QL

Qingfeng Liu

AL Astec International Limited: 1 patents #6 of 25Top 25%
📍 Qingdao, CA: #14 of 26 inventorsTop 55%
Overall (2018): #272,373 of 503,207Top 55%
1
Patents 2018

Issued Patents 2018

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
9991799 Switch mode power supplies including primary side clamping circuits controlled based on secondary side signals Jun Liu, Chunyu DING, Zhendong Zhang 2018-06-05