GENEVA, May 11 -- NILFISK A/S (Marmorvej 8DK-2100 Copenhagen), 力奇有限公司 (丹麦哥本哈根马尔莫维-8), XU, Jun (Floor 5, Building D1, Songhu ZhiGu Industrial Park, 7 # Yanhe North Road, Liaobu TownDongguan, Guangdong 523000), 徐俊 (中国广东省东莞市寮步镇寮步沿河北路7号松湖智谷科创中心D1栋5楼) filed a patent application (PCT/CN2024/127988) for "CLEANING DEVICE AND CLEANING METHOD" on Oct 29, 2024. With publication no. WO/2025/092704, the details related to the patent appl...