Medical
| Thu 15 Oct 2026
Alexandria, Oct. 14 -- U.S. Patent and Trademark Office has awarded a patent to Chinalco Materials Application Res Institution Co Ltd for Excrement Collection Apparatus and Nursing Machine. Jiang Huixue, Li Yingdong, Liu Qingyong, Mao Xiaodong, Dong Xueguang, Huang Mingdong, Liu Xiandong, Xu Zhiqiang, Zheng Zhikai, Wang Junqiang..