Education
| Thu 12 Jun 2025
Beijing, June 13 -- Beijing Kangshi Tech Co Ltd has secured a patent on cold and warm sense pen. Li Fangfang, Zhao Fang, Zhang Mingxia, Dong Yingyue, Sun Ran, Yu Shuyi, Li Caihong, Chen Suning, Zhang Yuting, Zhang Xiaoyan and Li Chendong developed the invention.
The patent application number is CN202420330445U 20240222. The p..