Patents by Inventor Jingru Liu

Jingru Liu 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: 20240076961
    Abstract: The present invention provides a mixed injection fluid and a corresponding method for enhancing CO2 sequestration and oil recovery, which is a method of the geothermal driven CO2 catalytic reduction for enhancing CO2 sequestration and oil recovery. In the present invention, a technical solution of the liquid nitrogen fracturing, an injection fluid injection, and the catalysis transportation and storage were adopted, which makes full use of the thermal energy of deep geothermal reservoir in combination with nano-Cu-based catalysts to activate the hydrothermal cracking reaction of crude oil and CO2 thermal reduction reaction, so to simultaneously enhance crude oil recovery and CO2 sequestration, fundamentally solving the existing problems of CO2-EOR technologies. Moreover, CO2 thermal catalytic reduction products can also work as a surfactant to accelerate the desorption crude oil from the rock surface and decrease the interfacial tension, and finally EOR.
    Type: Application
    Filed: November 13, 2022
    Publication date: March 7, 2024
    Applicant: CHINA UNIVERSITY OF PETROLEUM-BEIJING
    Inventors: Rukuan CHAI, Yuetian LIU, Wenkuan ZHENG, Jingpeng LI, Liang XUE, Jingru WANG, Yuting HE
  • Patent number: 10730926
    Abstract: Disclosed is a chromatographic method for isolating and purifying high-purity recombined human serum albumin, comprising: conducting cation-exchange chromatography on recombined human serum albumin, and adding alcohol to a buffer solution to remove endotoxin, so as to obtain a primary product I; under binding conditions, conducting anion/hydrophobic composite resin exchange chromatography on the primary product I to obtain an intermediate product II; conducting hydrophobic chromatography on the intermediate product II to obtain the target product, the purified high-purity recombined human serum albumin. The purity of the recombined human serum albumin obtained by isolating and purifying with the chromatographic method of the present invention is greater than 99.9999%, and the content of the endotoxin meets the criteria stipulated by Chinese pharmacopoeia.
    Type: Grant
    Filed: May 9, 2013
    Date of Patent: August 4, 2020
    Assignee: WUHAN HEALTHGEN BIOTECHNOLOGY CORP
    Inventors: Daichang Yang, Bo Shi, Qianni Shi, Jiquan Ou, Jingru Liu
  • Patent number: 10428107
    Abstract: A method for separating and purifying recombinant human serum albumin (rHSA) from transgenic rice grain, sequentially comprising the steps of: 1) subjecting crude extract of rHSA to cation exchange chromatography to obtain primary product I; 2) subjecting the primary product I to anion exchange chromatography to obtain secondary product II; 3) subjecting the secondary product II to hydrophobic chromatography to obtain purified rHSA. The method may further comprise a step of ceramic hydroxyapatite chromatography prior to the hydrophobic chromatography. The method has the advantages of low cost and easy operation. The resultant rHSA has a purity of about 99% by HPLC.
    Type: Grant
    Filed: March 9, 2018
    Date of Patent: October 1, 2019
    Assignee: Healthgen Biotechnology Co., Ltd.
    Inventors: Daichang Yang, Yang He, Guangfei Li, Jingru Liu
  • Publication number: 20180194801
    Abstract: A method for separating and purifying recombinant human serum albumin (rHSA) from transgenic rice grain, sequentially comprising the steps of: 1) subjecting crude extract of rHSA to cation exchange chromatography to obtain primary product I; 2) subjecting the primary product I to anion exchange chromatography to obtain secondary product II; 3) subjecting the secondary product II to hydrophobic chromatography to obtain purified rHSA. The method may further comprise a step of ceramic hydroxyapatite chromatography prior to the hydrophobic chromatography. The method has the advantages of low cost and easy operation. The resultant rHSA has a purity of about 99% by HPLC.
    Type: Application
    Filed: March 9, 2018
    Publication date: July 12, 2018
    Applicant: HEALTHGEN BIOTECHNOLOGY CO., LTD.
