Haoliang SUN

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Yantai, CN

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Patents Grantslast 30 patents

Information Patent Grant
Electric power supply method and electric power supply system
- Patent number 11,677,238
- Issue date Jun 13, 2023
- Yantai Jereh Petroleum Equipment & Technologies Co., Ltd.
- Weiwei Liu
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER

Patents Applicationslast 30 patents

Information Patent Application
ELECTRIC POWER SUPPLY METHOD AND ELECTRIC POWER SUPPLY SYSTEM
- Publication number 20220345007
- Publication date Oct 27, 2022
- YANTAI JEREH PETROLEUM EQUIPMENT & TECHNOLOGIES CO., LTD.
- Weiwei LIU
- E21 - EARTH DRILLING MINING