YC

Yuanyuan Chang

QC Qingdao Haier Drum Washing Machine Co.: 4 patents #17 of 105Top 20%
📍 Shandong, CN: #230 of 2,138 inventorsTop 15%
Overall (All Time): #927,411 of 4,157,543Top 25%
5
Patents All Time

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
D1022373 Cart 2024-04-09
10947656 Replenishment control method of a multi-drum washing machine Peishi Lv, Wenwei Li, Jinkai Wang, Jun Wu 2021-03-16
10648123 Heating control method of a multi-drum washing machine Peishi Lv, Wenwei Li, Jinkai Wang, Jun Wu 2020-05-12
10570545 Control method of a double-drum washing machine Wenwei Li, Jinkai Wang, Jun Wu 2020-02-25
10233582 Control method of dual-drum washing machine Wenwei Li, Jinkai Wang, Haibo Wang 2019-03-19