    Inventors: Daichang YANG, Yang HE, Guangfei LI, Jingru LIU
  • Patent number: 9951100
    Abstract: A method for separating and purifying recombinant human serum albumin (rHSA) from transgenic rice grain, sequentially comprising the steps of: 1) subjecting crude extract of rHSA to cation exchange chromatography to obtain primary product I; 2) subjecting the primary product I to anion exchange chromatography to obtain secondary product II; 3) subjecting the secondary product II to hydrophobic chromatography to obtain purified rHSA. The method may further comprise a step of ceramic hydroxyapatite chromatography prior to the hydrophobic chromatography. The method has the advantages of low cost and easy operation. The resultant rHSA has a purity of about 99% by HPLC.
    Type: Grant
    Filed: April 1, 2015
    Date of Patent: April 24, 2018
    Assignee: HEALTHGEN BIOTECHNOLOGY CO., LTD.
    Inventors: Daichang Yang, Yang He, Guangfei Li, Jingru Liu
  • Publication number: 20150329618
    Abstract: Disclosed is a chromatographic method for isolating and purifying high-purity recombined human serum albumin, comprising: conducting cation-exchange chromatography on recombined human serum albumin, and adding alcohol to a buffer solution to remove endotoxin, so as to obtain a primary product I; under binding conditions, conducting anion/hydrophobic composite resin exchange chromatography on the primary product I to obtain an intermediate product II; conducting hydrophobic chromatography on the intermediate product II to obtain the target product, the purified high-purity recombined human serum albumin. The purity of the recombined human serum albumin obtained by isolating and purifying with the chromatographic method of the present invention is greater than 99.9999%, and the content of the endotoxin meets the criteria stipulated by Chinese pharmacopoeia.
    Type: Application
    Filed: May 9, 2013
    Publication date: November 19, 2015
    Applicant: WUHAN HEALTHGEN BIOTECHNOLOGY CORP
    Inventors: Daichang YANG, Bo SHI, Qianni SHI, Jiquan OU, Jingru LIU
  • Publication number: 20150203530
    Abstract: A method for separating and purifying recombinant human serum albumin (rHSA) from transgenic rice grain, sequentially comprising the steps of: 1) subjecting crude extract of rHSA to cation exchange chromatography to obtain primary product I; 2) subjecting the primary product Ito anion exchange chromatography to obtain secondary product II; 3) subjecting the secondary product II to hydrophobic chromatography to obtain purified rHSA. The method may further comprise a step of ceramic hydroxyapatite chromatography prior to the hydrophobic chromatography. The method has the advantages of low cost and easy operation. The resultant rHSA has a purity of about 99% by HPLC.
    Type: Application
    Filed: April 1, 2015
    Publication date: July 23, 2015
    Inventors: Daichang YANG, Yang He, Guangfei Li, Jingru Liu
  • Patent number: 9023990
    Abstract: A method for separating and purifying recombinant human serum albumin (rHSA) from transgenic rice grain, sequentially comprising the steps of: 1) subjecting crude extract of rHSA to cation exchange chromatography to obtain primary product I; 2) subjecting the primary product I to anion exchange chromatography to obtain secondary product II; 3) subjecting the secondary product II to hydrophobic chromatography to obtain purified rHSA. The method may further comprise a step of ceramic hydroxyapatite chromatography prior to the hydrophobic chromatography. The method has the advantages of low cost and easy operation. The resultant rHSA has a purity of about 99% by HPLC.
    Type: Grant
    Filed: August 10, 2011
    Date of Patent: May 5, 2015
    Assignee: Healthgen Biotechnology Co., Ltd.
    Inventors: Daichang Yang, Yang He, Guangfei Li, Jingru Liu
  • Publication number: 20120165509
    Abstract: A method for separating and purifying recombinant human serum albumin (rHSA) from transgenic rice grain, sequentially comprising the steps of: 1) subjecting crude extract of rHSA to cation exchange chromatography to obtain primary product I; 2) subjecting the primary product I to anion exchange chromatography to obtain secondary product II; 3) subjecting the secondary product II to hydrophobic chromatography to obtain purified rHSA. The method may further comprise a step of ceramic hydroxyapatite chromatography prior to the hydrophobic chromatography. The method has the advantages of low cost and easy operation. The resultant rHSA has a purity of about 99% by HPLC.
    Type: Application
    Filed: August 10, 2011
    Publication date: June 28, 2012
    Applicant: Healthgen Biotechnology Co., Ltd.
    Inventors: Daichang Yang, Yang He, Guangfei Li, Jingru Liu