Patents by Inventor Weidong Yuan

Weidong Yuan 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).

  • Radiative cooling optical filter, its preparing method and application
    Patent number: 11914179
    Abstract: This disclosure discloses a radiative cooling optical filter, comprising a substrate. One side of the substrate is polished, and the rough side of the substrate is provided with a metal reflective layer. The polished side of the substrate is subsequently provided with the intermediate layers and a top layer. The intermediate layer comprises alternatingly arranged layers A and layers B. The thickness of each layer A and layer B is 50-400 nm. The material of the layer A is silicon dioxide or aluminum oxide, and the material of the layer B is titanium dioxide, silicon nitride or silicon carbide. The material of the top layer is ytterbium fluoride, yttrium fluoride or zinc sulfide. The intermediate layer and the top layer jointly constitute a multi-resonant absorption enhancer in the atmospheric transparent window.
    Type: Grant
    Filed: January 18, 2019
    Date of Patent: February 27, 2024
    Assignee: ZHEJIANG UNIVERSITY
    Inventors: Weidong Shen, Huaxin Yuan, Chenying Yang, Xiaowen Zheng, Wen Mu, Zhen Wang, Wenjia Yuan, Yueguang Zhang
  • Teeth whitening instrument
    Patent number: D1004100
    Type: Grant
    Filed: December 31, 2021
    Date of Patent: November 7, 2023
    Inventor: Weidong Yuan