INTERNATIONAL PATENT: NILFISK A/S, 力奇有限公司, SHEN, FEI, 沈菲 FILES APPLICATION FOR "FILTER USAGE DURATION STATISTICS SYSTEM AND VACUUM CLEANER"

GENEVA, Jan. 12 -- NILFISK A/S (Marmorvej 8 Copenhagen2100), 力奇有限公司 (丹麦哥本哈根马尔莫维-8), SHEN, Fei (Room S318 South Building Feicui Bay Industrial Park No. 16 ZhanYe Road Suzhou Industrial Park, Suzhou, Jiangsu 215127), 沈菲 (中国江苏省苏州市苏州工业园区展业路16号翡翠湾产业园南楼S318) filed a patent application (PCT/CN2025/106986) for "FILTER USAGE DURATION STATISTICS SYSTEM AND VACUUM CLEANER" on Jul 04, 2025. With publication no. WO/2026/008040, the details related to ...