GENEVA, Oct. 18 -- GUANGDONG CHENGYI TECHNOLOGY CO., LTD ((Residence Declaration) 9-3, West Building, Block E, No. 6, Keyuan 3rd Road, Xiaohuangpu Community, Ronggui Street, Shunde DistrictFoshan, Guangdong 528000), 广东澄一科技有限公司 (中国广东省佛山市顺德区容桂街道小黄圃社区科苑三路6号E座西楼9层之三（住所申报）) filed a patent application (PCT/CN2024/122433) for "RANGE HOOD AND CONTROL METHOD THEREFOR" on Sep 29, 2024. With publication no. WO/2025/213722, the d...