Patents by Inventor Chaozhen Qin

Chaozhen Qin 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).

  • Water chiller
    Patent number: D895060
    Type: Grant
    Filed: February 12, 2018
    Date of Patent: September 1, 2020
    Assignee: HANS'S LASER TECHNOLOGY INDUSTRY GROUP CO., LTD.
    Inventors: Chaozhen Qin, Deluo Wen, Zhaoyong Guo, Qitao Lue, Yunfeng Gao