GENEVA, Nov. 24 -- HEFEI HAIER DRUM WASHING MACHINE CO., LTD. (No. 3456, Shixin Road,Economic - Technological Development ZoneHefei, Anhui 230601), 合肥海尔滚筒洗衣机有限公司 (中国安徽省合肥市经济技术开发区始信路3456号), HAIER SMART HOME CO., LTD. (No.1 Haier Road, Laoshan DistrictQingdao, Shandong 266101), 海尔智家股份有限公司 (中国山东省青岛市崂山区海尔路1号) filed a patent application (PCT/CN2025/09483...