Metal & Mining
| Wed 02 Sep 2026
Beijing, Sept. 2 -- State Intellectual Property Office of China has released Wang Baiyan patent application for Deep Sampling Device for Coal Mine Geological Survey. This invention was developed by Wang Hongfei, Jia Jungang, Zha Xinxing, Li Xingxing, Ma Shanshan, Wang Baiyan, Shi Enming, Cheng Yapeng, Guo Yajie, Yang Liu, Li Hao..