Patents by Inventor Yuchang Zhang

Yuchang 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).

  • Concrete mold
    Patent number: D926840
    Type: Grant
    Filed: October 30, 2020
    Date of Patent: August 3, 2021
    Assignee: Guangzhou Daqian Zhuoer Network Technology Co., Ltd.
    Inventor: Yuchang Zhang
  • Concrete mold
    Patent number: D926841
    Type: Grant
    Filed: November 2, 2020
    Date of Patent: August 3, 2021
    Assignee: Guangzhou Daqian Zhuoer Network Technology Co., Ltd.
    Inventor: Yuchang Zhang
  • Concrete mold
    Patent number: D926842
    Type: Grant
    Filed: November 2, 2020
    Date of Patent: August 3, 2021
    Assignee: Guangzhou Daqian Zhuoer Network Technology Co., Ltd.
    Inventor: Yuchang Zhang