Metal & Mining
| Wed 05 Aug 2026
Beijing, Aug. 6 -- Wanhua Chemical Group has sought patent for D, L-methionine Crystal and Preparation Method Thereof. This invention was developed by Zhang Shaonan, Zhu Chenhao, Cui Pingping, Zhai Wenchao, Tian Beiqian, Jiang Yixuan, Zhang Liang, Lin Zenghui, Gui Zhenyou, Guo Yunfeng, Li Pan and Shao Yunxia.
The patent appli..