Assignee
LIU SHUHAO
CN·1 granted patent·4 pending applications·0 citations·filing 2015–2018
Technology mixE21B5
Top patents by PatentIndex Score
5 records- 0123US11346199B2Fluid separating deviceLIU SHUHAO·Filed 2018·Granted May 31, 2022·0 cites·9 claims
- 0220US2016194932A1Rubber Sleeve Protection Ring and Downhole Plugging ApparatusLIU SHUHAO·Filed 2015·Application pending·0 cites
- 0320US2015191992A1Mandrel for Re-pressurization and Downhole Plugging ApparatusLIU SHUHAO·Filed 2015·Application pending·0 cites
- 0413US2015252647A1Stress-buffer release lever and downhole plugging apparatusLIU SHUHAO·Filed 2015·Application pending·0 cites
- 0513US2016265304A1Anchor Structure and Downhole Plugging ApparatusLIU SHUHAO·Filed 2015·Application pending·0 cites
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