Assignee
SU ZHISHEN
CN·4 granted patents·3 pending applications·2 citations·filing 2017–2017
Top patents by PatentIndex Score
7 records- 0163US10184467B2Non-beam pumping unit driven by a biaxial motorSU ZHISHEN·Filed 2017·Granted Jan 22, 2019·1 cites·3 claims
- 0261US10233985B2Hand brake system used on pumping unit without walking beamSU ZHISHEN·Filed 2017·Granted Mar 19, 2019·1 cites·3 claims
- 0334US10378531B2Non-beam pumping unit driven by a motor reduction unitSU ZHISHEN·Filed 2017·Granted Aug 13, 2019·0 cites·4 claims
- 0434US2018156318A1Non-beam Pumping Unit with a Motor Output Shaft Righting DeviceSU ZHISHEN·Filed 2017·Application pending·0 cites
- 0531US2018291716A1Double Motor Non-beam Pumping Unit with a Reducer Built in the RollerSU ZHISHEN·Filed 2017·Application pending·0 cites
- 0631US2018291988A1Single Motor Non-beam Pumping Unit with a Reducer Built in the RollerSU ZHISHEN·Filed 2017·Application pending·0 cites
- 0721USD835678SPumping unitSU ZHISHEN·Filed 2017·Granted Dec 11, 2018·0 cites·1 claims
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