Patents by Inventor Yuefei Geng

Yuefei Geng 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).

  • AMERICAN COCKROACH EXTRACT, PREPARATION THEREOF, PREPARATION METHODS THEREFOR AND APPLICATIONS THEREOF
    Publication number: 20220339205
    Abstract: The present application relates to the technical field of medicine, and in particular to Periplaneta americana L. extract, a preparation thereof, a preparation method and application thereof. The method for preparing Periplaneta americana L. extract includes the steps: 1) soaking fresh Periplaneta americana L. extract with ethanol; 2) reflux extracting with ethanol, and then filtering and combining the filtrates; and 3) concentrating the filtrate into extractum. The method uses environmental protection reagents such as ethanol, increases the content of bioactive substances of Periplaneta americana L. extract, saves time, human and material resources, saves energy and reduces production cost. The Periplaneta americana L. extract obtained by the present method has better anti-inflammatory activity and higher content of amino acids.
    Type: Application
    Filed: October 10, 2020
    Publication date: October 27, 2022
    Applicant: LIANGSHAN JIANENGDA BIOMATERIALS BREEDING CO., LTD.
    Inventor: Yuefei GENG
  • Method for preparing mesaconine and related intermediaries thereof
    Patent number: 11465971
    Abstract: The present invention relates to a method for preparing mesaconine and related intermediaries. Specifically, in the method for preparing mesaconine of the present invention, aconitine extracted from the Aconitum soongaricum Stapf. of aconitum plant is used as a raw material and subjected to alkalization, acetylation, N-de-ethylation, N-methylation, and hydrolysis to obtain mesaconine. The method for preparing mesaconine in the present invention is simple in operation, high in yield, environmentally friendly and pollution-free, and suitable for industrial production.
    Type: Grant
    Filed: January 23, 2019
    Date of Patent: October 11, 2022
    Inventors: Fengpeng Wang, Yuefei Geng, Xixian Jian, Donglin Chen, Funeng Geng
  • Crystalline forms of mesaconine and preparation methods therefor
    Patent number: 10941116
    Abstract: The present invention relates to crystalline forms of mesaconine. Specifically, the present invention relates to crystalline form A, crystalline form B and crystalline form C of mesaconine and preparation methods thereof. In the method, the mesaconine is crystallized in solvent, and then the crude crystal is dried to obtain target crystalline form. The crystalline forms of mesaconine according to the present invention have good solubility, good stability, low hygroscopicity, long-term storage capability and good reproducibility, and have a good prospect to be developed as pharmaceuticals.
    Type: Grant
    Filed: January 23, 2019
    Date of Patent: March 9, 2021
    Assignee: Gooddoctor Pharmaceutical Group Co., Ltd.
    Inventors: Yuefei Geng, Funeng Geng, Xiuying Ma, Ruobing Chao
  • Method For Preparing Mesaconine And Related Intermediaries Thereof
    Publication number: 20210040042
    Abstract: The present invention relates to a method for preparing mesaconine and related intermediaries. Specifically, in the method for preparing mesaconine of the present invention, aconitine extracted from the Aconitum soongaricum Stapf. of aconitum plant is used as a raw material and subjected to alkalization, acetylation, N-de-ethylation, N-methylation, and hydrolysis to obtain mesaconine. The method for preparing mesaconine in the present invention is simple in operation, high in yield, environmentally friendly and pollution-free, and suitable for industrial production.
    Type: Application
    Filed: January 23, 2019
    Publication date: February 11, 2021
    Applicant: Gooddoctor Pharmaceutical Group Co., Ltd.
    Inventors: Fengpeng Wang, Yuefei Geng, Xixian Jian, Donglin Chen, Funeng Geng
  • Crystalline Forms Of Mesaconine And Preparation Methods Therefor
    Publication number: 20200339514
    Abstract: The present invention relates to crystalline forms of mesaconine. Specifically, the present invention relates to crystalline form A, crystalline form B and crystalline form C of mesaconine and preparation methods thereof. In the method, the mesaconine is crystallized in solvent, and then the crude crystal is dried to obtain target crystalline form. The crystalline forms of mesaconine according to the present invention have good solubility, good stability, low hygroscopicity, long-term storage capability and good reproducibility, and have a good prospect to be developed as pharmaceuticals.
    Type: Application
    Filed: January 23, 2019
    Publication date: October 29, 2020
    Applicant: Gooddoctor Pharmaceutical Group Co., Ltd.
    Inventors: Yuefei Geng, Funeng Geng, Xiuying Ma, Ruobing Chao