Petrochemicals
| Tue 20 Oct 2026
Beijing, Oct. 20 -- State Intellectual Property Office of China has published Zhejiang Petrochemical patent application for Liquid Level Control Device, Method and Equipment and Storage Medium. The invention was developed by Tian Haibo, Liu Mingbo, Feng Hui, Li Hubing, Li Jing, Sun Wei, Wang Qing, Pan Yafei, Li Nanxi, Zheng Boga..