Patents by Inventor Haojie Chen

Haojie Chen 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).

  • Coating machine and coating method
    Patent number: 11920236
    Abstract: A composite coating layer for coating a NdFeB rare earth magnet includes a first coating layer and a second coating layer formed over a surface of the first coating layer. The first coating layer includes a Nd coating layer, a Pr coating layer, or an alloy coating layer including two or more of Nd, Pr, and Cu. The second coating layer includes a Tb coating layer.
    Type: Grant
    Filed: June 24, 2021
    Date of Patent: March 5, 2024
    Assignees: SANVAC (BEIJING) MAGNETICS CO., LTD., BEIJING ZHONG KE SAN HUAN HI-TECH CO., LTD.
    Inventors: Guoan Chen, Bin Fang, Haojie Wang, Yugang Zhao
  • Portable collapsible foot bath basin
    Patent number: D978362
    Type: Grant
    Filed: July 12, 2021
    Date of Patent: February 14, 2023
    Inventor: Haojie Chen