Security & Protection
| Thu 22 Oct 2026
Alexandria, Oct. 21 -- Siterwell Electronics Co Ltd has applied United States patent for Alarm with Obstacle Detection Function. Ding Zhenxiao, Ma Lirong, Chen Maotao, You Shixi, Wang Haichun, Wei Chan, Fan Zengchang, Li Guangjun, Wang Liping, Wang Jiejun, Yu Fanglei and Chen Dongfang developed it.
The patent application numb..