Patents by Inventor Wuyuan Zhao

Wuyuan Zhao 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).

  • Bioactive micro-nano pore gradient oxide ceramic film
    Patent number: 11426488
    Abstract: The invention discloses micron-nano pore gradient oxide ceramic films with biological activity, which are prepared by the following methods: The surface structures are biomedical engineering materials; Inorganic precursor coating solutions or the organic precursor coating solutions are prepared with or without micron and nanopore additives; The surface structures of the substrate are treated in the following steps: (1) The surfaces of the substrate are coated by the inorganic precursor coating solutions or the organic precursor coating solutions with or without micron and nanopore additives; (2) The substrate with coatings are dried, sintered, naturally cooled, and cleaned. (3) The biomedical engineering materials with the micron-nanopore gradient oxide ceramic films, especially biomimetic micro-nanoporous gradient alumina film, yttrium partially stabilized zirconia film, and alumina doped yttrium partially stabilized zirconia films in this invention greatly improve biocompatibility and biological activity.
    Type: Grant
    Filed: May 18, 2018
    Date of Patent: August 30, 2022
    Assignee: Hangzhou Erran Technologies Co., Ltd.
    Inventors: Tingkai Li, Zhijian Shen, Jie Zhang, Wuyuan Zhao, Li Tao
  • A Bioactive Micro-nano Pore Gradient Oxide Ceramic Film
    Publication number: 20200179564
    Abstract: The invention discloses micron-nano pore gradient oxide ceramic films with biological activity, which are prepared by the following methods: The surface structures are biomedical engineering materials; Inorganic precursor coating solutions or the organic precursor coating solutions are prepared with or without micron and nanopore additives; The surface structures of the substrate are treated in the following steps: (1) The surfaces of the substrate are coated by the inorganic precursor coating solutions or the organic precursor coating solutions with or without micron and nanopore additives; (2) The substrate with coatings are dried, sintered, naturally cooled, and cleaned. (3) The biomedical engineering materials with the micron-nanopore gradient oxide ceramic films, especially biomimetic micro-nanoporous gradient alumina film, yttrium partially stabilized zirconia film, and alumina doped yttrium partially stabilized zirconia films in this invention greatly improve biocompatibility and biological activity.
    Type: Application
    Filed: November 29, 2018
    Publication date: June 11, 2020
    Inventors: Tingkai Li, Zhijian Shen, Jie Zhang, Wuyuan Zhao, Li Tao