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Patents Grantslast 30 patents

Information Patent Grant
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- 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

Patents Applicationslast 30 patents

Information Patent Application
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- 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