YY

Yunlan Yang

CP China National Petroleum: 1 patents #1 of 19Top 6%
📍 Langfang, CN: #2 of 22 inventorsTop 10%
Overall (2016): #168,311 of 481,213Top 35%
1
Patents 2016

Issued Patents 2016

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
9297196 Lift and rotation mechanism for quick door-opening device Feng Zou, Meng Li, Wenyong Li 2016-03-29