WEIZHONG WEI

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QINGDAO, CN

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Patents Grantslast 30 patents

Information Patent Grant
Method for treating an oily solid waste sludge
- Patent number 11,629,084
- Issue date Apr 18, 2023
- CHINA UNIVERSITY OF PETROLEUM BLUE SKY(QINGDAO) PETROLEUM TECHNOLOGY CO., LTD
- Weizhong Wei
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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

Patents Applicationslast 30 patents

Information Patent Application
MULTI-SOURCE MICROGRID POWER SUPPLY SYSTEM IN OIL WELL AREA
- Publication number 20220094174
- Publication date Mar 24, 2022
- CHINA UNIVERSITY OF PETROLEUM BLUE SKY(QINGDAO) PETROLEUM TECHNOLOGY CO.,LTD
- Weizhong WEI
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
SOLID WASTE TREATMENT METHOD
- Publication number 20210387885
- Publication date Dec 16, 2021
- CHINA UNIVERSITY OF PETROLEUM BLUE SKY (QINGDAO), PETROLEUM TECHNOLOGY CO., LTD.
- WEIZHONG WEI
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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