Inventor · disambiguated record

Qinqin Han

Also filed as: HAN QINQIN

1 granted patent·0 citations·filing 2018–2018

5Inventor score

Technology areasG01H

Files withSTATE GRID SHANGHAI MUNICIPAL ELECTRIC POWER CO1

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1 record

0136US11035720B2Warning device for preventing underground cables against accidental excavationSTATE GRID SHANGHAI MUNICIPAL ELECTRIC POWER CO·Filed 2018·Granted Jun 15, 2021·0 cites·5 claims

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Qinqin Han — Patent Inventor | PatentIndex