Metal & Mining
| Mon 25 May 2026
Geneva, May 26 -- Huaneng Gansu Energy Dev Co Ltd Fanping Branch has sought patent for Coal Overflow Protection Device for Coal Chute. This invention was developed by Cao Jian, Ma Wenxin, Zhang Shengbin, Wei Jiayin, Liu Fajun, Cao Xuegong, Zheng Wen, Peng Hua, Li Minghai, Zhong Wanyun and Feng Ruiqi.
The patent application nu..