Patents Assigned to SHANGHAI QINSUN ELECTRIC CO., LTD.
  • Explosion-proof lamp
    Patent number: D817535
    Type: Grant
    Filed: April 7, 2017
    Date of Patent: May 8, 2018
    Assignee: SHANGHAI QINSUN ELECTRIC CO., LTD.
    Inventors: Mingshan Feng, Youshan Zhou, Xiaozhou Qi, Min Xia
  • Explosion-proof lamp
    Patent number: D828584
    Type: Grant
    Filed: April 7, 2017
    Date of Patent: September 11, 2018
    Assignee: SHANGHAI QINSUN ELECTRIC CO., LTD.
    Inventors: Xiyou Yu, Qiuping Huang, Xiuzhang Li, Shuai Zhuo
  • Explosion-proof lamp
    Patent number: D849301
    Type: Grant
    Filed: April 7, 2017
    Date of Patent: May 21, 2019
    Assignee: SHANGHAI QINSUN ELECTRIC CO., LTD.
    Inventors: Xuhui Wang, Xiandong Zhang, Xiaochuan Qi, Yan Tao