CD

Chongchao Duan

QC Qingdao Haier Drum Washing Machine Co.: 1 patents #16 of 40Top 40%
📍 Shandong, CN: #124 of 402 inventorsTop 35%
Overall (2022): #501,938 of 548,613Top 95%
1
Patents 2022

Issued Patents 2022

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
11236452 Dual-drum washing machine Wenwei Li, Jinkai Wang, Xiao NING, Xinguo Tian 2022-02-01