Patents by Inventor Karen Yiyi Chen

Karen Yiyi Chen 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).

  • Pill case
    Patent number: D945147
    Type: Grant
    Filed: March 16, 2020
    Date of Patent: March 8, 2022
    Assignee: Nexusera LLC
    Inventors: Haiyang Qian, Ge Gao, Zhixuan Piao, Karen Yiyi Chen, Lin Lin, Jian Gong, Liangliang Chen