ZS

Zhishen Su

Overall (All Time): #1,174,515 of 4,157,543Top 30%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
10378531 Non-beam pumping unit driven by a motor reduction unit — 2019-08-13
10233985 Hand brake system used on pumping unit without walking beam — 2019-03-19
10184467 Non-beam pumping unit driven by a biaxial motor — 2019-01-22
D835678 Pumping unit — 2018-12-11