Patents by Inventor Shiqiang YAN

Shiqiang YAN 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: 11932653
    Abstract: The present invention relates to the technical field of medicine, and particularly to a lycorine derivative of Formula (I), and a pharmaceutically acceptable salt, a preparation method, a pharmaceutical composition and use thereof. The lycorine derivative has obvious antiviral activity and is useful in the treatment of viral diseases such as hand-foot-mouth disease.
    Type: Grant
    Filed: July 27, 2018
    Date of Patent: March 19, 2024
    Assignees: SHANDONG DYNE MARINE BIOPHARMACEUTICAL CO., LTD, BEIJING DYNE HIGH-TECH PEDIATRIC PHARMACEUTICAL R&D INSTITUTE CO., LTD.
    Inventors: Xiandao Pan, Yajun Yang, Longying Shen, Wensheng Zheng, Shuwang He, Shiqiang Yan, Yajun Jing
  • Publication number: 20220184637
    Abstract: An ore dressing process for medium-grade and low-grade mixed collophanite includes the following steps: S1; crushing ores to obtain crushed ores; S2: screening the crushed ores to obtain fine-fraction ores and coarse-fraction ores divided into at least two size fractions; S3: performing a photoelectric separation to the coarse-fraction ores of different size fractions to obtain photoelectric separation concentrates and photoelectric separation tailings of each size fraction; S4: combining the photoelectric separation concentrates of the each size fraction to obtain pre-enriched concentrates; S5: combining the fine-fraction ores and the pre-enriched concentrates, and then performing an ore grinding to obtain minerals to be separated; S6: adding water to the minerals to be separated to obtain a floatation pulp, and then performing a floatation to obtain phosphate concentrates and tailings.
    Type: Application
    Filed: February 4, 2021
    Publication date: June 16, 2022
    Applicant: Institute of Multipurpose Utilization of Mineral Resources, CAGS
    Inventors: Jie DENG, Shanzhi DENG, Xinhua ZHANG, Da CHEN, Shiqiang YAN, Jun SONG
  • Publication number: 20210206777
    Abstract: A lycorine derivative of Formula (I), and a pharmaceutically acceptable salt, a preparation method, a pharmaceutical composition and use thereof wherein the lycorine derivative has obvious antiviral activity and is useful in the treatment of viral diseases such as hand-foot-mouth disease.
    Type: Application
    Filed: July 27, 2018
    Publication date: July 8, 2021
    Applicants: SHANDONG DYNE MARINE BIOPHARMACEUTICAL CO., LTD, BEIJING DYNE HIGH-TECH PEDIATRIC PHARMACEUTICAL R&D INSTITUTE CO., LTD.
    Inventors: Xiandao PAN, Yajun YANG, Longying SHEN, Wensheng ZHENG, Shuwang HE, Shiqiang YAN, Yajun JING