YR

Yi Rong

Overall (2022): #55,954 of 548,613Top 15%
3
Patents 2022

Issued Patents 2022

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
11441564 Driving structure of three-axis multi-stage roots pump Yue Li, Miaole Shen 2022-09-13
11339783 Pump housing structure of three-axis multi-stage Roots pump Yue Li, Miaole Shen 2022-05-24
11320036 Transmission structure of motor connection of roots pump Yue Li, Miaole Shen 2022-05-03