Patents by Inventor Hang Hao

Hang Hao 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).

  • Selenium-doped hydroxyapatite and preparation method thereof
    Patent number: 10525166
    Abstract: The invention relates to a selenium-doped hydroxyapatite and a preparation method thereof. The selenium-doped hydroxyapatite provided is a single crystal comprising a rod-like structure, a uniform morphology, and a good dispersibility. The preparation method comprises adding a mixed solution of a phosphate and a selenite dropwise to a mixed solution of a calcium salt and a dispersing agent, and reacting for 1.5-2.5 hrs at a controlled temperature of 80-90° C., to obtain a solution of a calcium phosphate amorphous precursor, followed by performing a hydrothermal reaction at 190-210° C., to obtain a selenium-doped hydroxyapatite comprising a rod-like structure.
    Type: Grant
    Filed: February 6, 2018
    Date of Patent: January 7, 2020
    Assignee: HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Shengmin Zhang, Yan Li, Hang Hao
  • SELENIUM-DOPED HYDROXYAPATITE AND PREPARATION METHOD THEREOF
    Publication number: 20190167848
    Abstract: The invention relates to a selenium-doped hydroxyapatite and a preparation method thereof. The selenium-doped hydroxyapatite provided is a single crystal comprising a rod-like structure, a uniform morphology, and a good dispersibility. The preparation method comprises adding a mixed solution of a phosphate and a selenite dropwise to a mixed solution of a calcium salt and a dispersing agent, and reacting for 1.5-2.5 hrs at a controlled temperature of 80-90° C., to obtain a solution of a calcium phosphate amorphous precursor, followed by performing a hydrothermal reaction at 190-210° C., to obtain a selenium-doped hydroxyapatite comprising a rod-like structure.
    Type: Application
    Filed: February 6, 2018
    Publication date: June 6, 2019
    Applicant: HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Shengmin Zhang, Yan Li, Hang Hao