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Dongying, CN
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last 30 patents
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Patent Grant
Rotating magnetic field downhole power generation device
Patent number
9,598,937
Issue date
Mar 21, 2017
China Petroleum and Chemical Corporation
Wei Chen
E21 - EARTH DRILLING MINING
Patents Applications
last 30 patents
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Patent Application
ROTATING MAGNETIC FIELD DOWNHOLE POWER GENERATION DEVICE
Publication number
20140251592
Publication date
Sep 11, 2014
SHENGLI DRILLING TECHNOLOG RESEARCH INSTITUTE OF SINOPEC
Wei Chen
F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...