TREA

China University of Petroleum Blue Sky (Qingdao) Petroleum Technology Co., Ltd

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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
  • 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
  • Information Patent Grant

    Frequency converter module
    • Patent number 11,404,994
    • Issue date Aug 2, 2022
    • CHINA UNIVERSITY OF PETROLEUM BLUE SKY(QINGDAO) PETROLEUM TECHNOLOGY CO., LTD
    • Zhihao Wei
    • H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER

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 MODULE
    • Publication number 20210359636
    • Publication date Nov 18, 2021
    • CHINA UNIVERSITY OF PETROLEUM BLUE SKY(QINGDAO) PETROLEUM TECHNOLOGY CO.,LTD
    • ZHIHAO WEI
    • G01 - MEASURING TESTING
  • 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

Trademarklast 30 trademarks