Patents by Inventor Zhi Bo Cheng

Zhi Bo Cheng 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).

  • Air purifier
    Patent number: D855169
    Type: Grant
    Filed: May 11, 2018
    Date of Patent: July 30, 2019
    Assignee: XIAMEN VORK HEALTH INDUSTRY CO., LTD
    Inventors: Si Zhong, Zhi Bo Cheng