Patents by Inventor Zheng-Mao Zhang

Zheng-Mao Zhang 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).

  • WIRELESS CHARGING DEVICE
    Publication number: 20230198300
    Abstract: A wireless charging device includes a housing, a coil module and a magnetic attraction module. The coil module and the magnetic attraction module are accommodated within the housing. The magnetic attraction module can be moved upwardly or downwardly relative to the coil module. Consequently, the magnetic attraction force is adjustable according to the altitude adjustment of the coil module.
    Type: Application
    Filed: February 10, 2022
    Publication date: June 22, 2023
    Inventor: Zheng-Mao Zhang