Patents by Inventor Daomei Chen

Daomei Chen 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: 10669223
    Abstract: A method for synthesizing 4-(Hydroxymethyl)benzoic acid using P-xylene (PX) as a raw material, including: dissolving PX in an organic solvent to undergo an oxidation reaction with an oxidizing agent under an action of an M-MOF catalyst; and after the oxidation reaction, performing a post-treatment to obtain the 4-(Hydroxymethyl)benzoic acid; wherein, the metal element M in the M-MOF catalyst is Fe, Cu, Cr, Mn, Cu/Fe, Cu/Cr, Cu/Mn, Fe/Mn, Cr/Fe or Cr/Mn. The by-product produced in the reaction process is little, the yield is high, and the separation is convenient. The acid-base neutralization is not required in the reaction process, reducing pollution. A one-step reaction is employed which has mild reaction conditions, short reaction time, low pollution and is convenient for industrialized mass production; and the obtained 4-(Hydroxymethyl)benzoic acid can be used for preparing medicines and liquid crystal materials having wide applications.
    Type: Grant
    Filed: May 5, 2018
    Date of Patent: June 2, 2020
    Assignee: YUNNAN UNIVERSITY
    Inventors: Jiaqiang Wang, Ying Li, Daomei Chen
  • Patent number: 10653702
    Abstract: The invention relates to the field of metal-organic framework materials and the field of medical technology, relates to a method for inhibiting tumor angiogenesis or preventing and/or treating tumor, comprising administering to a subject in need thereof an effective amount of a metal-organic framework comprising Fe and ligand. The invention further relates to a method for inhibiting the expression of matrix metalloproteinase in a cell, comprising administering to the cell an effective amount of a metal-organic framework comprising Fe and ligand.
    Type: Grant
    Filed: May 8, 2017
    Date of Patent: May 19, 2020
    Assignee: Yunnan University
    Inventors: Bin Li, Daomei Chen, Jiaqiang Wang, Minfang Nie
  • Publication number: 20200062685
    Abstract: A method for synthesizing 4-(Hydroxymethyl)benzoic acid using P-xylene (PX) as a raw material, including: dissolving PX in an organic solvent to undergo an oxidation reaction with an oxidizing agent under an action of an M-MOF catalyst; and after the oxidation reaction, performing a post-treatment to obtain the 4-(Hydroxymethyl)benzoic acid; wherein, the metal element M in the M-MOF catalyst is Fe, Cu, Cr, Mn, Cu Te, Cu/Cr, Cu/Mn, Fe/Mn, Cr/Fe or Cr/Mn. The by-product produced in the reaction process is little, the yield is high, and the separation is convenient. The acid-base neutralization is not required in the reaction process, reducing pollution. A one-step reaction is employed which has mild reaction conditions, short reaction time, low pollution and is convenient for industrialized mass production; and the obtained 4-(Hydroxymethyl)benzoic acid can be used for preparing medicines and liquid crystal materials having wide applications.
    Type: Application
    Filed: May 5, 2018
    Publication date: February 27, 2020
    Applicant: YUNNAN UNIVERSITY
    Inventors: Jiaqiang WANG, Ying LI, Daomei CHEN
  • Publication number: 20170319595
    Abstract: The invention relates to the field of metal-organic framework materials and the field of medical technology, relates to a method for inhibiting tumor angiogenesis or preventing and/or treating tumor, comprising administering to a subject in need thereof an effective amount of a metal-organic framework comprising Fe and ligand. The invention further relates to a method for inhibiting the expression of matrix metalloproteinase in a cell, comprising administering to the cell an effective amount of a metal-organic framework comprising Fe and ligand.
    Type: Application
    Filed: May 8, 2017
    Publication date: November 9, 2017
    Applicant: Yunnan University
    Inventors: Bin Li, Daomei Chen, Jiaqiang Wang, Minfang Nie