Patents/Inventors

Renlong Zhang

BeijingCN9 patents

9 Patents

US124803652025
State Self-adaptive Turbine Type Pulse Generator and Downhole Drilling Tool
SINOPEC PETROLEUM ENGINEERING TECHNOLOGY RESEARCH INSTITUTE CO., Ltd.
0 cites
US123683092025
Charging Stand with Supporting Baffle Portion Fixedly Connected to Charging Stand Main Body
0 cites
US121767432024
Charging Stand
0 cites
USD10479062024
Charging Station for Mobile Device
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USD10400942024
Charging Station for Mobile Device
0 cites
US120314102024
Well Drilling Tool and Method for Determining Parameter Thereof
Sinopec Petroleum Engineering Technology Research Institute Co., Ltd.
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US119463422024
Drilling Tool
Sinopec Petroleum Engineering Technology Research Institute Co., Ltd.
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US119204372024
Well Drilling Acceleration Tool
Sinopec Petroleum Engineering Technology Research Institute Co., Ltd.
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US118984172024
Drilling Speed Increasing Device
SINOPEC PETROLEUM ENGINEERING TECHNOLOGY RESEARCH INSTITUTE CO., Ltd.
0 cites