Patents Assigned to Beijing Jifeng Technology Co., Limited
  • Abdominal wheel
    Patent number: D861808
    Type: Grant
    Filed: April 22, 2019
    Date of Patent: October 1, 2019
    Assignee: Beijing Jifeng Technology Co., Limited
    Inventor: Jianfei Shi
  • Air pump
    Patent number: D940204
    Type: Grant
    Filed: April 13, 2021
    Date of Patent: January 4, 2022
    Assignee: BEIJING JIFENG TECHNOLOGY CO., LIMITED
    Inventor: Jianfei Shi