Patents by Inventor Dongrong Liu

Dongrong Liu 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).

  • Handle for a kitchen knife
    Patent number: D1027554
    Type: Grant
    Filed: June 27, 2022
    Date of Patent: May 21, 2024
    Inventors: Dongrong Liu, Zhiyong Li, Xinyan Zhao
  • Multifunction printer
    Patent number: D1042618
    Type: Grant
    Filed: April 27, 2023
    Date of Patent: September 17, 2024
    Assignee: Zhuhai Pantum Electronics Co., Ltd.
    Inventors: Aiguo Yin, Jibing Peng, Geng Wang, Ke Mou, Weisheng He, Huizhao Deng, Tian Wang, Rubo Li, Dongrong Liu