Education
| Thu 25 Jun 2026
Beijing, June 25 -- Wuhan Zhiyuan Construction Group Co Ltd has applied Chinese patent for Method for Manufacturing Art Charcoal Pen Based on Lake Desilting Sediment. Zhu Yuheng, Chen Yuhua, Narusawa Jun, Zhu Jiaqi, Fu Chao, Qiu Min, Chen Zeyong, Huang Jian, Wang Lilin and Tang Jiaqi developed it.
The patent application numbe..