Assignee
SINOPEC OILFIELD SERVICE CORP
CN·3 granted patents·0 citations·filing 2014–2020
Top patents by PatentIndex Score
3 records- 0144US10935679B2Coupling evaluation geophone and method for eliminating ground-geophone coupling effectSINOPEC OILFIELD SERVICE CORP·Filed 2017·Granted Mar 2, 2021·0 cites·12 claims
- 0242US9938445B2Comb polymer, method of preparing the same, and use thereofSINOPEC OILFIELD SERVICE CORP·Filed 2014·Granted Apr 10, 2018·0 cites·6 claims
- 0326US11359466B2Perforating device for horizontal wellsSINOPEC OILFIELD SERVICE CORP·Filed 2020·Granted Jun 14, 2022·0 cites·9 claims
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