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Dehai ZHANG

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  • Kunming, Yunnan, CN
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Patents Grantslast 30 patents

  • Information Patent Grant

    Automatic question sorting
    • Patent number 9,959,307
    • Issue date May 1, 2018
    • EMPIRE TECHNOLOGY DEVELOPMENT LLC
    • Dehai Zhang
    • G06 - COMPUTING CALCULATING COUNTING

Patents Applicationslast 30 patents

  • Information Patent Application

    ASSISTANCE SERVICE FACILITATION
    • Publication number 20160171419
    • Publication date Jun 16, 2016
    • Degang ZHANG
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Application

    AUTOMATIC QUESTION SORTING
    • Publication number 20160048545
    • Publication date Feb 18, 2016
    • EMPIRE TECHNOLOGY DEVELOPMENT LLC
    • Dehai ZHANG
    • G06 - COMPUTING CALCULATING COUNTING