Shouyuan Zhao

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Qingdao, CN

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Patents Grantslast 30 patents

Information Patent Grant
Frequency converter
- Patent number 11,558,985
- Issue date Jan 17, 2023
- CHINA UNIVERSITY OF PETROLEUM BLUE SKY (QINGDAO) PETROLEUM TECHNOLOGY CO., LTD.
- Kaikai Li
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Group control device
- Patent number 11,523,467
- Issue date Dec 6, 2022
- CHINA UNIVERSITY OF PETROLEUM BLUE SKY(QINGDAO) PETROLEUM TECHNOLOGY CO., LTD
- Tao Ding
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
FREQUENCY CONVERTER
- Publication number 20210195809
- Publication date Jun 24, 2021
- CHINA UNIVERSITY OF PETROLEUM BLUE SKY(QINGDAO) PETROLEUM TECHNOLOGY CO.,LTD
- KAIKAI LI
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Application
GROUP CONTROL DEVICE
- Publication number 20210195685
- Publication date Jun 24, 2021
- China University of Petroleum Blue Sky (Qingdao) Petroleum Technology Co., Ltd
- Tao Ding
- H04 - ELECTRIC COMMUNICATION TECHNIQUE