Lighting
| Thu 16 Apr 2026
Beijing, April 17 -- State Intellectual Property Office of China has awarded a patent to Lishui Zhenghao Power Supply Services Co Ltd and Lishui Haiwei Light Control Tech Co Ltd for Water Heater Cleaning Device. Shan Yufei, Yin Yue, Liu Xudong, Chen Yongbin, Ye Jianfang, Wu Quanxiang, Liu Feng, Li Shengjie, Fan Qingdong, Sun Yub..