Enviornmental
| Mon 27 Apr 2026
Alexandria, April 27 -- U.S. Patent and Trademark Office has received Changsha Hetong Ecological Environment Tech Co Ltd patent application for Taiji Fishway Structure. Liu Xiaoping, Ye Yukang, Peng Zhe, Tang Yuyuan, Liu Wei, Su Tianyu, Chen Zixuan, Xu Jia, Chen Hao, Zhang Jiaqiang, Xie Xiaolong, Liu Yating, Liu Yuqing and Chen ..