinity chromatography purification of a protein of interest, such as an antibody, the wash buffer significantly reduces the level of host cell proteins from the preparation. Following affinity chromatography with the wash buffer, the protein of interest may be further purified using membrane chromatography.
    Type: Application
    Filed: July 25, 2017
    Publication date: January 25, 2018
    Inventors: Lu WANG, Tim ZHOU, Zhaoqing ZHANG, Mi JIN
  • Publication number: 20070110833
    Abstract: The present invention is related to an extract of Cucurbitaceae family plant or the purified extract isolated therefrom having anti-adipogenic and anti-obesity activity, and a composition comprising the same. The extract of Cucurbitaceae family plant of the present invention showed potent reducing activity of body weight, decreasing effect on the blood triglyceride and cholesterol level, activating activity of PPAR ? and ?, reducing activity of the gene expression of stearoyl-CoA desaturase, and preventing activity from the adipogenesis of precursor fat cells with no toxicity, therefore, those extract can be useful in treating or preventing obesity and adipogenesis-involved diseases as a medicine or health care food.
    Type: Application
    Filed: December 3, 2004
    Publication date: May 17, 2007
    Inventors: Mi Jin, Jae Ryu, Hyoun Choi, Hyun Jung, Kyoung Park, Sun Kim
  • Publication number: 20070110834
    Abstract: The present invention is related to an alcohol compound isolated from the extract of Cucurbitaceae family plant having anti-adipogenic and anti-obesity activity, and a composition comprising the same. The compound showed potent reducing activity of body weight, decreasing effect on the blood triglyceride and cholesterol level, activating activity of PPAR alpha and preventing activity from the adipogenesis of precursor fat cells with no toxicity, therefore, those compound can be useful in treating or preventing obesity and adipogenesis-involved diseases as a medicine or health care food.
    Type: Application
    Filed: December 3, 2004
    Publication date: May 17, 2007
    Inventors: Mi Jin, Jae Ryu, Hyoun Choi, Hyun Jung, Kyoung Park, Sun Kim